| MITSUBISHI PENCIL CO., LTD. Patent applications |
| Patent application number | Title | Published |
|---|
| 20120057218 | LIQUID FOR ELECTROPHORETIC DISPLAY AND ELECTROPHORETIC DISPLAY DEVICE AND ELECTRONIC DEVICE PREPARERD USING THE SAME - A liquid for electrophoretic display which makes it possible to display a black color having a low reflectance or a color having a high color saturation and a white color having a high reflectance and display them at high contrast and which inhibits coagulation of white fine particles and is excellent in stability can be prepared by using a liquid for electrophoretic display containing at least white fine particles, resin particles colored by a dye and/or a pigment and a liquid phase dispersion medium, wherein fine particles in which a difference in a refractive index from the liquid phase dispersion medium is 0 to 0.05 are contained and have an average particle diameter of 50 to 500 nm. | 03-08-2012 |
| 20120039663 | BALLPOINT PEN TIP, BALLPOINT PEN REFILL, BALLPOINT PEN, AND METHOD OF MANUFACTURING BALLPOINT PEN TIP - Provided are a ballpoint pen tip which can, even if ink having properties which assures that the amount of supply of the ink to the pen tip by shear of a writing ball is sufficient is adopted, prevent partially faint written traces from occurring and provide smooth writing, a ballpoint pen refill, a ballpoint pen, and a method of manufacturing a ballpoint pen tip. A triangular pyramid-shaped recess ( | 02-16-2012 |
| 20110297305 | COLORING COMPOSITION AND COLORING METHOD - The present invention provides a coloring composition which comprises pigment particles whose average particle size is not more than 200 nm and binder polymer particles. The composition permits the formation of a thin and uniform colored and coated layer on the surface of a fibrous structure without forming any color spot and without impairing the aesthetic properties and the flexibility of the fibrous structure and it has a good color-developing ability and excellent fastness of color. The method for coloring a fibrous structure using this composition permits the coloration of even a mixed material using a single coloring composition and at a single coloration step and the method is quite simple, it can ensure a high working efficiency, a high energy efficiency and quite effective use of water resources and it is free of any environmental pollution. | 12-08-2011 |
| 20110002728 | MECHANICAL PENCIL - A chuck unit ( | 01-06-2011 |
| 20100322695 | MECHANICAL PENCIL - It is arranged that a writing lead ( | 12-23-2010 |
| 20100266325 | MECHANICAL PENCIL | 10-21-2010 |
| 20100254746 | MECHANICAL PENCIL | 10-07-2010 |
| 20100239351 | MECHANICAL PENCIL | 09-23-2010 |
| 20100232863 | MECHANICAL PENCIL | 09-16-2010 |
| 20100230833 | Liquid Cartridge - A liquid cartridge comprises a vessel body for containing liquid, the vessel body comprising a plurality of surfaces, an oxygen outlet provided on one surface among the plurality of surfaces of the vessel body, and an oxygen input provided on a surface other than a furthest surface from the surface on which the oxygen outlet is formed among the plurality of surfaces of the vessel body. | 09-16-2010 |
| 20100221204 | LIQUID COSMETIC - Provided is a liquid cosmetic comprising at least an inorganic pigment, a dispersant, a film forming agent and water, wherein the dispersant is a homopolymer or a copolymer obtained by polymerizing a raw material monomer of at least one compound selected from acrylic acid, methacrylic acid or (C | 09-02-2010 |
| 20100192966 | Resin composition for a liquid container and a liquid container composed thereof - A process for producing a liquid container that is good in a gas barrier property, transparency, and water repellency. | 08-05-2010 |
| 20100099000 | Separator for Fuel Cell and Production Process for the Same - This invention provides a separator for a fuel battery, which has been improved in battery properties by controlling the wettability of the separator for a fuel battery, and a process for producing the same. The separator for a fuel battery is a separator (A) for a fuel battery, comprising at least a carbon material, and a concave-convex part, which, upon irradiation treatment with a YAG laser device ( | 04-22-2010 |
| 20090283033 | Liquid Applicator - A liquid applicator includes a liquid pressing mechanism (liquid pressing means) for pressurizing an application liquid inside a main body so as to supply application liquid to an applying member by the pressing of the liquid pressing mechanism. The applying member is made of an elastic material and is formed with a communication path of a passage hole for communication between the inside and outside of main body, and an applying portion of the applying member is formed projected further forward from an ejection opening of communication path. The liquid applicator that can simply apply an application liquid, even it is high in viscosity, over a wide area. | 11-19-2009 |
