Patents by Inventor Masaru Deguchi
Masaru Deguchi 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: 8104971Abstract: It is a cage that is formed of a resin and that holds balls serving as rolling elements. The cage includes an annular base portion, and a plurality of claw portions that are formed to be arranged at constant intervals on the circumference of the base portion and to protrude therefrom. A pocket for accommodating the ball is formed between each pair of adjacent ones of the claw portions. In the resin cage for a ball bearing, thinning recesses are formed in end parts 11a of the claw portions and a rear surface of the base portion, respectively.Type: GrantFiled: August 27, 2008Date of Patent: January 31, 2012Assignee: JTEKT CorporationInventors: Yoshito Takada, Katsuyuki Harada, Youichi Tsuzaki, Toshihiro Hakata, Masaru Deguchi
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Patent number: 8047724Abstract: A wheel bearing apparatus includes a roller bearing, an inner shaft having an outer circumferential surface to which an inner ring of the roller bearing is installed, a coupler ring attached to an end portion of the inner shaft, and a caulked portion provided in an end portion of the inner shaft so as to fix the coupler ring and the roller bearing to the inner shaft so as to be immovable in an axial direction of the inner shaft. An outer diameter of the coupler ring is set smaller than a diameter of a shoulder portion of the inner ring. Alternatively, a protruding portion is provided in any one of opposing end surfaces of the coupler ring and the inner ring, whereby the coupler ring is arranged away from a seal member. Accordingly, it is possible to avoid an interference of the coupler ring with the seal member.Type: GrantFiled: March 26, 2007Date of Patent: November 1, 2011Assignee: JTEKT CorporationInventors: Tsuyoshi Kamikawa, Yoshito Takada, Masaru Deguchi, Ken Adachi, Youichi Tsuzaki, Seiji Yamamoto, Changxin Yu, Masao Takimoto, Tetsuya Ishikawa, Syuuji Nagata
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Patent number: 7793939Abstract: A seal cover includes a cylindrical part which is fixed to an outer peripheral surface of an axle, a flange part which is opposed to an end surface in an axial direction of a housing, interposing a small clearance, and a deflector part which is opposed to an outer peripheral surface of the housing, interposing a small clearance. A passage through which muddy water or the like arrives at an annular clearance from an exterior of a vehicle can be formed of the small clearances, and the passage can be made long. Because an overlapping amount between the deflector part and the outer peripheral surface of the housing can be secured, the muddy water or the like which has been splashed by a wheel and flowing from an outer peripheral side of the housing to an inner peripheral side can be made difficult to intrude into a space.Type: GrantFiled: September 24, 2007Date of Patent: September 14, 2010Assignee: JTEKT CorporationInventors: Tetsuya Ishikawa, Masaru Deguchi, Youichi Tsuzaki
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Patent number: 7614795Abstract: A rolling bearing assembly includes: an outer ring member; an inner ring member; a hub wheel formed with a flange at one axial end thereof; and a seal member for sealing a space between one axial end of the outer ring member and an inside surface of the flange, which axially opposes the one end of the outer ring member. The seal member includes: a cylindrical core fitted on the one axial end of the outer ring member and axially extended from the one end toward the flange; and an annular lip portion secured to the core and formed from an elastic material as axially extended from the core to the inside surface of the flange.Type: GrantFiled: August 30, 2006Date of Patent: November 10, 2009Assignee: JTEKT CorporationInventors: Ken Adachi, Youichi Tsuzaki, Masaru Deguchi, Tetsuya Ishikawa
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Patent number: 7556435Abstract: A roller bearing apparatus provided with a roller bearing having an outer ring with a cylindrical opening that opens at one end and a cover fitted in the opening against the inner periphery thereof to close it. The cover is provided with an inscribing surface that inscribes the. inner periphery of the opening and a stepped surface that protrudes radially outward from the inscribing surface to abut the axial end face of the opening. The axial end face of the opening is provided with a beveled part on the inner rim. An annular space formed by the beveled part, inscribing surface, and stepped surface is filled with sealant.Type: GrantFiled: February 15, 2006Date of Patent: July 7, 2009Assignee: JTEKT CorporationInventors: Syuji Nagata, Tomonari Nishiyama, Masaru Deguchi
