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| Number | Title | Issue Date |
| 7441976 | Water-based ink composition for ballpoint pen and ballpoint pen comprising the same A water-based ink composition for ballpoint pen, which comprises at least a colorant, water, a shear-thinning tackifier and a thickening inhibitor, wherein a ratio (x) of a viscosity after evaporation of 40 wt % of water from the total ink amount to an initial ink v... | 10/28/2008 |
| 7311459 | Follower for non-aqueous ball point pen and non-aqueous ball point pen A follower for a nonaqueous ballpoint pen, comprising at least one poly-α-olefin which is a synthetic oil having a viscosity of 200 mPa·s or more at 40° C., wherein the total amount of poly-α-olefins is 80 mass % or more of all components, the viscosity at 40° ... | 12/25/2007 |
| 7179006 | Ink follower An ink follower which has stable followability regardless of a pen body specification, a flow rate for writing and a writing speed and does not cause back leaking of the ink originating in shortage in the ink follower in the middle of writing and scattering of the i... | 02/20/2007 |
| 7179005 | Ink follower for water-based ink ballpoint pen An ink follower for a ballpoint pen using a water-based ink in which a value of the test for oil separation (60° C., 24 hours) according to JIS K 2220-5.7-1993 is 0.5 to 12% and which has a viscoelasticity predominant in an elastic response or a value of tan δ of ... | 02/20/2007 |
| 7153053 | Dispenser for lip coloring and coating fluids Fluid material, including medication, dermatological fluids, cream eye shadow and lip-coloring material such as lip gloss, is stored in a reservoir. Rotating a collar with respect to the reservoir advances a piston therein to deliver lip coloring or other material t... | 12/26/2006 |
| 7056052 | Ink reservoir for writing instrument In order to provide an ink reservoir for a writing instrument which has satisfactory permeation resistance and moisture-absorption resistance against permeation of a solvent and absorption of moisture and which is excellent in a storing property of the ink with the ... | 06/06/2006 |
| 7048459 | Liquid ink writing instrument with a shape memory valve The liquid ink writing instrument has a body containing, from its rear end towards its front end, a reservoir for the ink and a front chamber containing a capillary element for transferring ink coming from the reservoir to a writing head. The front chamber communica... | 05/23/2006 |
| 7037019 | Ink-storing member for writing instrument An ink-storing member for a writing instrument which can inhibit deterioration in the ink caused by permeation of oxygen and nitrogen contained in air, inhibit leaking of the ink and generation of bubbles, enhance discharge stability of the ink, improve fragrance re... | 05/02/2006 |
| 6926458 | Ball-point pen refill For producing a pressurized ball-point pen refill the ball-point pen refill includes a tip, an ink storage tube and a tail plug, wherein ink is filled in the space of the ink storage tube relatively near to the tip, and a pressuring gas is filled in the space of the... | 08/09/2005 |
| 6837640 | Applicator An applicator comprising: a reservoir for holding therein an application liquid; a valve assembly disposed in a distal region of the reservoir; a tip disposed in front of the valve assembly; ... | 01/04/2005 |
| 6729787 | Applicator using pressurized air to aid in dispensing liquid An applicator has a tubular body containing a liquid to be dispensed. A non-return device is movably disposed in the tubular body rearwardly of and in contact with the liquid for preventing backflow of the liquid. A manually-displaceable piston member is displaceabl... | 05/04/2004 |
| 6655867 | Oily ink for writing instrument A writing instrument has an ink containment tube and a pen tip equipped at one end of the ink containment tube with an oily ink contained in the ink containment tube. The oily ink shows pseudo-plasticity fluidity and comprises a colorant, a resin, an orga... | 12/02/2003 |
| 6554521 | Applicator An applicator comprising: a reservoir for holding therein an application liquid; a valve assembly disposed in a distal region of the reservoir; a tip disposed in front of the valve assembly; the valve assembly comprising: a valve chamber having a forward opening; a valv... | 04/29/2003 |
