Patents Assigned to Kotobuki & Co., Ltd.
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Publication number: 20050265767Abstract: A composite writing tool wherein when the rear shaft is rotated relative to a front shaft, a cam sleeve rotates with the rear shaft, and the relative rotation occurring between the cam sleeve and the front shaft and an intermediate shaft causes one of writing shafts guided in the axial direction by the intermediate shaft to be selectively held in a protruding position, and when a knock sleeve is knocked, the cam sleeve is knocked to advance a lead of the writing shaft protruded by the cam sleeve. The rear part of the intermediate shaft is inserted into the cam sleeve, and engaging pieces of the rear part of the intermediate shaft penetrate a through hole formed in a perpendicular engaging wall formed in a tail cap fastened to the rear end of a rear shaft, and are engaged with the through hole. The cam sleeve and the knock sleeve are linked to each other through a recess elsewhere than the through hole in the engaging wall.Type: ApplicationFiled: May 13, 2005Publication date: December 1, 2005Applicant: Kotobuki & Co., Ltd.Inventors: Hidehei Kageyama, Tadao Odaka
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Patent number: 6939069Abstract: A composite writing utensil comprising a front barrel and a rear barrel, a cam body provided within the barrel unrotatable with respect to the rear barrel, and a slider unrotatable with respect to the front barrel and coupled to each of a plurality of writing shafts. The cam body includes a V-shaped cam projection projecting forward, a cam surface, and a restraining portion. The slider comprises a V-shaped cam projecting rearward, and a slidably-contacted surface extending along the cam that is urged against the cam surface. A relative rotation between front and rear barrels causes the slidably-contacted surface of the cam to slidably contact the cam surface and one of the cams to be restrained by the restraining portion, thus a point of the writing shaft coupled to the slider provided with the cam selectively projects from the point aperture of the barrel.Type: GrantFiled: June 8, 2004Date of Patent: September 6, 2005Assignee: Kotobuki & Co., Ltd.Inventor: Tadao Odaka
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Patent number: 6935799Abstract: In a stick-like object receiving member having safety precautions, which receives a stick-like object, a sufficient air passage is secured without exerting an influence on the size of the stick-like object or the receiving member. An eraser receiving member 16, which is the stick-like object receiving member, includes a cylindrical side portion 16b which engages with at least a part of the outer peripheral surface of an eraser 13, and surrounds at least a part of the outer peripheral surface of the eraser 13, and a bottom portion 16a which closes one end of the cylindrical side portion 16b. A slit 16e is formed in the cylindrical side portion 16b and bottom portion 16a so as to penetrate the cylindrical side portion 16b and bottom portion 16a in the axial direction, and the slit 16e serves as an air passage.Type: GrantFiled: August 18, 2003Date of Patent: August 30, 2005Assignee: Kotobuki & Co., Ltd.Inventor: Hidehei Kageyama
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Publication number: 20050166362Abstract: An eraser dispenser is provided which can store in a dispenser body an eraser longer than the overall length of the dispenser body. The eraser dispenser enables the eraser to be used without replacement with a new one for a long period of time. The eraser dispenser includes: a dispenser body which is enclosed by an outer circumferential wall having a distal opening and has a storing chamber capable of storing therein an eraser that is longer than the overall length of the dispenser body; and a cover which covers the dispenser body. The eraser dispenser further includes; an external operation member which partially projects from the outer circumferential wall and is operated from the outside of the dispenser body; a driving roller which is operated by the external operating member; a receiving member which is disposed opposite to the driving roller with the eraser held therebetween; and a stopper which prevents a rotary button as the external operation member from undergoing reverse turn.Type: ApplicationFiled: August 11, 2004Publication date: August 4, 2005Applicant: Kotobuki & Co., Ltd.Inventors: Tadashi Yamamoto, Yoshio Noguchi
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Patent number: 6918515Abstract: In a liquid container, the dimension of inside diameter of a liquid supply portion is not subject to any restriction, and also a liquid leakage suppressing mechanism that is not subject to any restriction by the viscosity of stored liquid is provided. A liquid container includes a body having a tank for storing a liquid; a supply mechanism which is connected to the tip end portion of the body and has a brush for supplying the liquid; and a drive mechanism for pushing out the liquid L in the tank T to the supply mechanism. A valve which is normally closed and can be opened only when the drive mechanism is operated is provided between the tank and the supply mechanism.Type: GrantFiled: September 3, 2003Date of Patent: July 19, 2005Assignee: Kotobuki & Co., Ltd.Inventor: Yoshio Noguchi