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Publication number: 20090074341Abstract: It is a cage that is formed of a resin and that holds balls serving as rolling elements. The cage includes an annular base portion, and a plurality of claw portions that are formed to be arranged at constant intervals on the circumference of the base portion and to protrude therefrom. A pocket for accommodating the ball is formed between each pair of adjacent ones of the claw portions. In the resin cage for a ball bearing, thinning recesses are formed in end parts 11a of the claw portions and a rear surface of the base portion, respectively.Type: ApplicationFiled: August 27, 2008Publication date: March 19, 2009Applicant: JTEKT CorporationInventors: Yoshito Takada, Katsuyuki Harada, Youichi Tsuzaki, Toshihiro Hakata, Masaru Deguchi
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Publication number: 20080258541Abstract: A wheel bearing apparatus includes a roller bearing, an inner shaft having an outer circumferential surface to which an inner ring of the roller bearing is installed, a coupler ring attached to an end portion of the inner shaft, and a caulked portion provided in an end portion of the inner shaft so as to fix the coupler ring and the roller bearing to the inner shaft so as to be immovable in an axial direction of the inner shaft. An outer diameter of the coupler ring is set smaller than a diameter of a shoulder portion of the inner ring. Alternatively, a protruding portion is provided in any one of opposing end surfaces of the coupler ring and the inner ring, whereby the coupler ring is arranged away from a seal member. Accordingly, it is possible to avoid an interference of the coupler ring with the seal member.Type: ApplicationFiled: March 26, 2007Publication date: October 23, 2008Applicant: JTEKT CORPORATIONInventors: Tsuyoshi Kamikawa, Yoshito Takada, Masaru Deguchi, Ken Adachi, Youichi Tsuzaki, Seiji Yamamoto, Changxin Yu, Masao Takimoto, Tetsuya Ishikawa, Syuuji Nagata
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Patent number: 7359193Abstract: Electronic equipment includes a chassis that compose a case, a first printed circuit board, an MPU and a memory both of which are mounted in the case and consume high power, and a cooling fan for taking in air from the outside into the inside of the case. The cooling fan supplies an air current to the MPU and the memory to cool them. The electronic equipment also includes a wind direction control board between the cooling fan and the MPU and the memory to partition the inside of the case into at least two subspaces. The wind direction control board has an opening at a position opposed to the MPU and the memory.Type: GrantFiled: October 5, 2005Date of Patent: April 15, 2008Assignee: NEC CorporationInventor: Masaru Deguchi
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Publication number: 20080073854Abstract: A seal cover includes a cylindrical part which is fixed to an outer peripheral surface of an axle, a flange part which is opposed to an end surface in an axial direction of a housing, interposing a small clearance, and a deflector part which is opposed to an outer peripheral surface of the housing, interposing a small clearance. A passage through which muddy water or the like arrives at an annular clearance from an exterior of a vehicle can be formed of the small clearances, and the passage can be made long. Because an overlapping amount between the deflector part and the outer peripheral surface of the housing can be secured, the muddy water or the like which has been splashed by a wheel and flowing from an outer peripheral side of the housing to an inner peripheral side can be made difficult to intrude into a space.Type: ApplicationFiled: September 24, 2007Publication date: March 27, 2008Applicant: JTEKT CORPORATIONInventors: Tetsuya Ishikawa, Masaru Deguchi, Youichi Tsuzaki
