Patents by Inventor Hiroshi Mizukami
Hiroshi Mizukami 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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Patent number: 5722524Abstract: A clutch cover assembly 10 is used with clutch friction disks of a dry multi-disk clutch 1, and is provided with a diaphragm spring 30, a clutch cover 28 and a support structure 31. The outer periphery portion of the diaphragm spring 30 loads the clutch friction disks. The support structure 31 includes a first annular disk-like ring member 35 possessing a first ring main body 38 which contacts a portion of the diaphragm spring 30 from the clutch cover 28 side and a seating portion 40 which extends from the first ring main body 38 and seats against the clutch cover 28, a second annular disk-like ring member 36 possessing a second ring main body which contacts the diaphragm spring 30 on the side opposite the first annular disk-like ring member 35, and bolts 37 for fixing the first and second annular disk-like annular disk-like ring members 35 and 36 to the clutch cover 28. One purpose of the invention is to suppress clutch cover wear caused by annular disk-like annular disk-like wire ring members.Type: GrantFiled: December 12, 1996Date of Patent: March 3, 1998Assignee: Exedy CorporationInventors: Hiroshi Mizukami, Yoshinobu Fukuda
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Patent number: 5671834Abstract: The clutch cover assembly comprises a clutch cover, a pressure plate, a washer-type spring and a lever member. The clutch cover is fixed to a flywheel. The pressure plate is located within said clutch cover and is fashioned with a pressing surface for clamping facings against the flywheel. The washer-type spring engages the pressure plate to the flywheel. The lever member, supported by the clutch cover, is for engaging the pressure plate in combination with the washer-type spring to the flywheel and for releasing engaging loads of the washer-type spring from the pressure plate.Type: GrantFiled: May 16, 1996Date of Patent: September 30, 1997Assignee: Kabushiki Kaisha Daikin SeisakushoInventors: Hiroshi Mizukami, Hiroshi Uehara, Shinichi Okada
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Patent number: 5638932Abstract: A clutch cover assembly 10 is used with clutch friction disks of a dry multi-disk clutch 1, and is provided with a diaphragm spring 30, a clutch cover 28 and a support structure 31. The outer periphery portion of the diaphragm spring 30 loads the clutch friction disks. The support structure 31 includes a first annular disk-like annular ring member 35 possessing a first ring main body 38 which contacts a portion of the diaphragm spring 30 from the clutch cover 28 side and a seating portion 40 which extends from the first ring main body 38 and seats against the clutch cover 28, a second annular disk-like annular ring member 36 possessing a second ring main body which contacts the diaphragm spring 30 on the side opposite the first annular disk-like annular ring member 35, and bolts 37 for fixing the first and second annular disk-like annular disk-like annular ring members 35 and 36 to the clutch cover 28. One purpose of the invention is to suppress clutch cover wear caused by annular disk-like wire rings.Type: GrantFiled: May 10, 1995Date of Patent: June 17, 1997Assignee: EXEDY CorporationInventor: Hiroshi Mizukami
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Patent number: 5586633Abstract: A clutch cover assembly is used for urging a friction member connected to an output member against an input rotation member and for releasing urging on the input rotation member. The clutch cover assembly comprises a clutch cover, a pressure plate, an urging member, a support mechanism and a movement regulation mechanism. The clutch cover is fixed to the input rotation member. The pressure plate is located within the clutch cover and urges the friction member. The urging member urges the pressure plate toward the friction member. The support mechanism is movable toward the friction member and supports the urging member. The movement regulation mechanism moves the support member toward the friction member according to wear displacement of the friction member.Type: GrantFiled: April 6, 1995Date of Patent: December 24, 1996Assignee: Kabushiki Kaisha Daikin SeisakushoInventors: Hiroshi Mizukami, Norihisa Uenohara, Hiroshi Takeuchi
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Patent number: 5570768Abstract: The clutch cover assembly comprises a clutch cover, a pressure place, a fulcrum ring, a diaphragm spring, and a diaphragm spring posture maintenance mechanism. The maintenance mechanism includes an adjustment mechanism which is composed with a pair of wedge mechanisms inclined surfaces of which extend in the circumferential direction and keep in contact with each other, and a spring for urging one of the wedge mechanisms against the other in the circumferential direction so as to move either one of the wedge mechanisms in the axial direction. Since adjustment mechanism functions by the circumferential wedge mechanisms, it is possible to accurately maintain the diaphragm spring posture without being affected by the engine rotation speed.Type: GrantFiled: February 22, 1995Date of Patent: November 5, 1996Assignee: Kabushiki Kaisha Daikan SeisakushoInventors: Norihisa Uenohara, Hiroshi Mizukami
