Patents by Inventor Hideki Fujiwara

Hideki Fujiwara 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).

  • Publication number: 20090255489
    Abstract: A motorcycle includes an engine, a radiator that cools a cooling liquid, a first piping that connects the engine to the radiator, and a second piping that connects the engine to the radiator. The second piping, engine, radiator and first piping form a circulating circuit through which cooling liquid circulates. At least one of the first and second pipings is substantially constituted by resin piping. The time required to warm up the engine is thereby reduced.
    Type: Application
    Filed: April 8, 2009
    Publication date: October 15, 2009
    Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Hideki FUJIWARA, Eigo KITAMURA
  • Publication number: 20090235861
    Abstract: A method of manufacturing a silicon single crystal with carbon doping in a chamber by using a Czochralski method is provided. In a step of placing a silicon raw material in a crucible, a carbon dopant is disposed at a distance of 5 cm or further away from the inner surface of the crucible, and in this state, a step of melting the silicon raw material is performed after the disposing step.
    Type: Application
    Filed: March 18, 2009
    Publication date: September 24, 2009
    Applicant: SUMCO CORPORATION
    Inventors: Hideki FUJIWARA, Naoki IKEDA, Kazunari KURITA, Masataka HOURAI
  • Patent number: 7533645
    Abstract: An intake control device changes an intake conduit length from a first length to a second length according to whether or not an engine speed has reached a predetermined threshold value. The threshold value is predetermined on the basis of both an engine output torque in the state of the intake conduit length set to the first length and an engine output torque in the state of the intake conduit length set to the second length.
    Type: Grant
    Filed: September 18, 2007
    Date of Patent: May 19, 2009
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Hideki Fujiwara, Akira Someya
  • Publication number: 20080149943
    Abstract: A photodiode array PD1 comprises an n-type semiconductor substrate one face of which is an incident surface of light to be detected; a plurality of pn junction-type photosensitive regions 3 as photodiodes formed on the side of a detecting surface that is opposite to the incident surface of the semiconductor substrate; and a carrier capturing portion 12 formed between adjacent photosensitive regions 3 from among the plurality of photosensitive regions 3 on the detecting surface side of the semiconductor substrate. The carrier capturing portion 12 has one or plurality of carrier capturing regions 13 respectively including pn-junctions, arranged at intervals. Thereby can be realized a semiconductor photodetector and a radiation detecting apparatus which can favorably restrain crosstalk from occurring.
    Type: Application
    Filed: December 27, 2006
    Publication date: June 26, 2008
    Inventors: Tatsumi Yamanaka, Masanori Sahara, Hideki Fujiwara
  • Publication number: 20080092847
    Abstract: An intake control device changes an intake conduit length from a first length to a second length according to whether or not an engine speed has reached a predetermined threshold value. The threshold value is predetermined on the basis of both an engine output torque in the state of the intake conduit length set to the first length and an engine output torque in the state of the intake conduit length set to the second length.
    Type: Application
    Filed: September 18, 2007
    Publication date: April 24, 2008
    Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Hideki Fujiwara, Akira Someya
  • Publication number: 20080078647
    Abstract: A length of each pocket of a cage in a circumferential direction is smaller than the sum of an outer diameter of a roller and a free length of a coil spring. The cage can rotate relative to an inner ring having cam surfaces in accordance with revolution of the rollers in an overload-applied condition, and the cage can not rotate in a direction opposite to a direction of revolution of the rollers in the overload-applied condition.
    Type: Application
    Filed: September 27, 2007
    Publication date: April 3, 2008
    Applicant: JTEKT CORPORATION
    Inventors: Hajime Watanabe, Hideki Fujiwara, Tomoya Yamatani, Masaki Maeda
  • Patent number: 7348065
    Abstract: Produce a slipping property imparting agent for clear coat that reduces scum production: wherein, (1) the agent comprises a copolymer whose constituents are unsaturated olefin (constituent (a)) and unsaturated carboxylic acid (carboxylate) (constituent (b)); (2) constituent (a) accounts for 50 to 99 mol percent and constituent (b) accounts for 50 to 1 mol percent, respectively, of the total mol number of constituents (a) and (b) combined; and (3) a constituent (c) that can be polymerized with the constituents (a) and (b) is contained, as necessary, by up to 20 mol percent of the total mol number of constituents (a) and (b) combined.
