Patents by Inventor Kenichi Fujimoto

Kenichi Fujimoto 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).

  • Patent number: 7604559
    Abstract: The eccentrically oscillating gear device is equipped with an internal gear (15) having internal gear pins (15a), a carrier (11) rotating relative to the internal gear, a pair of bearings (19, 20) that have a rolling element and a ring body for supporting the rolling element, a crank shaft supported by the carrier so as to be freely rotatable and external gears (13, 14) that are equipped with external teeth having a trochoid tooth profile whose tooth top portions are cut out, and disposed between the pair of bearings. The outer peripheries of the external gears are engaged with the internal gear pins and fitted to the crank portion of the crank shaft. The eccentrically oscillating gear device is designed so that the external gear makes an eccentrically oscillating motion by rotation of the crank shaft and the rotational output is taken out from the internal gear or the carrier.
    Type: Grant
    Filed: December 21, 2004
    Date of Patent: October 20, 2009
    Assignee: Nabtesco Corporation
    Inventors: Kenichi Fujimoto, Toshiharu Hibino
  • Publication number: 20090114150
    Abstract: To simultaneously display a transfer state of substrates (wafers) held on a substrate holding tool and detail-information thereof on the same screen. In a substrate processing apparatus that loads a substrate holding tool, on which a plurality of substrates are placed, into a furnace, and applies prescribed processing thereto, a whole body of boats, as a boat image view of transfer information regarding the substrates on the substrate holding tool, is displayed in an operation screen, and detail-information of a substrate of each area is displayed in the operation screen, with the whole body of the boats divided into a plurality of areas.
    Type: Application
    Filed: October 29, 2008
    Publication date: May 7, 2009
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Akihiko Yoneda, Kenichi Fujimoto
  • Publication number: 20090014965
    Abstract: A sealing material, which comprises a curing product of a composition comprising (A) an acrylic polymer having at least one alkenyl group capable of undergoing hydrosilylation reaction, (B) a hydrosilyl group-containing compound and (C) a hydrosilylation catalyst as essential components, is suitable for use as cam cover seals and oil pan seals for automobile engines, fuel cell cooling medium seals, automobile wire harnesses seals, HDD cover gasket or vibration-insulating HDD cover gasket seals, etc.
    Type: Application
    Filed: September 8, 2008
    Publication date: January 15, 2009
    Applicants: NOK CORPORATION, KANEKA CORPORATION
    Inventors: Masashi Kudo, Kenichi Fujimoto, Atsushi Koga, Yoshifumi Kojima, Osamu Ando, Yoshiki Nakagawa
  • Patent number: 7476174
    Abstract: Elastic deformation of bridge portions in an externally toothed gear and external teeth is suppressed, and this extends the life of tooth surfaces of external teeth 19, improves vibration characteristics, and markedly increases output torque while preventing a planetary gear device 11 from becoming large in size.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: January 13, 2009
    Assignee: Nabtesco Corporation
    Inventor: Kenichi Fujimoto
  • Publication number: 20080139357
    Abstract: Elastic deformation of bridge portions in an externally toothed gear and external teeth is suppressed, and this extends the life of tooth surfaces of external teeth 19, improves vibration characteristics, and markedly increases output torque while preventing a planetary gear device 11 from becoming large in size. To achieve the above, a ratio obtained by dividing the diameter D of each of pins constituting internal teeth 14 by the pitch P of the internal teeth 14 is made smaller to an extent where tooth tops 19a of the external teeth 19 are radially outside the inner periphery 15a of an internally toothed gear 15. Alternatively, a meeting point C where action lines S of reaction force K of drive force components meet is moved more radially outward compared with a known eccentric oscillating-type planetary gear device so as to be positioned between a pin circle P passing the centers of all the internal teeth (pins) 14 and an outer end passing circle G passing radially outer ends of through holes 22.
    Type: Application
    Filed: January 28, 2005
    Publication date: June 12, 2008
    Applicant: NABTESCO CORPORATION
    Inventor: Kenichi Fujimoto
  • Patent number: 7365122
    Abstract: A fluoroelastomer composition, which comprises 100 parts by weight of vinylidene fluoride-perfluoro(methyl vinyl ether)-tetrafluoroethylene terpolymer or vinylidene fluoride-hexafluoropropene copolymer, and 10-50 parts by weight of liquid fluoroelastomer having a viscosity of 500 to 3,000 cps at 100° C., can be made cross-linkable or vulcanizable fluoroelastomer composition upon further addition of 0.5 to 5 parts by weight of an organic peroxide and 0.5 to 10 parts by weight of a polyfunctional unsaturated compound or further addition of 0.5 to 10 parts by weight of a polyol-based vulcanizing agent thereto. The fluoroelastomer composition can give a cross-linked or vulcanized product having a hardness (Durometer A) of not more than 50 and distinguished processability and compression set resistance characteristics.
