Bizarre Patents
A sealed crustless sandwich for providing a convenient sandwich without an outer crust which can be stored for long periods of time without a central filling from leaking outwardly.
PatentStorm News
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 |
| 8173032 | Measurement of etching Methods and apparatus for determining the extent of etching in material by locating a detector element adjacent to a portion of the material that is to be etched. The width of the element varies. The resistance of the element is measured upon etching the portion. | 05/08/2012 |
| 8173031 | Photoimageable nozzle members and methods relating thereto Nozzle members, such as for a micro-fluid ejection head, micro-fluid ejection heads, and a method for making the same. One such nozzle member includes a negative photoresist composition derived from a first di-functional epoxy compound, a relatively high molecular w... | 05/08/2012 |
| 8173030 | Liquid drop ejector having self-aligned hole A method for forming a self-aligned hole through a substrate to form a fluid feed passage is provided by initially forming an insulating layer on a first side of a substrate having two opposing sides; and forming a feature on the insulating layer. Next, etch an open... | 05/08/2012 |
| 8163187 | Process of producing liquid discharge head Provided is a process of producing a liquid discharge head having a substrate, a passage-forming member, and a patterned layer. The process includes providing a resin layer on a substrate; providing a resist pattern on the resin layer for patterning the resin layer;... | 04/24/2012 |
| 8137573 | Liquid ejection head, method for manufacturing liquid ejection head, and method for manufacturing structure A method for manufacturing a liquid ejection head including a substrate and a member, disposed above the substrate, having passages communicatively connected to discharge ports through which a liquid is ejected includes providing first solid layers made of a positiv... | 03/20/2012 |
| 8119019 | Method of fabricating filtered printhead ejection nozzle A method of fabricating a printhead ejection nozzle is provided which includes depositing sacrificial material on a planar substrate form a scaffold of the sacrificial material on the substrate, defining openings in the sacrificial material to the plane of the subst... | 02/21/2012 |
| 8114305 | Method of manufacturing substrate for liquid discharge head A method of manufacturing a silicon substrate for a liquid discharge head with a liquid supply opening formed therein includes: forming one processed portion by laser processing on the substrate from one surface of the substrate; expanding the one processed portion ... | 02/14/2012 |
| 8092700 | Method for manufacturing liquid discharge head A method for manufacturing liquid discharge heads having a substrate where energy generation elements that generate energy used for discharging liquid are formed, a wiring electrically connected to the energy generation elements, and a flow path communicating with d... | 01/10/2012 |
| 8070969 | Method of fabricating microelectromechanical systems devices A method of fabricating microelectromechanical systems devices is disclosed. A silicon substrate having a plurality of microelectromechanical systems elements formed on a first surface thereof is provided. A guard layer defining a plurality of recesses is applied to... | 12/06/2011 |
| 8043517 | Method of forming openings in substrates and inkjet printheads fabricated thereby A method of forming an opening through a substrate includes defining an area on a first surface of the substrate where the opening is to be formed, the area having a center region flanked by edge regions. A top layer having a substantially closed space located over ... | 10/25/2011 |
| 8043518 | Method of manufacturing nozzle plate, liquid ejection head and image forming apparatus The method of manufacturing a nozzle plate which includes a nozzle having a tapered section and a linear section includes the steps of: forming an etching stopper layer for stopping dry etching of a silicon substrate, on a first surface of the silicon substrate; for... | 10/25/2011 |
| 8038891 | Method of manufacturing nozzle plate and method of manufacturing liquid ejection head The method of manufacturing a nozzle plate includes: a lyophobic film forming step of preparing a nozzle plate having a recess-shaped counterbore section and a nozzle opened in a bottom surface of the counterbore section, and forming a lyophobic film on a surface of... | 10/18/2011 |
| 8029686 | Method of fabricating an ink jet nozzle with a heater element The invention relates to a method of fabricating an ink jet nozzle. The method includes the steps of depositing and etching a passivation layer on a silicon substrate having drive circuitry and an interlayer dielectric interconnect to form a first sacrificial scaffo... | 10/04/2011 |