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Patent number: 5551547Abstract: The clutch cover assembly comprises a clutch cover, a pressure plate, a washer-type spring and a lever member. The clutch cover is fixed to a flywheel. The pressure plate is located within said clutch cover and is fashioned with a pressing surface for clamping facings against the flywheel. The washer-type spring engages the pressure plate to the flywheel. The lever member, supported by the clutch cover, is for engaging the pressure plate in combination with the washer-type spring to the flywheel and for releasing engaging loads of the washer-type spring from the pressure plate.Type: GrantFiled: December 19, 1994Date of Patent: September 3, 1996Assignee: Kabushiki Kaisha Daikin SeisakushoInventors: Hiroshi Mizukami, Hiroshi Uehara, Shinichi Okada
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Patent number: 5513736Abstract: A clutch cover assembly having a clutch cover fixed to the input rotation member of an engine; a pressure plate disposed within the clutch cover, having a pressing surface for clutching one side of a friction member; a support member disposed opposite the pressing surface side of the pressure plate being non-rotatable with respect to the pressure plate and movable in the axial direction; a pressing member urging the pressure plate toward the input rotation member via the support member, the pressing member and the support member having a predetermined position relative each other initially; a wear compensation device disposed between the pressure plate and the support member, which restrictively supporting the support member at the predetermined position, and displacing the support member with respect to the pressure plate and thereby returning the support member to the predetermined position with respect to the pressing member after the support member and the pressure plate were displaced from the predetermiType: GrantFiled: March 1, 1995Date of Patent: May 7, 1996Assignee: Kabushiki Kaisha Daikin SeisakushoInventor: Hiroshi Mizukami
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Patent number: 5501310Abstract: A clutch device comprises an input part 3 to which power from a crankshaft 2 is inputted, an output part disposed concentrically with the input part 3 and connectable to an input shaft of a transmission, a clutch body 5, a pressure plate 40, and a main cone spring 41. The clutch body 5 has friction discs 20 and 21 connected to the input part 3 and a driven plate 31 connected to the output part 4. The pressure plate 40 presses the friction discs 20 and 21 and the driven plate 31 against each other. The main cone spring 41 urges the pressure plate 40 so that the friction discs 20 and 21 and the driven plate 31 are pressed against each other. Further, the friction disc 21 is provided with serrations or teeth 21a on an inner radial surface thereof. The input part 3 is provided with retractable gear teeth 23 which engage the teeth 21a to allow for rotation of the friction disk 21 with the input part 3 in one rotational direction but not in the other rotational direction.Type: GrantFiled: August 11, 1994Date of Patent: March 26, 1996Assignee: Kabushiki Kaisha Daikin SeisakushoInventors: Koji Kajitani, Hiroshi Mizukami, Norihisa Uenohara
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Patent number: 5501312Abstract: A clutch cover assembly 3 having a disk-shaped clutch cover 4, an annular pressure plate 5, a cone spring 6, and a diaphragm spring 7. The pressure plate 5 is disposed in the clutch cover 4 and has a pressing surface 5a. The cone spring 6 is disposed on the opposite side of the pressure plate 5 in the clutch cover 4, and has its radial inner end supported on the clutch cover and its radial outer end biasing the pressure plate 5. Within the clutch cover, a hardened support member coupled to the cover is provided to engage at least one inner portion of the cone spring 6 in order to minimize wear associated with engagement with the spring 6 as it moves in response to movement of the pressure plate 5. The hardened support member is provided in the present invention is a number of forms. In one embodiment the hardened support member is integrally formed with the clutch cover 4.Type: GrantFiled: August 16, 1994Date of Patent: March 26, 1996Assignee: Kabushiki Kaisha Daikin SeisakushoInventors: Hiroshi Mizukami, Koji Kajitani, Keisuke Fujimoto, Norihisa Uenohara
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Patent number: 5431268Abstract: A clutch cover assembly is used for urging a friction member connected to an output member against an input rotation member and for releasing urging on the input rotation member. The clutch cover assembly comprises a clutch cover, a pressure plate, an urging member, a support mechanism and a movement regulation mechanism. The clutch cover is fixed to the input rotation member. The pressure plate is located within said clutch cover and urges the friction member. The urging member urges the pressure plate toward the friction member. The support mechanism is movable toward the friction member and supports the urging member. The movement regulation mechanism moves the support member toward the friction member according to wear displacement of the friction member.Type: GrantFiled: September 7, 1993Date of Patent: July 11, 1995Assignee: Kabushiki Kaisha Daikin SeisakushoInventors: Hiroshi Mizukami, Norihisa Uenohara, Hiroshi Takeuchi