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Publication number: 20080063335Abstract: A rolling bearing assembly 1 includes: a hub shaft 2; a double-row hub bearing 4 disposed on an outer periphery of the hub shaft 2 and possessing first-row rolling elements 19 on an outer side and second-row rolling elements 20 on an inner side; and a spindle bearing S interposed between an axle shaft 5 and the hub shaft 2. The spindle bearing S is located at place outside a range defined between working points K1, k2 of the first-row and second-row rolling elements 19, 20 of the hub bearing 4 with respect to an axial direction of the hub shaft, whereby the whole body of the rolling bearing assembly 1 is increased in rigidity. Thus, the rolling bearing assembly is increased in rigidity as a whole, so as to be able to easily bear a moment load particularly applied to the hub shaft, as well as to ensure the strength of the hub shaft.Type: ApplicationFiled: September 26, 2005Publication date: March 13, 2008Inventors: Masaru Deguchi, Youichi Tsuzaki, Yoshishige Takeda
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Publication number: 20070217728Abstract: A rolling bearing adapted to prevent crack formation in a caulking portion is provided. A rolling bearing assembly includes: a hub shaft having the caulking portion at an axial end thereof, the caulking portion bendably deformed in a radially outward direction; the rolling bearing mounted on an outside surface of the hub shaft; and an annular member spline-engaged with the hub shaft and caulk-fixed to place by the caulking portion. An inner-side axial end of a second male spline formed on the hub shaft is shifted from an inner-side end of the hub shaft toward an outer side far enough to ensure that the second male spline is not susceptible to the plastic deformation of the caulked caulking portion.Type: ApplicationFiled: September 28, 2005Publication date: September 20, 2007Inventors: Shinichirou Kashiwagi, Shinnosuke Takasaki, Yuichi Nakagawa, Tsuyoshi Kamikawa, Masaru Deguchi, Masahiro Inoue
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Publication number: 20070201781Abstract: A rolling bearing assembly includes: an outer ring member; an inner ring member; a hub wheel formed with a flange at one axial end thereof; and a seal member for sealing a space between one axial end of the outer ring member and an inside surface of the flange, which axially opposes the one end of the outer ring member. The seal member includes: a cylindrical core fitted on the one axial end of the outer ring member and axially extended from the one end toward the flange; and an annular lip portion secured to the core and formed from an elastic material as axially extended from the core to the inside surface of the flange.Type: ApplicationFiled: August 30, 2006Publication date: August 30, 2007Applicant: JTEKT CorporationInventors: Ken Adachi, Youichi Tsuzaki, Masaru Deguchi, Tetsuya Ishikawa
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Patent number: 7125173Abstract: In a bearing device in which a free end of a shaft body to which a rolling bearing is mounted is bent outward in its radial direction into a shape to be pushed against an end face of an inner ring of the rolling bearing so as to prevent the rolling bearing from falling out, a raceway surface of the inner ring of the rolling bearing is subjected to hardening treatment, and another portion of the inner ring is made of raw material which is not hardened. With this arrangement, the caulked portion formed by the caulking plastically deforms the relatively soft inner peripheral corner of the inner ring and as a result, the caulked portion and the inner peripheral corner are adhered to each other strongly.Type: GrantFiled: July 29, 2003Date of Patent: October 24, 2006Assignee: Koyo Seiko Co., Ltd.Inventors: Kazutoshi Toda, Masaru Deguchi, Shinichirou Kashiwagi, Tadashi Mitarai, Tomohiro Ishii, Daisaku Tomita
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Publication number: 20060228062Abstract: A roller bearing apparatus provided with a roller bearing having an outer ring with a cylindrical opening that opens at one end and a cover fitted in the opening against the inner periphery thereof to close it. The cover is provided with an inscribing surface that inscribes the. inner periphery of the opening and a stepped surface that protrudes radially outward from the inscribing surface to abut the axial end face of the opening. The axial end face of the opening is provided with a beveled part on the inner rim. An annular space formed by the beveled part, inscribing surface, and stepped surface is filled with sealant.Type: ApplicationFiled: February 15, 2006Publication date: October 12, 2006Applicant: JTEKT CORPORATIONInventors: Syuji Nagata, Tomonari Nishiyama, Masaru Deguchi