| 8029685 | Liquid ejection head and its method of manufacture A method of manufacturing a liquid ejection head and a liquid ejection head capable of preventing corrosion of electrodes are provided. The method of manufacturing a liquid ejection head includes: a step of forming porous silicon areas in portions of a silicon subst... | 10/04/2011 |
| 8021562 | Method for manufacturing a filter substrate, inkjet recording head, and method for manufacturing the inkjet recording head A filter capable of separating or filtering micro foreign particles in a flow passage is provided. A first mask and a second mask are formed on a silicon substrate by dry etching. Before performing the dry etching, a resist of the first mask is subjected to a heat t... | 09/20/2011 |
| 8012364 | Ink jet recording head, producing method therefor and composition for ink jet recording head A method for producing an ink jet recording head having high durability and high ink resistance can enabling enable high-quality image recording by employing a material capable of reducing the internal stress and having satisfactory patterning characteristics. Such ... | 09/06/2011 |
| 8012363 | Metal film protection during printhead fabrication with minimum number of MEMS processing steps A method of fabricating a printhead having a hydrophobic ink ejection face, the method comprising the steps of: (a) providing a partially-fabricated printhead comprising a plurality of nozzle chambers and a nozzle plate having relatively hydrophilic nozzle surface, ... | 09/06/2011 |
| 7955509 | Manufacturing method of liquid discharge head and orifice plate There is disclosed a manufacturing method in which depths of individual liquid chambers can be set to be small. The manufacturing method is a manufacturing method of a liquid discharge head having a liquid chamber which communicates with a discharge port for dischar... | 06/07/2011 |
| 7938974 | Method of fabricating printhead using metal film for protecting hydrophobic ink ejection face A method of fabricating a printhead having a hydrophobic ink ejection face, the method comprising the steps of: (a) providing a partially-fabricated printhead comprising a plurality of nozzle chambers and a nozzle plate having relatively hydrophilic nozzle surface, ... | 05/10/2011 |
| 7938975 | Method for making a micro-fluid ejection device A method of etching a semiconductor substrate. The method includes the steps of applying a photoresist etch mask layer to a device surface of the substrate. A select first area of the photoresist etch mask is masked, imaged and developed. A select second area of the... | 05/10/2011 |
| 7935264 | Liquid discharge head and method of manufacturing the same A liquid discharge head includes a plurality of liquid chambers for pressurizing a liquid, the plurality of liquid chambers communicating with discharge ports respectively; and a plurality of piezoelectric elements provided in correspondence with the plurality of li... | 05/03/2011 |
| 7922922 | Ink jet print head manufacturing method and ink jet print head An object of this invention is to provide a manufacturing method that, by using a general-purpose semiconductor fabrication process, can easily manufacture an ink jet print head in which energy generating elements are complicatedly installed in the ink path. To this... | 04/12/2011 |
| 7871531 | Method of manufacturing liquid ejection head A method of manufacturing a liquid ejection head in which a pressure chamber for storing an ejection liquid is connected with an ink supply channel through a restrictor, includes the steps of: forming first spaces for the liquid supply channel and the pressure chamb... | 01/18/2011 |
| 7867407 | Method of manufacturing an ink-jet recording head An ink-jet recording head has a plate-shaped member including a first layer with a partition wall formed by a first etching process and defining a pressure chamber, an ink inlet passage and a common ink storage chamber, a second layer with a land formed by a second ... | 01/11/2011 |
| 7862734 | Method of fabricating nozzle assembly having moving roof structure and sealing bridge A method of fabricating an inkjet nozzle assembly having a seal member bridging between a moving portion and a stationary portion. The method includes the steps of: (a) providing a partially-fabricated printhead comprising a nozzle chamber sealed with a roof, (b) et... | 01/04/2011 |
| 7837886 | Heating element A method of making a printhead comprises forming a resistor strip in a heating region of the printhead. In a first portion of the heating region, a resistive layer is formed including a central resistor region interposed between two spaced apart conductive elements.... | 11/23/2010 |