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Patent number: 5419418Abstract: The clutch cover assembly comprises a clutch cover, a pressure plate, a fulcrum ring, a diaphragm spring, and a diaphragm spring posture maintenance mechanism. The maintenance mechanism includes an adjustment mechanism which is composed with a pair of wedge mechanisms inclined surfaces of which extend in the circumferential direction and keep in contact with each other, and a spring for urging one of the wedge mechanisms against the other in the circumferential direction so as to move either one of the wedge mechanisms in the axial direction. Since adjustment mechanism functions by the circumferential wedge mechanisms, it is possible to accurately maintain the diaphragm spring posture without being affected by the engine rotation speed.Type: GrantFiled: June 30, 1993Date of Patent: May 30, 1995Assignee: Kabushiki Kaisha Daikin SeisakushoInventors: Norihisa Uenohara, Hiroshi Mizukami
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Patent number: 5400887Abstract: The clutch cover assembly comprises a clutch cover, a pressure plate, a washer-type spring and a lever member. The clutch cover is fixed to a flywheel. The pressure plate is located within said clutch cover and is fashioned with a pressing surface for clamping facings against the flywheel. The washer-type spring engages the pressure plate to the flywheel. The lever member, supported by the clutch cover, is for engaging the pressure plate in combination with the washer-type spring to the flywheel and for releasing engaging loads of the washer-type spring from the pressure plate.Type: GrantFiled: August 6, 1993Date of Patent: March 28, 1995Assignee: Kabushiki Kaisha Daikin SeisakushoInventors: Hiroshi Mizukami, Hiroshi Uehara, Shinichi Okada
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Patent number: 5069322Abstract: A clutch cover assembly for a pull-type clutch, in which a threaded part an axis of which is identical with an axis of clutch is formed on a pressure plate, a lever height adjusting ring contacting with an intermediate fulcrum point of a release lever is screwed onto the threaded part of the pressure plate, the lever height adjusting ring is relatively rotated and moved in its axial direction by means of an elastic restoring force of a spiral spring or by means of a change of engine torque and a ratchet mechanism, and a lever height is automatically increased according to a wear amount of a facing.Type: GrantFiled: July 9, 1990Date of Patent: December 3, 1991Assignee: Kabushiki Kaisha Daikin SeisakushoInventors: Hiroshi Mizukami, Heiji Fukutake
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Patent number: 4967892Abstract: A clutch disc including a disc-like annular facing members arrange to front on each other and a cushioning plate corrugated in circumferential direction. Stiffening plates which are disc-like annular bodies having inside and outside diameters approximately identical with those of facing members and on which slotted holes extending nearly in radial direction are made at plural places in circumferential direction, are glued to fronting surfaces of the facing members. The cushioning plate is disposed between the fronting stiffening plates to make convex portions on its both surfaces contact with portions located between the slotted holes of the stiffening plates, and is fastened by rivets to the contacting portions.Type: GrantFiled: October 27, 1989Date of Patent: November 6, 1990Assignee: Kabushiki Kaisha Daikin SeisakushoInventors: Hiromi Tojima, Hiroshi Mizukami
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Patent number: 4902314Abstract: Disclosed herein is a gas filter particularly suitable for the filtration of dry gases used in the manufacture of the semiconductors. The gas filter comprises a ceramic honeycomb structural body with numerous gas flow holes and a fine ceramic film coated onto the inner surfaces of the gas flow holes. Filtration is performed by passing the gas to be filtered from the outer peripheral surface of the honeycomb structural body to the gas flow holes.Type: GrantFiled: May 22, 1989Date of Patent: February 20, 1990Assignees: Hidetoshi Nakajima, Hiroshi Mizukami, Kuniaki WatanabeInventors: Hiroshi Mizukami, Hideo Tukazaki
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Patent number: D392655Type: GrantFiled: February 13, 1997Date of Patent: March 24, 1998Assignee: Exedy CorporationInventor: Hiroshi Mizukami
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Patent number: D392656Type: GrantFiled: February 13, 1997Date of Patent: March 24, 1998Assignee: Exedy CorporationInventor: Hiroshi Mizukami
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Patent number: D395901Type: GrantFiled: February 13, 1997Date of Patent: July 7, 1998Assignee: Exedy CorporationInventor: Hiroshi Mizukami