    Type: Grant
    Filed: December 6, 2006
    Date of Patent: April 29, 2008
    Assignee: NOK Corporation
    Inventors: Yoshifumi Kojima, Atsushi Koga, Kenichi Fujimoto
  • Patent number: 7279530
    Abstract: A fluororubber composition includes a polyol-crosslinkable fluororubber, a crosslinking accelerator, a polyol crosslinking agent and calcium hydroxide, with the crosslinking accelerator having a specific weight ratio relative to the polyol crosslinking agent, and is heat treated under specific conditions to give a low-friction fluororubber crosslinked product that is well balanced and excellent in properties such as low frictional properties, low tackiness and low resilience properties and that is favorably employed as rubber vibration insulators and impact-absorbing stoppers represented by HDD stoppers.
    Type: Grant
    Filed: April 21, 2004
    Date of Patent: October 9, 2007
    Assignee: NOK Corporation
    Inventors: Toshihiro Higashira, Hiroyuki Sano, Kenichi Fujimoto
  • Publication number: 20070221815
    Abstract: A material for vibration-absorbable mounts, which comprises a cured product of a composition comprising (A) an acrylic polymer having at least one alkenyl group capable of undergoing hydrosilylation reaction, (B) a hydrosilyl group-containing compound and (C) a hydrosilylation catalyst as essential components, has a distinguished vibration-absorbing characteristic such as a loss tangent (tan ?) of 0.5 or more, and also a distinguished heat resistance, and thus is sufficiently suitable for vibration-absorbable mounts for HDDs as mounted on automobiles. Furthermore, the material for vibration-absorbable mounts has distinguished heat resistance, oil resistance, vibration-absorbing characteristic, compression set characteristic, low hardness, cleanliness (out gassing property and non-corrosiveness), etc. and thus can be effectively used as vibration-absorbable mounts for electric and electronic parts provided with opto-magnetic drives, for example CD, DVD, HDD, etc.
    Type: Application
    Filed: March 2, 2007
    Publication date: September 27, 2007
    Inventors: Kenichi Fujimoto, Yoshifumi Kojima, Atsushi Koga, Yoshiki Nakagawa
  • Publication number: 20070225448
    Abstract: A sealing material, which comprises a curing product of a composition comprising (A) an acrylic polymer having at least one alkenyl group capable of undergoing hydrosilylation reaction, (B) a hydrosilyl group-containing compound and (C) a hydrosilylation catalyst as essential components, is suitable for use as cam cover seals and oil pan seals for automobile engines, fuel cell cooling medium seals, automobile wire harnesses seals, HDD cover gasket or vibration-insulating HDD cover gasket seals, etc.
    Type: Application
    Filed: May 18, 2007
    Publication date: September 27, 2007
    Inventors: Masashi Kudo, Kenichi Fujimoto, Atsushi Koga, Yoshifumi Kojima, Osamu Ando, Yoshiki Nakagawa
  • Publication number: 20070221448
    Abstract: A sealing material, which comprises a curing product of a composition comprising (A) an acrylic polymer having at least one alkenyl group capable of undergoing hydrosilylation reaction, (B) a hydrosilyl group-containing compound and (C) a hydrosilylation catalyst as essential components, is suitable for use as cam cover seals and oil pan seals for automobile engines, fuel cell cooling medium seals, automobile wire harnesses seals, HDD cover gasket or vibration-insulating HDD cover gasket seals, etc.
    Type: Application
    Filed: May 18, 2007
    Publication date: September 27, 2007
    Inventors: Masashi Kudo, Kenichi Fujimoto, Atsushi Koga, Yoshifumi Kojima, Osamu Ando, Yoshiki Nakagawa
  • Publication number: 20070167268
    Abstract: The eccentrically oscillating gear device is equipped with an internal gear (15) having internal gear pins (15a), a carrier (11) rotating relative to the internal gear, a pair of bearings (19, 20) that have a rolling element and a ring body for supporting the rolling element, a crank shaft supported by the carrier so as to be freely rotatable and external gears (13, 14) that are equipped with external teeth having a trochoid tooth profile whose tooth top portions are cut out, and disposed between the pair of bearings. The outer peripheries of the external gears are engaged with the internal gear pins and fitted to the crank portion of the crank shaft. The eccentrically oscillating gear device is designed so that the external gear makes an eccentrically oscillating motion by rotation of the crank shaft and the rotational output is taken out from the internal gear or the carrier.