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Patent number: 6908246Abstract: A mechanical pencil includes a barrel, a lead feeding mechanism disposed in the barrel to tighten and feed a lead, and a lead holder disposed between the lead feeding mechanism and a tip end of the barrel. The lead holder includes a through hole through which the lead penetrates, holding portions for holding the lead, and a contact portion for contacting an inner peripheral face of the barrel. The holding portions include a first holding portion at a front portion of the lead holder and a second holding portion at a rear portion of the lead holder. When a length of the lead becomes shorter than a distance between the lead feeding mechanism and the tip end of the barrel, the first holding portion holds the short lead and the second holding portion holds a next lead tightened by the lead feeding mechanism.Type: GrantFiled: January 9, 2002Date of Patent: June 21, 2005Assignee: Kotobuki & Co., Ltd.Inventors: Hidehei Kageyama, Yoshio Noguchi
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Patent number: 6895640Abstract: To provide a clip attaching structure wherein a base portion of a clip is not exposed from an outside, and attaching can be performed with a good appearance. An outer sleeve has a rear sleeve and a cap connected to a rear side of the rear sleeve, and the clip has a ring-like base portion fixed to the outer sleeve, a connecting portion extending from the base portion, and a clip main body extending approximately in parallel with the rear sleeve from the connecting portion. At the rear end portion of the rear sleeve, a bent portion is formed, and in the bent portion, a notch penetrated by the connecting portion and a second notch facing to the notch by about 180 degrees are formed. The base portion of the clip passes through the portion in the diameter direction of the rear end opening connecting the notch and the second notch, and goes through the bent portion, and is inserted into an inside of the bent portion of the rear sleeve.Type: GrantFiled: December 3, 2002Date of Patent: May 24, 2005Assignee: Kotobuki & Co., Ltd.Inventor: Tadao Odaka
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Patent number: 6893179Abstract: A rotary bar-projecting mechanism for a push-button implement comprises: a first bar held axially slidably in a barrel, an operating means capable of making the first bar project from the front end of the barrel when pushed, a tail cap fixed to the barrel and internally provided with a counter rib, a push button capable of being turned relative to the tail cap and provided with a push rib that is aligned with the counter rib of the tail cap when the push button is at a predetermined angular position, and a second bar held in the push button, capable of being projected from the back end of the push button when the push button is turned, and restrained from turning.Type: GrantFiled: June 20, 2003Date of Patent: May 17, 2005Assignee: Kotobuki & Co., Ltd.Inventors: Hidehei Kageyama, Yoshio Noguchi
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Publication number: 20050100387Abstract: A composite writing utensil comprising a front barrel and a rear barrel, a cam body provided within the barrel unrotatable with respect to the rear barrel, and a slider unrotatable with respect to the front barrel and coupled to each of a plurality of writing shafts. The cam body includes a V-shaped cam projection projecting forward, a cam surface, and a restraining portion. The slider comprises a V-shaped cam projecting rearward, and a slidably-contacted surface extending along the cam that is urged against the cam surface. A relative rotation between front and rear barrels causes the slidably-contacted surface of the cam to slidably contact the cam surface and one of the cams to be restrained by the restraining portion, thus a point of the writing shaft coupled to the slider provided with the cam selectively projects from the point aperture of the barrel.Type: ApplicationFiled: June 8, 2004Publication date: May 12, 2005Applicant: Kotobuki & Co., Ltd.Inventor: Tadao Odaka
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Publication number: 20050074271Abstract: In a cartridge type stationery product including a body and a cartridge attachable to and detachable from the body, the cartridge is capable of being inserted from an opening of the body, a locking groove is formed on the body, and a locking protrusion which is inserted into the locking groove is formed on the cartridge, and the locking groove is constructed by a first groove portion extending in an axial direction from a vicinity of the opening, and a second groove portion extending from the first groove portion to form an angle with the first groove portion.Type: ApplicationFiled: July 22, 2004Publication date: April 7, 2005Applicant: Kotobuki & Co., Ltd.Inventors: Hidehei Kageyama, Tadao Odaka
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Patent number: 6837638Abstract: A capless holding device which does not use any removable caps but which can reliably move a medium between a projected position and a housed position is provided. The capless holding device includes a cylinder holding a refill that is movable between a projected position and a housed position. The cylinder includes a tip opening out of which a pen tip of the refill located at the projected position is projected and a housing section that seals the pen tip of the refill located at the housed position. A rotating cylinder is connected to the axial cylinder so as to relatively rotatively movable, an engaging projection integrally provided on the refill, a cam groove formed in the rotating cylinder to guide the engaging projection forward and backward in unison with rotation of the rotating cylinder, and a guide groove formed in the axial cylinder to guide the engaging projection in a rotating direction.Type: GrantFiled: April 21, 2004Date of Patent: January 4, 2005Assignee: Kotobuki & Co., Ltd.Inventor: Yoshio Noguchi