| 7837887 | Method of forming an ink supply channel A method of forming an ink supply channel for an inkjet printhead comprises the steps of: (i) providing a wafer having a frontside and a backside; (ii) etching a plurality of frontside trenches into the frontside; (iii) filling each of the trenches with a photoresis... | 11/23/2010 |
| 7833426 | Features in substrates and methods of forming The described embodiments relate to features in substrates and methods of forming same. One exemplary embodiment can be a microdevice that includes a substrate extending between a first substrate surface and a generally opposing second substrate surface, and at leas... | 11/16/2010 |
| 7794613 | Method of fabricating printhead having hydrophobic ink ejection face A method of fabricating a printhead having a hydrophobic ink ejection face is provided. The method comprises the steps of: (a) providing a partially-fabricated printhead comprising a plurality of nozzle chambers and a relatively hydrophilic nozzle surface, the nozzl... | 09/14/2010 |
| 7767103 | Micro-fluid ejection assemblies A micro-fluid ejection assembly and method therefor. The micro-fluid ejection assembly includes a silicon substrate having a fluid supply slot therein. The fluid supply slot is formed by an etch process conducted on a substrate using, a first etch mask circumscribin... | 08/03/2010 |
| 7749397 | Low ejection energy micro-fluid ejection heads A micro-fluid ejection device structure and method therefor having improved low energy design. The devices includes a semiconductor substrate and an insulating layer deposited on the semiconductor substrate. A plurality of heater resistors are formed on the insulati... | 07/06/2010 |
| 7731861 | Liquid drop discharge head and manufacture method thereof, micro device, ink-jet head, ink cartridge, and ink-jet printing device A liquid drop discharge head includes a chip 21 that is formed by separation of a silicon wafer 20. The silicon wafer 20 has a first direction and a second direction which are mutually intersected. The chip 21 is separated from the silico... | 06/08/2010 |
| 7727411 | Manufacturing method of substrate for ink jet head and manufacturing method of ink jet recording head The present invention provides a manufacturing method of a substrate for an ink jet head including forming an ink supply opening to a silicon substrate, including (a) forming, at the back surface of the silicon substrate, an etching mask layer, which has an opening ... | 06/01/2010 |
| 7713429 | Method of manufacturing nozzle plate, and liquid ejection head and image forming apparatus comprising nozzle plate The method of manufacturing a nozzle plate comprises the steps of: applying a protective sheet to a first surface of a nozzle plate in which nozzles are to be formed; forming holes which pass through the nozzle plate and have bottoms inside the protective sheet, fro... | 05/11/2010 |
| 7666322 | Method of producing nozzle plate and method of producing liquid-droplet jetting apparatus For forming a group or rows of nozzles in a substrate of an ink-jet head, firstly, a laser irradiation source and a masking material in which a plurality of holes arranged in two rows are formed, are arranged on an upper side of a position at which one group of rows... | 02/23/2010 |
| 7595004 | Ink jet printhead and relative manufacturing process The chambers (42) and each corresponding ink feeding duct (56), made in a structural layer of photosensitive resin (38), are delimited by a flat bottom wall (36) made of a protective layer (34, 36) of tantalum and gold and an upper... | 09/29/2009 |
| 7588693 | Method of modifying an etched trench A process for facilitating modification of an etched trench is provided. The process comprises: (a) providing a wafer comprising an etched trench, the trench having a photoresist plug at its base; and (b) removing a portion of the photoresist by subjecting the wafer... | 09/15/2009 |
| 7585423 | Liquid discharge head and producing method therefor A liquid discharge head includes, on a same substrate, pressure generating chambers, nozzle apertures communicating with the pressure generating chambers through nozzle communicating pans, and a reservoir, wherein a cross-section area of the nozzle communicating par... | 09/08/2009 |
| 7578943 | Liquid discharge head and producing method therefor A loss in the rigidity of a substrate for a liquid discharge head having nozzles at a high density can be suppressed. A liquid discharge head includes plural pressure generating chambers respectively provided with pressure generating elements, plural nozzle aperture... | 08/25/2009 |
| 7560039 | Methods of deep reactive ion etching A method of substantially simultaneously forming at least two fluid supply slots through a thickness of semiconductor substrate from a first surface to a second surface thereof. The method includes the steps of applying a photoresist layer to the first surface of th... | 07/14/2009 |