    Type: Application
    Filed: December 21, 2004
    Publication date: July 19, 2007
    Applicant: NABTESCO CORPORATION
    Inventors: Kenichi Fujimoto, Toshiharu Hibino
  • Publication number: 20070083000
    Abstract: A fluoroelastomer composition, which comprises 100 parts by weight of vinylidene fluoride-perfluoro(methyl vinyl ether)-tetrafluoroethylene terpolymer or vinylidene fluoride-hexafluoropropene copolymer, and 10-50 parts by weight of liquid fluoroelastomer having a viscosity of 500 to 3,000 cps at 100° C., can be made cross-linkable or vulcanizable fluoroelastomer composition upon further addition of 0.5 to 5 parts by weight of an organic peroxide and 0.5 to 10 parts by weight of a polyfunctional unsaturated compound or further addition of 0.5 to 10 parts by weight of a polyol-based vulcanizing agent thereto. The fluoroelastomer composition can give a cross-linked or vulcanized product having a hardness (Durometer A) of not more than 50 and distinguished processability and compression set resistance characteristics.
    Type: Application
    Filed: December 6, 2006
    Publication date: April 12, 2007
    Inventors: Yoshifumi Kojima, Atsushi Koga, Kenichi Fujimoto
  • Patent number: 7202299
    Abstract: A fluoroelastomer composition, which comprises 100 parts by weight of vinylidene fluoride-perfluoro(methyl vinyl ether)-tetrafluoroethylene terpolymer or vinylidene fluoride-hexafluoropropene copolymer, and 10–50 parts by weight of liquid fluoroelastomer having a viscosity of 500 to 3,000 cps at 100° C., can be made cross-linkable or vulcanizable fluoroelastomer composition upon further addition of 0.5 to 5 parts by weight of an organic peroxide and 0.5 to 10 parts by weight of a polyfunctional unsaturated compound or further addition of 0.5 to 10 parts by weight of a polyol-based vulcanizing agent thereto. The fluoroelastomer composition can give a cross-linked or vulcanized product having a hardness (Durometer A) of not more than 50 and distinguished processability and compression set resistance characteristics.
    Type: Grant
    Filed: January 7, 2004
    Date of Patent: April 10, 2007
    Assignee: NOK Corporation
    Inventors: Yoshifumi Kojima, Atsushi Koga, Kenichi Fujimoto
  • Publication number: 20070021565
    Abstract: An EPDM composition, which comprises a blend rubber comprising 100 parts by weight of blend rubber consisting of 20-80% by weight of EPDM containing 5-ethylidene-2-norbornene [ENB] as one type of diene component and 80-20% by weight of EPDM containing dicyclopentadiene [DCPD] as another type of diene component, and 0.5-10 parts by weight of an organic peroxide. Seal parts obtained by vulcanization molding of the EPDM composition show well balanced characteristics, even if dipped in hot water at high temperatures such as 200° C. for 500 hours or 300° C. for 24 hours, particularly with improved compression set characteristics.
    Type: Application
    Filed: September 29, 2004
    Publication date: January 25, 2007
    Inventors: Satoshi Horie, Masashi Kudo, Kenichi Fujimoto
  • Patent number: 7099111
    Abstract: A hard disc drive cover-integrated gasket, which comprises a metallic cover and a packing material integrated with the metallic cover, the packing material being a molding material from a mixture comprising 100 parts by weight of EPDM or a blend of EPDM and polystyrene type thermoplastic elastomer, 10–100 parts by weight of polypropylene type resin, 20–130 parts by weight of a plasticizer and 0.1–10 parts by weight of a cross-linking agent is easy to fabricate and has distinguished characteristics as low outgassing characteristics, low hardness, good sealability at elevated temperatures, etc.
    Type: Grant
    Filed: March 6, 2006
    Date of Patent: August 29, 2006
    Assignee: NOK Corporation
    Inventors: Yoshifumi Kojima, Kenichi Fujimoto, Atsushi Koga, Kazuhisa Senda
  • Publication number: 20060155074
    Abstract: A sealing material, which comprises a curing product of a composition comprising (A) an acrylic polymer having at least one alkenyl group capable of undergoing hydrosilylation reaction, (B) a hydrosilyl group-containing compound and (C) a hydrosilylation catalyst as essential components, is suitable for use as cam cover seals and oil pan seals for automobile engines, fuel cell cooling medium seals, automobile wire harnesses seals, HDD cover gasket or vibration-insulating HDD cover gasket seals, etc.
