...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8165492 | Developer cartridge, developing unit and image forming apparatus A developer cartridge includes a first frame and a second frame, which confronts the first frame. The second frame includes an opening, through which developer is passed, and which is openable and closable by the first frame in accordance with a relative movement be... | 04/24/2012 |
| 8160471 | Developer supply container A developer supply container detachably mountable to an image forming apparatus includes a rotatable container body provided with a portion-to-be-engaged on an inner surface thereof; an opening for permitting discharging of the developer; a sealing portion for seali... | 04/17/2012 |
| 8145093 | Developing apparatus having a spacer and a leakage preventer A developing apparatus includes an organic photo conductor, an OPC frame part to support the organic photo conductor, a developing roller to develop a latent image formed on the organic photo conductor by supplying a developer, a developing roller frame part to supp... | 03/27/2012 |
| 8145092 | Switching mechanism for toner cartridge A switching mechanism for a toner cartridge includes a base and a sliding member. The base is mounted to a housing. A chamber is defined between the housing and the base for receiving the sliding member. The base has a guiding slot. The sliding member has a body rec... | 03/27/2012 |
| 8099014 | Image forming apparatus A developing device includes a developer reservoir having developer stored therein, a developing roller for carrying developer, a sealing member which is brought into close contact with the developer portion so as to cover a communication port in communication with ... | 01/17/2012 |
| 8099015 | Developing device, process cartridge, image forming device, and developer container A developing device includes: a housing that has a developer containing part and an opening, the developer containing part containing a developer, and the opening allowing the developer to flow through; a sheet member that is provided in the housing, seals the openi... | 01/17/2012 |
| 8073357 | Developer cartridge, developing unit and image forming apparatus having seal member for preventing leakage of developer A developer cartridge includes a first frame and a second frame that confronts the first frame. The second frame includes an opening, through which developer is passed, and which is openable and closable by the first frame in accordance with a relative movement betw... | 12/06/2011 |
| 8050591 | Powder developer holding apparatus, developing apparatus, and image forming apparatus A powder developer holding apparatus prevents developer leakage. A housing holds powder developer, and includes a discharging opening through which the powder developer is discharged. A shutter is mounted to the housing and is rotatable relative to the housing to an... | 11/01/2011 |
| 8036568 | Image forming apparatus and toner cartridge used for the same An image forming apparatus includes an image forming section and a toner cartridge which is loadable into the image forming section. The toner cartridge includes a seal member which is bonded to a peripheral edge of a toner discharging port by an electro-releasing a... | 10/11/2011 |
| 8023858 | Material supplying container having sealing member, and image forming unit including same A material supplying container and an image forming apparatus are provided. The material supplying container includes two or more containers each of which contains a material; supply openings respectively formed in and corresponding to the containers; and seal membe... | 09/20/2011 |
| 8019250 | Developer cartridge having inner and outer casings A developer cartridge includes an inner casing, an outer casing, a sealing member, an inner protrusion and an outer protrusion. The inner casing is configured to accommodate toner therein, the inner casing having a circular cylindrical shape whose axis extends in an... | 09/13/2011 |
| 8005395 | Universal cartridge seal and method for fixing the seal to a cartridge A toner hopper seal assembly is disclosed. The toner hopper seal assembly has a gasket which has a gasket opening, a pull strip having a first and second end, the pull strip attached to a first side of the gasket and covering the gasket opening. The first end of the... | 08/23/2011 |
| 7983592 | Toner container having a sealed toner cap A toner container for replenishing toner to an image forming apparatus including: a container main body which comprises a toner storage section and a toner outlet; a cap that covers the toner outlet; and a seal member that is interposed between the container main bo... | 07/19/2011 |
| 7937018 | Developer supply container A developer supply container detachably mountable to a developer receiving apparatus, the developer supply container includes an containing portion for containing a developer; a discharge opening, provided in the containing portion, for permitting discharge of the d... | 05/03/2011 |
| 7917055 | Toner container including a toner draining unit and a shutter, and corresponding image forming apparatus A toner container includes a vessel for storing toner, a toner draining unit having a toner draining passage, and a shutter in the toner draining passage. The toner draining passage includes a horizontal passage and a connection passage. Further, the toner draining ... | 03/29/2011 |
| 7903996 | Angled seal for laser toner cartridge hopper A remanufactured laser printer toner cartridge having a foam gasket seal with the transverse edge of the inner periphery extending from a longitudinal edge at an acute angle, preferably about 22 degrees, which angled edge prevents post testing excess toner from buil... | 03/08/2011 |
| 7881633 | Developer cartridge, developing device and image forming apparatus A developer cartridge includes an outside frame, an inside frame, a first sealing member and a second sealing member. The outside frame includes an outside supply opening and an outside return opening. The inside frame includes a developer chamber for accommodating ... | 02/01/2011 |
| 7869737 | Developer cartridge, developing device and image forming apparatus A developer cartridge includes a storing portion that stores developer and has an opening, a shutter member that opens and closes the opening, and a seal member that seals between the shutter member and the storing portion. The seal member is so provided that both e... | 01/11/2011 |
| 7831170 | Toner cartridge and image forming apparatus In one embodiment, a toner cartridge of the invention is installed in an image forming apparatus, and includes a toner storage container that has a toner discharge port, and a toner discharge roller disposed inside of the toner storage container so as to block the t... | 11/09/2010 |
| 7826765 | Developer container and image forming apparatus including the developer container with sealing mechanism providing enhanced usability A developer container supplies developer to a development device and includes a storage, an opening, a first seal member, a through-hole, and a second seal member. The developer is supplied from the storage to the development device through the opening. The first se... | 11/02/2010 |
