Patents by Inventor Kazuyuki Fujita
Kazuyuki Fujita has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20150369302Abstract: The present invention provides a friction plate that takes more air into a lubricating oil on a friction surface so as to reduce the shear resistance force of the lubricating oil interposed between friction materials, thereby achieving significantly reduced drag torque at the time of idling, as compared with a conventional friction plate, and a wet-type multiple-disc clutch provided with the friction plate.Type: ApplicationFiled: January 31, 2014Publication date: December 24, 2015Applicant: NSK-WARNER K.K.Inventors: Hideaki TAKABAYASHI, Yousuke IKEDA, Masanori OKADA, Masahiro KOBAYASHI, Osamu TANAKA, Fumimasa MURAMATSU, Yoshinori WATANABE, Masahiro YAMADA, Tsutomu KAWAI, Kazuyuki FUJITA
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Publication number: 20150345574Abstract: A ratchet type one-way clutch includes an outer race having a pocket, an inner race having a notch, a pawl member housed in the pocket to transmit torque between the inner race and the outer race, and having a tip portion engaging with the notch and a circular portion; and a spring urging the pawl member to the inner race is provided. A central angle of the circular portion is 180 degrees or greater. An angle between a segment between both ends of an opening of the circular arc portion and a segment between the circular portion of the pawl member and a contact point at which the tip portion engages with the notch is greater than 90 degrees, and an angle between the spring and a segment between the center of the circular portion and a center of the ratchet type one-way clutch is greater than 45 degrees.Type: ApplicationFiled: May 20, 2015Publication date: December 3, 2015Inventors: Tsutomu Kawai, Kazuyuki Fujita, Masahiro Yamada, Sousuke Kawai
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Publication number: 20150285319Abstract: A ratchet type one-way clutch is provided that includes an outer race having a pocket on an inner circumference thereof, an inner race arranged on an inner diameter side of the outer race so as to be coaxial therewith, the inner race having a notch on an outer circumference thereof, a pawl member housed in the pocket and engaged with the notch of the inner race to transmit torque between the inner race and the outer race, and a spring for urging the pawl member to the inner race. The ratchet type one-way clutch is provided with urging force stabilizing means for stabilizing an urging force of the spring.Type: ApplicationFiled: March 31, 2015Publication date: October 8, 2015Inventors: Tsutomu KAWAI, Kazuyuki FUJITA, Masahiro YAMADA, Sousuke KAWAI
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Patent number: 9102329Abstract: A tracking control apparatus is configured to include a detection unit that detects an object in front of a host vehicle, and a control unit that, when parallel traveling vehicles which travel in parallel with each other in front of the host vehicle are detected by the detection unit and in a case where a distance between the host vehicle and the parallel traveling vehicles is longer than a separate recognition distance by which a plurality of vehicles in the vehicle-width direction can be separately recognized, presumes that there exists a preceding vehicle between the parallel traveling vehicles and controls traveling of the host vehicle.Type: GrantFiled: June 15, 2012Date of Patent: August 11, 2015Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kazuyuki Fujita, Hiroki Goto
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Publication number: 20150112509Abstract: A tracking control apparatus is configured to include a detection unit that detects an object in front of a host vehicle, and a control unit that, when parallel traveling vehicles which travel in parallel with each other in front of the host vehicle are detected by the detection unit and in a case where a distance between the host vehicle and the parallel traveling vehicles is longer than a separate recognition distance by which a plurality of vehicles in the vehicle-width direction can be separately recognized, presumes that there exists a preceding vehicle between the parallel traveling vehicles and controls traveling of the host vehicle.Type: ApplicationFiled: June 15, 2012Publication date: April 23, 2015Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kazuyuki Fujita, Hiroki Goto
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Patent number: 7611606Abstract: The present invention provides a low-density neutral paper offering excellent opacity, opacity after printing and other advantageous printability properties despite high bulk, by containing, as a filler, precipitated calcium carbonate-silica composite having an average particle size of 30 ?m or less and produced by neutralizing a mixture of precipitated calcium carbonate and alkaline silicate to pH 7 to 9, wherein the ratio of precipitated calcium carbonate to silica (precipitated calcium carbonate/silica) is 30/70 to 70/30 in solid content by weight and the surface of precipitated calcium carbonate particles is covered with silica. In particular, the present invention provides a low-density printing paper, or an electrophotographic transfer paper offering excellent stiffness and copier suitability, by means of adjusting the filler content in paper to a range of 1 to 25 solid content percent by weight, or provides a neutral newsprinting paper by means of adjusting the filler content in paper to a range of 0.Type: GrantFiled: March 15, 2005Date of Patent: November 3, 2009Assignee: Nippon Paper Industries Co., Ltd.Inventors: Kazunari Soga, Dai Nagahara, Kazuyuki Fujita, Takashi Ochi, Koji Kutsuwa, Katsumasa Ono