| 20090274938 | FUEL RESERVOIR FOR FUEL CELL - The fuel reservoir for a fuel cell is a fuel reservoir detachably connected with a fuel cell main body, and it is equipped with a fuel-storing vessel of a tube type for storing a liquid fuel and a fuel discharge part; the fuel discharge part is provided with a valve for sealing communication between the inside and the outside of the above fuel-storing vessel. The valve assumes a structure in which a slit is formed in an elastic material and a structure in which a valve member is pressed by a resilient body, and is opened by inserting a fuel-supplying member. | 11-05-2009 |
| 20090255439 | Oil-Based Ink Composition for Writing Utensil and Writing Utensil Employing the Same - The present invention provides an ink composition containing an olefinic wax dispersion added so as to impart smooth writing properties without causing starving at the starting of writing, and the ink composition has noticeably improved stability over time. The present invention provides an oil-based ink composition comprising a solvent selected from the group consisting of a monohydric alcohol, a polyhydric alcohol and glycol ether, and a colorant selected from the group consisting of a pigment, a dye, and a mixture of the pigment and the dye, the oil-based ink composition further comprising a dispersion of reprecipitated olefinic wax particles. | 10-15-2009 |
| 20090165261 | Clip for a Writing Implement - A ballpoint pen body | 07-02-2009 |
| 20090116895 | Cosmetic Storage Type Applicator - In the cosmetic storage type applicator having a structure for supplying a cosmetic to an applying part | 05-07-2009 |
| 20090075045 | METHOD OF MOULDING COMPOSITE MEMBER, AND COMPOSITE MEMBER - A method of moulding a composite member and a composite member are provided in which a convex part can be formed at one member by moulding the other member integrally to the one member. A concave part | 03-19-2009 |
| 20090049625 | COLORING COMPOSITION AND COLORING METHOD - The present invention provides a coloring composition which comprises pigment particles whose average particle size is not more than 200 nm and binder polymer particles. The composition permits the formation of a thin and uniform colored and coated layer on the surface of a fibrous structure without forming any color spot and without impairing the aesthetic properties and the flexibility of the fibrous structure and it has a good color-developing ability and excellent fastness of color. The method for coloring a fibrous structure using this composition permits the coloration of even a mixed material using a single coloring composition and at a single coloration step and the method is quite simple, it can ensure a high working efficiency, a high energy efficiency and quite effective use of water resources and it is free of any environmental pollution. | 02-26-2009 |
| 20090023039 | Fuel Reservoir for Fuel Cell - The fuel reservoir for a fuel cell is a fuel reservoir detachably connected with a fuel cell main body, and it is equipped with a fuel-storing vessel of a tube type for storing a liquid fuel and a fuel discharge part; the fuel discharge part is provided with a valve for sealing communication between the inside and the outside of the above fuel-storing vessel. The valve assumes a structure in which a slit is formed in an elastic material and a structure in which a valve member is pressed by a resilient body, and is opened by inserting a fuel-supplying member. | 01-22-2009 |
| 20080311460 | Fuel Cartridge - Provided is a fuel cartridge detachably connected with a fuel cell main body, wherein the fuel cartridge is equipped with a fuel-storing vessel for storing a liquid fuel, a fuel discharge part and a follower which seals the liquid fuel and moves as the liquid fuel is consumed at the rear end of the liquid fuel; a follower auxiliary member which has no fluidity and is insoluble in the liquid fuel is inserted into the follower; and at least one protruding part is formed at an upper end part of the follower auxiliary member. | 12-18-2008 |
| 20080292915 | Fuel Reservoir for Fuel Cell - A fuel reservoir for a fuel cell detachably connected with a fuel cell main body is constituted from a fuel storing vessel of a tube type for storing a liquid fuel, a fuel discharge part and a follower which seals the liquid fuel and moves as the liquid fuel is consumed at the rear end of the liquid fuel. The inside of the fuel storing vessel includes a fuel storing chamber at least hermetically sealed with the follower and a pressurizing chamber filled with a means for pressing the follower staying in a state in which it is completely separated from the ambient air and hermetically sealed. The fuel reservoir for a fuel cell makes it possible to prevent boiling, bubbling and spouting of the liquid fuel and to stably supply the liquid fuel directly to a fuel cell main body. | 11-27-2008 |