    Type: Application
    Filed: October 3, 2003
    Publication date: July 13, 2006
    Applicant: NOK CORPORATION
    Inventors: Masashi Kudo, Kenichi Fujimoto, Atsushi Koga, Yoshifumi Kojima, Osamu Ando, Yoshiki Nakagawa
  • Publication number: 20060146444
    Abstract: A hard disc drive cover-integrated gasket, which comprises a metallic cover and a packing material integrated with the metallic cover, the packing material being a molding material from a mixture comprising 100 parts by weight of EPDM or a blend of EPDM and polystyrene type thermoplastic elastomer, 10-100 parts by weight of polypropylene type resin, 20-130 parts by weight of a plasticizer and 0.1-10 parts by weight of a cross-linking agent is easy to fabricate and has distinguished characteristics as low outgassing characteristics, low hardness, good sealability at elevated temperatures, etc.
    Type: Application
    Filed: March 6, 2006
    Publication date: July 6, 2006
    Inventors: Yoshifumi Kojima, Kenichi Fujimoto, Atsushi Koga, Kazuhisa Senda
  • Patent number: 7050263
    Abstract: A hard disc drive cover-integrated gasket, which comprises a metallic cover and a packing material integrated with the metallic cover, the packing material being a molding material from a mixture comprising 100 parts by weight of EPDM or a blend of EPDM and polystyrene type thermoplastic elastomer, 10–100 parts by weight of polypropylene type resin, 20–130 parts by weight of a plasticizer and 0.1–10 parts by weight of a cross-linking agent is easy to fabricate and has distinguished characteristics as low outgassing characteristics, low hardness, good sealability at elevated temperatures, etc.
    Type: Grant
    Filed: November 4, 2003
    Date of Patent: May 23, 2006
    Assignee: NOK Corporation
    Inventors: Yoshifumi Kojima, Kenichi Fujimoto, Atsushi Koga, Kazuhisa Senda
  • Publication number: 20060074170
    Abstract: According to the present invention, provided is a thermoplastic elastomer composition, comprising an ethylene-propylene-nonconjugated diene ternary copolymer or an ethylene-propylene binary copolymer, a crystalline polyolefin resin, a non-aromatic softening agent, and an organic peroxide, in which the crystalline polyolefin resin has from 0.1 g/10 min. to 100 g/10 min. of melt flow rate which is measured in accordance with JIS K7210 under conditions of 230° C. and 21.18 N and is contained in an amount of from 10 to 150 parts by weight every 100 parts by weight of the copolymer; the non-aromatic softening agent has a kinetic viscosity of 300 mm2/s or more at 40° C. and is contained in an amount of from 20 to 150 parts by weight every 100 parts by weight of the copolymer; the organic peroxide is contained in an amount of from 0.1 to 10 parts by weight every 100 parts by weight of the copolymer; and hardness measured by a JIS type A durometer is from 30 to 70 degrees.
    Type: Application
    Filed: October 30, 2003
    Publication date: April 6, 2006
    Applicant: NOK CORPOATION
    Inventors: Yoshifumi Kojima, Atsushi Koga, Kenichi Fujimoto, Kazuhisa Senda
  • Publication number: 20050248101
    Abstract: A high-performance gasket (1) capable of coping with a reduction in size and developing a sealing property without producing a squeeze-out at the time of attachment and using a material having a hardness range of 30 to 80 degrees (JIS durometer type A), wherein the requirement of W1/W0<0.9 is satisfied where the bonding width of a base part (1a) is (W0) and the width thereof at a position half a height from the bonding part of the base part (1a) to the tip end of a main bead part (2) is (W1), the requirement of 1.15<H/W0<1.80 is satisfied where the height from the bonding part of the base part (1a) to the tip end of the main bead part (2) is (H), the requirement of L/W0>=3 is satisfied where the length of the non-bonded portion of the base part (1a) around the cross-section thereof excluding the bonded portion is (L), and the compressibility of the gasket when compressed is 13.5% or higher.
    Type: Application
    Filed: August 29, 2003
    Publication date: November 10, 2005
    Inventors: Nobuyuki Oka, Yoshifumi Kojima, Atsushi Koga, Kenichi Fujimoto, Kazuhisa Senda, Masayuki Kishimoto, Shunji Ueda, Nobuyuki Shintaku