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Publication number: 20070221350Abstract: The present invention provides a low-density neutral paper offering excellent opacity, opacity after printing and other advantageous printability properties despite high bulk, by containing, as a filler, precipitated calcium carbonate-silica composite having an average particle size of 30 ?m or less and produced by neutralizing a mixture of precipitated calcium carbonate and alkaline silicate to pH 7 to 9, wherein the ratio of precipitated calcium carbonate to silica (precipitated calcium carbonate/silica) is 30/70 to 70/30 in solid content by weight and the surface of precipitated calcium carbonate particles is covered with silica. In particular, the present invention provides a low-density printing paper, or an electrophotographic transfer paper offering excellent stiffness and copier suitability, by means of adjusting the filler content in paper to a range of 1 to 25 solid content percent by weight, or provides a neutral newsprinting paper by means of adjusting the filler content in paper to a range of 0.Type: ApplicationFiled: March 15, 2005Publication date: September 27, 2007Inventors: Kazunari Soga, Dai Nagahara, Kazuyuki Fujita, Takashi Ochi, Koji Kutsuwa, Katsumasa Ono
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Patent number: 7172062Abstract: A friction plate for a wet type multiplate clutch has a substantially ring-shaped core plate and a friction member attached to the core plate. The friction member has a surface which includes a passage formed on a surface of the friction member, the passage extending from an inner peripheral edge of the friction member to an outer peripheral edge of the friction member, and a groove having an opened end which opens to the inner peripheral edge of the friction member and a closed end which is closed at a middle of the surface of the friction member. A width of the groove decreases towards a direction to the outer peripheral edge from the inner peripheral edge of the friction member.Type: GrantFiled: August 31, 2004Date of Patent: February 6, 2007Assignee: NSK-Warner Kabushiki KaishaInventors: Shun Kitahara, Tomoyuki Miyazaki, Hiroaki Matsushima, Kazuyuki Fujita
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Publication number: 20060096813Abstract: In a brake band in which a bracket is coupled to an end portion of a curved strap and an apply pin comes into contact with a contact portion of the bracket, thereby generating a fastening force, an abrasion preventing means is provided between the contact portion of the bracket and the apply pin.Type: ApplicationFiled: October 26, 2005Publication date: May 11, 2006Inventor: Kazuyuki Fujita
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Publication number: 20050109576Abstract: A friction plate for a wet type multiplate clutch has a substantially ring-shaped core plate and a friction member attached to the core plate. The friction member has a surface which includes a passage formed on a surface of the friction member, the passage extending from an inner peripheral edge of the friction member to an outer peripheral edge of the friction member, and a groove having an opened end which opens to the inner peripheral edge of the friction member and a closed end which is closed at a middle of the surface of the friction member. A width of the groove decreases towards a direction to the outer peripheral edge from the inner peripheral edge of the friction member.Type: ApplicationFiled: August 31, 2004Publication date: May 26, 2005Inventors: Shun Kitahara, Tomoyuki Miyazaki, Hiroaki Matsushima, Kazuyuki Fujita
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Patent number: 6758311Abstract: A band braking device has an annular brake band having a frictional surface formed on the inner peripheral side thereof and a bracket fixed to an end portion thereof. Concave portions are formed on one of the bracket and the brake band, and convex portions are formed on the other to be engaged with the concave portions.Type: GrantFiled: March 24, 2003Date of Patent: July 6, 2004Assignee: NSK-Warner K.K.Inventors: Kazuyuki Fujita, Shigeki Umezawa
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Publication number: 20030188934Abstract: A band braking device has an annular brake band having a frictional surface formed on the inner peripheral side thereof and a bracket fixed to an end portion thereof. Concave portions are formed on one of the bracket and the brake band, and convex portions are formed on the other to be engaged with the concave portions.Type: ApplicationFiled: March 24, 2003Publication date: October 9, 2003Applicant: NSK-WARNER K.K.Inventors: Kazuyuki Fujita, Shigeki Umezawa
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Patent number: 6585096Abstract: In a friction plate obtained by adhering a plurality of friction material segments onto a core plate, and axial thickness of each of the friction material segment in areas including adjacent portions between the adjacent friction material segments is thinner than the other portion of the friction material segment.Type: GrantFiled: September 18, 2001Date of Patent: July 1, 2003Assignee: NSK-Warner K. K.Inventor: Kazuyuki Fujita