    Type: Grant
    Filed: March 26, 2003
    Date of Patent: March 25, 2008
    Assignees: Nippon Paper Industries Co., Ltd., San Nipco Limited
    Inventors: Hiroshi Ono, Fuminari Nonomura, Hideki Fujiwara, Tsutomu Miyata, Yoshinobu Nakano
  • Patent number: 7278938
    Abstract: A power transmission device includes a first one-way clutch that transmits a rotational power of a pulley to a rotating shaft, and a second one-way clutch that transmits a rotational power of a rotor of a motor to the rotating shaft. The first one-way clutch is of inner cam type in which an engagement cam-surface is formed in an outer periphery of a first inner ring, while the second one-way clutch is of outer cam type in which an engagement cam-surface is formed in an inner periphery of a second outer ring. This arrangement improves engagement performance of the first one-way clutch as well as reducing heat generation of the second one-way clutch, so that the lifetime of grease is prolonged.
    Type: Grant
    Filed: February 26, 2004
    Date of Patent: October 9, 2007
    Assignee: Koyo Seiko Co., Ltd.
    Inventors: Takahiro Ichihara, Hajime Watanabe, Hideki Fujiwara, Minoru Mera, Taku Adaniya, Akinobu Kanai, Naoki Usui, Tomoharu Arai
  • Publication number: 20070181868
    Abstract: This silicon electrode plate for plasma etching is a silicon electrode plate for plasma etching with superior durability including silicon single crystal which, in terms of atomic ratio, contains 3 to 11 ppba of boron, and further contains a total of 0.5 to 6 ppba of either or both of phosphorus and arsenic.
    Type: Application
    Filed: March 30, 2005
    Publication date: August 9, 2007
    Applicants: SUMCO CORPORATION, Mitsubishi Materials Corporation
    Inventors: Hideki Fujiwara, Kazuhiro Ikezawa, Hiroaki Taguchi, Naofumi Iwamoto, Toshinori Ishii, Takashi Komekyu
  • Publication number: 20070113996
    Abstract: A method of manufacturing a gravure printing paper includes: providing a substance having an effect of inhibiting a binding between pulp fibers; preparing a mixture of pulp fibers and fillers; and adding the substance to the mixture; making a gravure printing paper using the substance-added mixture.
    Type: Application
    Filed: January 19, 2007
    Publication date: May 24, 2007
    Inventors: Takashi Ochi, Takehide Kasahara, Hideki Fujiwara
  • Patent number: 7216416
    Abstract: A complex working system for sheet metal working comprising a sheet metal working line having at least a first step working cell and a subsequent second step working cell, wherein a working schedule for the second step working cell is first determined. A working schedule for the first step working cell is then determined based on the working schedule for the second step working cell, and the scheduled operation of the first and the second step working cells is executed according to the determined working schedules.
    Type: Grant
    Filed: November 8, 2002
    Date of Patent: May 15, 2007
    Assignee: Amada Company, Limited
    Inventors: Kaoru Nakamura, Hideki Fujiwara
  • Patent number: 7201685
    Abstract: The present invention comprises a pulley, a shaft body which is rotatable relative to the pulley and is concentrically disposed radially inside of the pulley, a one-way clutch which is interposed at an annular space between the pulley and the shaft body, a rolling bearing which is disposed in the annular space adjacent to the one-way clutch in an axial direction, an inner annular seal which is provided outside the rolling bearing in the annular space, and an outer annular seal which is provided outside the inner annular seal and has a proximal end portion and a distal end side lip. The proximal end portion of the outer annular seal is fixed to one of an inner peripheral surface of the pulley and an outer peripheral surface of the shaft body, and the distal end side lip of the outer annular seal contacts the other peripheral surface.
    Type: Grant
    Filed: July 9, 2002
    Date of Patent: April 10, 2007
    Assignee: Koyo Seiko Co., Ltd.
    Inventors: Tadahiro Terada, Michiru Ueda, Yoshitaka Nakagawa, Hideki Fujiwara, Takahiro Ichihara
  • Patent number: 7195110
    Abstract: There is provided a one-way clutch unit that is simple in structure and compact. An annular recess 67 is provided in an inner periphery of a side of a deep groove ball bearing portion 55 of a first inner ring 7 of a first one-way clutch 1, and an end portion on the side of a deep groove ball bearing portion 65 of a second one-way clutch 2 is disposed in the annular recess 67. Thereby, the dimension in an axial direction of the one-way clutch unit is reduced by a dimension in the axial direction of the second one-way clutch 2 that is disposed in the annular recess 67.