| 6530708 | Ink follower composition for oil-based ballpoint pens An ink follower composition for oil-based ballpoint pens, comprising at least one organic solvent selected from the group consisting of a sparingly volatile organic solvent and a non-volatile organic solvent, a gelling agent comprising inorganic fine part... | 03/11/2003 |
| 6518329 | Liquid ink A non-erasable liquid ink for a marking instrument including a colorant and a solvent and having a water content of about 0-15% by weight and a viscosity of about 15 to 4,500 cps. Also disclosed is a marking instrument filled with an ink of such a viscosi... | 02/11/2003 |
| 6478496 | Ink follower for writing tool An ink follower for a writing tool arranged in close contact with an ink surface of a terminal portion of an ink reservoir opposite to a writing tip portion comprises a swollen gel formed from an oil-absorbable resin, a base oil of polybutene, and an alky... | 11/12/2002 |
| 6454481 | Ink follower in conjunction with ink in a writing instrument and writing instrument containing the same An ink follower for a writing tool comprises a swollen gel formed from an oil-absorbable resin and a base oil, i.e., a hardly volatile liquid and/or a nonvolatile liquid. The ink follower is arranged in contact with the ink surface of a writing tool such ... | 09/24/2002 |
| 6443647 | Ink follower piston for a ball-point pen, and a method of manufacturing the same A follower piston for a ball-point pen, the piston including an element in the form of a stable gel whose hardness measured by cone penetration lies in the range 100×10-1 mm to 400×10-1 mm, and a method for manufacturing the elemen... | 09/03/2002 |
| 6406204 | Oily ink for writing instrument An oily ink for writing instruments comprising e. colorant, f. resin, g. an organic solvent and h. a gelling agent, wherein the said gelling agent comprises a soluble gelling agent with the solubility of from about 0.1 to about 20% by weight at a temperature of ... | 06/18/2002 |
| 6267523 | Ink pen refill with diversely colored gel ink layers and method of manufacture An ink pen refill consists of a single writing point connected to an elongated barrel in which gel ink is stored in distinctly colored layers. At the proximal end of the barrel, just behind the most proximal color band of ink, a quantity of grease is inse... | 07/31/2001 |
| 6132124 | Ink follower for aqueous ballpoint pen using gel-like material and solid piece The present invention provides an ink follower for an aqueous ballpoint pen having an ink reservoir for directly preserving an ink, and this ink follower comprises at least a gel-like material having a predominantly viscous response and comprising a less ... | 10/17/2000 |
| 6075070 | Marking instrument including liquid ink A marking instrument includes a non-erasable ink including a colorant and a solvent having a water content of about 0-15% by weight and a viscosity of about 15 to 4,500 cps.... | 06/13/2000 |
| 6068422 | Ecologically beneficial refill for a pen including a level indicator and writeout scale A refill is provided that is packaged in a recyclable assembly of recyclable plastic and recyclable paper or cardboard. The refill is further constructed from recyclable plastic and uses soy resins for the ink. On a barrel of the ink refill is a graduated... | 05/30/2000 |
| 5709493 | Ballpoint pen having a backflow preventing mechanism A ballpoint pen for use with ink having thixotropic (shear viscosity decreasing properties) and a joint for regulating the flow of the ink to the pen's tip through an entrance in the tip. The joint includes a valve chamber which is disposed in an approxim... | 01/20/1998 |
| 5346324 | Dentifrice dispensing toothbrush with replaceable cartridge A dentifrice dispensing toothbrush is described which utilizes a compressible elastic button to pump a controlled quantity of dentifrice material from a replaceable cartridge to the brush head. The toothbrush locks itself to prevent further pumping of den... | 09/13/1994 |
| 5249875 | Marker with pump and follower A marker including a cylindrical ink reservoir formed in a body, a slide plug inserted into the ink reservoir, a pen element slidably installed at the end of the body in the axial direction, and an elastic sealing member for pressuring ink and sending it ... | 10/05/1993 |