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Publication number: 20020043441Abstract: In a friction plate obtained by adhering a plurality of friction material segments onto a core plate, and axial thickness of each of the friction material segment in areas including adjacent portions between the adjacent friction material segments is thinner than the other portion of the friction material segment.Type: ApplicationFiled: September 18, 2001Publication date: April 18, 2002Applicant: NSK-Warner K.K.Inventor: Kazuyuki Fujita
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Patent number: 6328140Abstract: A double wrap brake band apparatus is used as a brake of an automatic transmission, in which an inner race can be held for a very short time by operating only a band corresponding to about one winding. A second anchor or second applier is provided in the vicinity of a connection between an intermediate band and outer bands. The anchor comprises an anchor bracket secured to either band and an anchor pin for supporting the anchor bracket, and the applier comprises an apply bracket secured to either band and a piston for urging the apply bracket. When a second apply bracket is provided, pistons for urging first and second apply brackets are operated independently. The pistons are assembled as a dual construction to save space. When a single piston is provided, respective urging rods or respective apply brackets are connected to the piston via springs.Type: GrantFiled: November 24, 1999Date of Patent: December 11, 2001Assignee: NSK-Warner K.K.Inventor: Kazuyuki Fujita
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Publication number: 20010008196Abstract: A band braking device has an annular brake band having a frictional surface formed on the inner peripheral side thereof and a bracket fixed to an end portion thereof. Concave portions are formed on one of the bracket and the brake band, and convex portions are formed on the other to be engaged with the concave portions.Type: ApplicationFiled: January 12, 2001Publication date: July 19, 2001Inventors: Kazuyuki Fujita, Shigeki Umezawa
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Patent number: 6260671Abstract: Provided is a brake band apparatus which is simple in mechanism and improved in the life of a frictional material, and particularly a double-wrap brake band apparatus provided with outer bands having a frictional material secured to the inner peripheral surface thereof, an intermediate band interposed between the outer bands and having a frictional material secured to the inner peripheral surfaces thereof, a coupling portion for coupling one end portion of each of the outer bands and one end portion of the intermediate band in the circumferential direction thereof, an apply bracket integral with or discretely from the coupling portion, a first anchor bracket on the free ends of the outer bands in the circumferential direction thereof, a second anchor bracket on the free end of the intermediate band in the circumferential direction thereof, and an actuator for giving a load in two directions to the apply bracket.Type: GrantFiled: September 11, 2000Date of Patent: July 17, 2001Assignee: NSK-Warner K.K.Inventor: Kazuyuki Fujita
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Patent number: 6253883Abstract: In the brake drum, a plurality of grooves are formed on the slid surface thereof in such a manner that the grooves respectively extend in parallel to the sliding direction of the brake drum.Type: GrantFiled: August 6, 1998Date of Patent: July 3, 2001Assignee: NSK-Warner Kabushiki KaishaInventors: Toshiaki Wakisaka, Kazuyuki Fujita
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Patent number: 6068093Abstract: In a sectional view of the protrusion of an anchor bracket, the side surface, on the side of an anchor pin, of the protrusion has an engaging protrusion substantially trapezoid in section at the middle of the width thereof, and its top portion, namely, a flat portion is brought into line contact with the anchor pin. Hence, the band brake is advantageous in that the brake band is stable in position, the contact region is improved in wear resistance, and the operation is stable.Type: GrantFiled: December 10, 1997Date of Patent: May 30, 2000Assignee: NSK-Warner Kabushiki KaishaInventors: Kazuyuki Fujita, Hideo Yanagihara
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Patent number: 6052428Abstract: The invention provides a medical radiographic apparatus constituted such that a swivel arm possessing an X-ray generator and an X-ray detection plane disposed to confront mutually with respect to the head of a patient is supported with a post through swivel means and a holding frame thereof in order to move the swivel arm about the head of the patient, the X-ray generator and X-ray detection plane are moved in mutually parallel reverse directions while synchronized, and irradiated X-rays are allowed to always enter the X-ray detection plane by passing through the same exposure region in the desired plane section in cooperation with the movement, the apparatus comprising:an ascending/descending main body from which the holding frame is extended, supported with the post so as to be free to move up and down, anda patient frame supported with the post so as to be free to move up and down, independently of the ascending/descending main body, having holding means for holding and fixing the head of the patient.Type: GrantFiled: April 30, 1997Date of Patent: April 18, 2000Assignee: J. Morita Manufacturing CorporationInventors: Kozo Nakano, Minoru Watanabe, Masanori Otsuka, Kazuyuki Fujita