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Patent number: 6835016Abstract: A stick projecting device has a barrel as a case body comprising a front barrel and a rear barrel both of which are configured rotatably with regard to each other. A piston rod oval in section, having uncontinuous male thread portions is slidably fitted in the barrel. A driver having a female thread portion in mesh with the male thread portions is provided in the front barrel. A locking member that prevents the piston rod from turning is secured to the front barrel at a position forwardly of the driver. An inner cylinder is movably provided in the front barrel and the tip of the inner cylinder is able to be in abutment with a part of the front interior of the front barrel. A part of a stick that has been projected from the opening of the tip of the front barrel can be restored in the front barrel by a reverse turning operation of the rear barrel.Type: GrantFiled: May 31, 2002Date of Patent: December 28, 2004Assignee: Kotobuki & Co., LTDInventor: Yoshio Noguchi
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Publication number: 20040232160Abstract: To provide a container that can be easily configured and has good operability when opened and closed with one hand. The container includes a container body having an opening, and a lid body that can open and close the opening of the container body, wherein the container body has, near the opening, a journaling portion that supports the lid body rotatably around an axis orthogonal to an opening surface of the opening, while the lid body has a journaled portion that is journaled by the journaling portion, and a lid portion, and the lid body rotates around the journaling portion to allow the lid portion to move to a position for covering the opening and a position for exposing the opening.Type: ApplicationFiled: November 3, 2003Publication date: November 25, 2004Applicant: Kotobuki & Co., Ltd.Inventors: Hidehei Kageyama, Tadashi Keda
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Publication number: 20040213622Abstract: A rotary bar-projecting mechanism for a push-button implement comprises: a first bar held axially slidably in a barrel, an operating means capable of making the first bar project from the front end of the barrel when pushed, a tail cap fixed to the barrel and internally provided with a counter rib, a push button capable of being turned relative to the tail cap and provided with a push rib that is aligned with the counter rib of the tail cap when the push button is at a predetermined angular position, and a second bar held in the push button, capable of being projected from the back end of the push button when the push button is turned, and restrained from turning.Type: ApplicationFiled: June 20, 2003Publication date: October 28, 2004Applicant: Kotobuki & Co., Ltd.Inventors: Hidehei Kageyama, Yoshio Noguchi
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Patent number: 6783292Abstract: A double-chuck mechanical pencil comprises a barrel, a barrel cap detachably attached to a front end of the barrel, a lead tank inserted in the barrel, a feed chuck for feeding leads, combined with the lead tank, a sleeve bolster disposed on the front side of the feed chuck, and a holding chuck combined with the sleeve bolster. A holding chuck unit including the holding chuck and the sleeve bolster, and a feed chuck unit including the feed chuck and a sleeve can come into contact with each other in the barrel cap.Type: GrantFiled: October 7, 2002Date of Patent: August 31, 2004Assignee: Kotobuki & Co., Ltd.Inventors: Sachio Arai, Tadao Odaka
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Publication number: 20040161291Abstract: In a liquid container, it is made possible to store liquid that is overflowed by fluctuations in atmospheric pressure and thereby to prevent liquid leaks, and the whole quantity of the stored liquid is enabled to be used. The liquid container is provided with a body having a main tank in which liquid is stored; a supply outlet, located toward the tip of the body, for supplying the liquid; a guiding portion connecting the main tank and the supply outlet to guide the liquid from the main tank to the supply outlet; and a liquid reservoir having an air flow port communicating with the exterior and a liquid flow port communicating with the main tank or the guiding portion and an overflowing liquid flow path for storing liquid overflowing the main tank. The liquid is stored farther away from the supply outlet than the liquid flow port.Type: ApplicationFiled: November 20, 2003Publication date: August 19, 2004Applicant: Kotobuki & Co., Ltd.Inventors: Yoshio Noguchi, Hidehei Kageyama
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Patent number: 6755587Abstract: A direct-feed ballpoint writing implement includes a barrel internally provided with an ink tank, a grooved member placed in a front part of the barrel and provided with a groove for guiding air and ink, an ink feed member pressed in the grooved member, a barrel tip fixedly joined to a front end part of the grooved member, a ball holder inserted in the barrel tip and put on a front end part of the ink feed member, and a ball held in a front end part of the ball holder. A compression spring may be extended at least between the ink feed member and the ball in the ball holder.Type: GrantFiled: March 24, 2003Date of Patent: June 29, 2004Assignee: Kotobuki & Co., Ltd.Inventor: Makoto Fukushima
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Patent number: D500519Type: GrantFiled: May 11, 2004Date of Patent: January 4, 2005Assignee: Kotobuki & Co., Ltd.Inventor: Tadashi Keda
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Patent number: D491983Type: GrantFiled: October 24, 2003Date of Patent: June 22, 2004Assignee: Kotobuki & Co., Ltd.Inventor: Hiromichi Izushima
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Patent number: D495745Type: GrantFiled: December 8, 2003Date of Patent: September 7, 2004Assignee: Kotobuki & Co., Ltd.Inventor: Tadashi Keda