| 5222824 | Regulated ink flow control system for pen A reservoir pen includes a valve operated by the pen nib (4) to allow ink to pass to the nib, the ink flow rate being controlled by a flow restricting device (8) located between a primary ink reservoir chamber (2) enclosed within the pen barrel (1) and a ... | 06/29/1993 |
| 5087143 | Filling toothbrush A filling toothbrush having a hollow handle providing a supply space for toothpaste. A toothpaste dischage aperture is provided on the outer end of the handle beneath the bristles. A conduit inside the handle connects the aperture to the supply space at t... | 02/11/1992 |
| 5026192 | Liquid applicator A liquid container comprising a main member, a cylinder and a container body. The main member has a barrel, a head fitted in an upper portion of the barrel, a discharge section provided at an upper end of the head, a passage cylinder communicating with th... | 06/25/1991 |
| 5020930 | Dispenser with reduction transmission A dispenser for viscous material, such as shoe polish, comprising a substantially cylindrical reservoir having near one reservoir end a filling discharge passage terminating in a distribution channel extending through a porous applicator. At least a part ... | 06/04/1991 |
| 4984922 | Liquid container The present invention relates to a toilet implement in which a shaft is rotated with respect to a piston member provided between the shaft and a liquid supply means whereby a cylinder is moved up and down to supply a liquid from a container body within a ... | 01/15/1991 |
| 4976563 | Container type toilet implement with air escape passage A container type toilet implement has a container, and a bottom cover provided liquidtightly and elevationally movable at the lower portion of the container, the bottom cover having air escape grooves. A cylinder is erected upward from a neck of the conta... | 12/11/1990 |
| 4973180 | Pen with slide plug and valve A tool for applying a liquid to a predetermined portion is disclosed. The tool has a main ink reservoir and a sub-ink reservoir. The sub-ink reservoir communicates with a pen body. The main ink reservoir communicates with the sub-ink reservoir through a v... | 11/27/1990 |
| 4963046 | Toothbrush A toothbrush comprises a grip portion and a brush base portion having bristles implanted thereon. The bristles each have a spherical tip. The grip portion has a storage chamber for a fluid material. A communicating passage through which the fluid material... | 10/16/1990 |
| 4954002 | Writing instrument with membrane vent and their manufacture In a writing instrument including an ink reservoir and an air hole, the air hole is spanned by a barrier formed as a porous non-absorbent ink repellent membrane of substantially uniform pore size. The barrier is non-porously sealed, for example by direct ... | 09/04/1990 |
| 4937594 | Large volume pen A large volume recording pen suitable for use in graphic recorders and the like includes an elongated cylindrical body defining an internal ink reservoir. A cap is secured to the upper portion of the cylindrical body while the lower portion defines a tape... | 06/26/1990 |
| 4787765 | Dentifrice dispensing toothbrush A dentifrice dispensing toothbrush is described which stores dentifrice material in its handle and deposits a controlled quantity of the stored material directly onto the top of the brush surface. The toothbrush comprises (1) a housing which includes a ha... | 11/29/1988 |
| 4708267 | Dispenser for pasty compositions A dispenser for pasty compositions (M) having a housing (1) in which there is arranged a piston (2) which is displaceable only in the emptying direction. An outer actuating handle is provided on a wall (10) of the head piece (K). The wall can be pressed i... | 11/24/1987 |
| 4695177 | Dentifrice dispensing toothbrush A dentifrice dispensing toothbrush is described which stores dentifrice material in its handle and deposits a controlled portion of the stored material directly onto the top of the brush surface. The toothbrush comprises (1) a housing which includes a han... | 09/22/1987 |
| 4692047 | Brush for applying material in liquid or emulsion form A brush for applying liquid or emulsion material such as toothpaste, hair-dye, cleaning material, etc., has a handle, a rod having bristles, sponge, etc. at its head and a pumping mechanism accommodated in the handle. The rod is slidably held, at its rear... | 09/08/1987 |