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Publication number: 20060082967Abstract: Electronic equipment includes a chassis that compose a case, a first printed circuit board, an MPU and a memory both of which are mounted in the case and consume high power, and a cooling fan for taking in air from the outside into the inside of the case. The cooling fan supplies an air current to the MPU and the memory to cool them. The electronic equipment also includes a wind direction control board between the cooling fan and the MPU and the memory to partition the inside of the case into at least two subspaces. The wind direction control board has an opening at a position opposed to the MPU and the memory.Type: ApplicationFiled: October 5, 2005Publication date: April 20, 2006Applicant: NEC CorporationInventor: Masaru Deguchi
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Patent number: 6916187Abstract: A ground connecting member is connected to a ground formed on a substrate. The ground connecting member has elasticity and conductivity. The substrate is fixed on a compensating member for compensating for an area of the ground. At this time, the ground connecting member is sandwiched between the substrate and the compensating member. In this structure, the ground connecting member contacts the compensating member, and electrically connects the ground with the compensating member in a low impedance state.Type: GrantFiled: January 16, 2002Date of Patent: July 12, 2005Assignee: NEC CorporationInventor: Masaru Deguchi
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Patent number: 6800805Abstract: A low-cost noise suppressive technology using a general connector, reliably grounding to a shielding sheath of shielded cable at a low impedance by simple structure. The structure comprises conductive shielding covers attached to a chassis to enclose both sides of the second connector of non-shielded type at a tip of the shielded cable connected to the first connector mounted on the chassis and are fixed in a state to mate each other. Gaskets made of elastic material are respectively attached to inside of each shielding covers and made of conductive material being in electrical contact with the shielding cover. The gaskets are elastically contacted and conducted with the shielding sheath at an exposed portion of the shielded cable when the shielding covers are attached to the chassis to enclose the second connector and are fixed in the state to mate each other.Type: GrantFiled: December 4, 2003Date of Patent: October 5, 2004Assignee: NEC CorporationInventor: Masaru Deguchi
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Publication number: 20040118582Abstract: A low-cost noise suppressive technology using a general connector, reliably grounding to a shielding sheath of shielded cable at a low impedance by simple structure. The structure comprises conductive shielding covers attached to a chassis to enclose both sides of the second connector of non-shielded type at a tip of the shielded cable connected to the first connector mounted on the chassis and are fixed in a state to mate each other. Gaskets made of elastic material are respectively attached to inside of each shielding covers and made of conductive material being in electrical contact with the shielding cover. The gaskets are elastically contacted and conducted with the shielding sheath at an exposed portion of the shielded cable when the shielding covers are attached to the chassis to enclose the second connector and are fixed in the state to mate each other.Type: ApplicationFiled: December 4, 2003Publication date: June 24, 2004Inventor: Masaru Deguchi
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Publication number: 20040022470Abstract: In a bearing device in which a free end of a shaft body to which a rolling bearing is mounted is bent outward in its radial direction into a shape to be pushed against an end face of an inner ring of the rolling bearing so as to prevent the rolling bearing from falling out, a raceway surface of the inner ring of the rolling bearing is subjected to hardening treatment, and other portion of the inner ring is made of row material which is not hardened. With this arrangement, the caulked portion formed by the caulking plastically deforms the relatively soft inner peripheral corner of the inner ring and as a result, the caulked portion and the inner peripheral corner are adhered to each other strongly.Type: ApplicationFiled: July 29, 2003Publication date: February 5, 2004Applicant: Koyo Seiko Co., Ltd.Inventors: Kazutoshi Toda, Masaru Deguchi, Shinichirou Kashiwagi, Tadashi Mitarai, Tomohiro Ishii, Daisaku Tomita
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Patent number: D485550Type: GrantFiled: July 25, 2002Date of Patent: January 20, 2004Assignee: NEC CorporationInventors: Masaru Deguchi, Katsumi Kayasima, Muneyoshi Mikuni