| 7822357 | Developing apparatus having spacer and leak preventer A developing apparatus includes an organic photo conductor, an OPC frame part to support the organic photo conductor, a developing roller to develop a latent image formed on the organic photo conductor by supplying a developer, a developing roller frame part to supp... | 10/26/2010 |
| 7805092 | Toner container, toner feed device and image forming apparatus A toner container that is removably attached to a toner feed device for feeding toner to a developing unit provided for an image forming apparatus, includes: a container body filled with toner; and a supporting structure, which supports the container body in a rotat... | 09/28/2010 |
| 7796914 | Powder container having a cylindrical shutter A toner container includes a storing body that stores toner, a toner reception opening that receives the toner from the toner storing body, a shutter opening, a cylindrical shutter, and an O-shaped elastic ring disposed at the shutter opening configured to seal a sp... | 09/14/2010 |
| 7769317 | Developing device, process cartridge, image forming device and developer container A developing device includes: a housing having an opening; a sheet member provided on the housing and sealing the opening when not used, the sheet member including a forward part and a backward part, the forward part extending from a base end to a folded part, and t... | 08/03/2010 |
| 7693448 | Angled seal for laser toner cartridge hopper A remanufactured laser printer toner cartridge having a foam gasket seal with the transverse edge of the inner periphery extending from a longitudinal edge at an acute angle, preferably about 22 degrees, which angled edge prevents post testing excess toner from buil... | 04/06/2010 |
| 7689141 | Laser printer toner cartridge seal and method A reassembled laser printer toner cartridge and method of manufacture including a cartridge seal assembly in which the remains of an OEM laser printer toner cartridge's toner hopper pull seal strip(s) is left in position, or a substitute conductive strip is put in t... | 03/30/2010 |
| 7672609 | Toner container and toner supply device unit using the same A toner bottle that is composed of a main body filled with toner and a bottle-side toner discharges port for discharging toner from the main body is adapted to discharge the toner in the main body out of the container whilst the toner bottle is being rotated in the ... | 03/02/2010 |
| 7650097 | Slide shutter and toner supplying apparatus having the same A toner supplying apparatus having a sealing member. The toner supplying apparatus includes a toner tank to hold toner, the toner tank having a toner supplying hole to discharge the toner, a slide shutter disposed inside the toner tank so as to close the toner suppl... | 01/19/2010 |
| 7603054 | Image forming apparatus, powder supplying unit, toner container, powder container, and method of recycling the powder container A part of a toner supply path is formed in a setting unit (100), and a nozzle (110) coupled to a toner container (20) is provided, wherein the fitting direction of the toner container (20) to the setting unit (100) and the coupling... | 10/13/2009 |
| 7596338 | Toner container, toner feed device and image forming apparatus A toner container for an image forming apparatus includes: a toner container body; structure supporting the container body in a rotatable manner and comprising a toner feed aperture. The supporting structure includes a shutter opening and closing mechanism for openi... | 09/29/2009 |
| 7561821 | Developer supplying apparatus with developer container supporting body A developer supplying apparatus of the present invention includes a toner bottle and a bottle supporting member that is in the shape of substantially a cylinder. A slip ring is attached to an inner peripheral surface of the bottle supporting member so as to be slida... | 07/14/2009 |
| 7542697 | Toner supply unit and image forming apparatus The toner supply unit is provided with a preventing unit for preventing toner contamination due to toner leakage from that sealing valve. A mouth ring of the toner container is provided with the sealing valve. This valve is opened/closed by removing/inserting a nozz... | 06/02/2009 |
| 7499663 | Electrophotographic image forming apparatus and process cartridge An electrophotographic image forming apparatus for forming an image on a recording material, to which a process cartridge is detachably mountable, the apparatus, includes (a) a plurality of mounting portions for detachably mounting process cartridges, respectively, ... | 03/03/2009 |
| 7486905 | Developer cartridge including developer filling port cap and recycling method thereof A cartridge includes: a casing having a wall defining a developer accommodating portion inside the casing, a filling port being formed through the wall in fluid communication with the developer accommodating portion; a cylindrical wall portion formed on the wall at ... | 02/03/2009 |
| 7469113 | Sealing member, toner accommodating container and image forming apparatus A toner supply container detachably mountable to an image forming apparatus includes a container body with a discharge opening formed thereon. A sealing member, which unsealably seals the discharge opening, includes an engageable projection engageable with an engagi... | 12/23/2008 |
| 7437101 | Toner container and toner filling method A toner container which is mountable and removable at a main body of an image forming apparatus, the toner container comprising: at least one toner filling port provided in a casing body of the toner container; and a sealing member which covers the toner filling por... | 10/14/2008 |
| 7430384 | Sealing member, toner accommodating container and image forming apparatus A toner container detachably mountable to an image forming apparatus, includes a main body for containing toner; a sealing portion for sealing the toner discharge opening; locking projections for snap fitting engagement with holes provided in a cylindrical member of... | 09/30/2008 |
| 7412192 | Developer supply container If a user is not familiar with the operation for a developer supply container, the rotating operation for the developer supply container may be insufficient, so that developer supply container does not reach a predetermined operating position, with the result of abn... | 08/12/2008 |
| 7395016 | Toner cartridge having control board mounted therein and electrophotographic image forming apparatus using the same A toner cartridge has a control board mounted therein and an electrophotographic image forming apparatus using the same. The toner cartridge includes a toner tube having a mounting part on which a control board is mounted, a control board cover for covering the moun... | 07/01/2008 |
| 7386250 | Toner supply container and electrophotographic image forming apparatus A toner supply container is detachably mountable to an image forming apparatus. The container includes a toner accommodating portion to accommodate toner and has a supply opening to supply toner into the image forming apparatus, a feeding member to feed the toner in... | 06/10/2008 |