    Type: Grant
    Filed: February 26, 2004
    Date of Patent: March 27, 2007
    Assignees: Koyo Seiko Co., Ltd., Kabushiki Kaisha Toyota Jidoshokki
    Inventors: Takahiro Ichihara, Hajime Watanabe, Hideki Fujiwara, Minoru Mera, Taku Adaniya, Akinobu Kanai, Naoki Usui, Tomoharu Arai
  • Patent number: 7168539
    Abstract: A pulley unit comprises a pulley, a shaft relatively rotatable with the pulley and concentrically arranged inner side of the pulley, a one-way clutch interposed in an annular space between the pulley and the shaft, and a ball bearing arranged adjacent to the one-way clutch in an axial direction in the annular space. The ball bearing has an inner ring and an outer ring. Raceway curvatures of the inner and outer rings of the ball bearing are set to not less than 50.5% and not more than 52.0%.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: January 30, 2007
    Assignee: Koyo Seiko Co., Ltd.
    Inventor: Hideki Fujiwara
  • Publication number: 20070002152
    Abstract: There is provided a digital photographic instrument comprising an edge enhancing section which enhances the edge of image data. The instrument determines whether a focus is good or bad and adjusts the degree of edge enhancement in the edge enhancing section according to the result of the determination, thereby giving a sharp photograph. The instrument also shortens time required for focusing by complementing an autofocusing mechanism.
    Type: Application
    Filed: June 23, 2006
    Publication date: January 4, 2007
    Inventor: Hideki Fujiwara
  • Patent number: 7143881
    Abstract: A pulley is concentrically disposed around a hollow shaft, and a one-way clutch is disposed between the hollow shaft and the pulley. At least one bearing is provided between the shaft and the pulley. In the one-way clutch, a roller as a meshing member and a coil spring as a biasing member are integrally rotated together with an outer ring. The roller moves in a meshing-releasing direction by a centrifugal force when a rotation speed of the outer ring becomes equal to or higher than a predetermined speed, and a biasing force of the coil spring has enough magnitude for permitting this movement. The pulley is provided at its inner periphery with a cam surface, and the pulley and the outer ring of the one-way clutch are integrally formed.
    Type: Grant
    Filed: October 2, 2002
    Date of Patent: December 5, 2006
    Assignee: Koyo Seiko Co., Ltd.
    Inventors: Takahiro Ichihara, Hideki Fujiwara
  • Patent number: 7101459
    Abstract: A coated printing paper the product of whose basis weight, density, Young's modulus in the machine direction and breaking length in the machine direction is within the range of no less than 1.0×1021g2·N/m6 but not greater than 4.0×1021g2·N/m6, and which offers excellent pliability, superior print gloss in the image area regardless of lower white-paper gloss, minimal small-scale gloss variations in the image area, and excellent workability with the printing machinery, more particularly a matte coated paper, is provided.
    Type: Grant
    Filed: June 26, 2001
    Date of Patent: September 5, 2006
    Assignee: Nippon Paper Industries Co., Ltd.
    Inventors: Hideaki Nisogi, Jun Makihara, Takehide Kasahara, Takashi Ochi, Hirokazu Morii, Hideki Fujiwara
  • Patent number: 7056247
    Abstract: A pulley unit includes a pulley and a rotor concentrically disposed for relative rotation, a one-way clutch interposed in an annular space therebetween, rolling bearings provided on opposite sides of the one-way clutch, and a seal ring for sealing the annular space. An inner diametrical surface of the pulley forms an outer ring raceway of the one-way clutch and the rolling bearing, and an outer diametrical surface of the shaft body forms an inner ring raceway of the one-way clutch and the rolling bearing. An outer diameter side of an annular portion of a retainer of the rolling bearing on the side of the seal ring is reduced so as to increase a storage volume of lubricating oil between the rolling bearing and the seal ring.
    Type: Grant
    Filed: July 27, 2001
    Date of Patent: June 6, 2006
    Assignee: Koyo Seiko Co., Ltd.
    Inventors: Hideki Fujiwara, Takahiro Ichihara, Tadahiro Terada, Michiru Ueda
  • Patent number: 7007781
    Abstract: There is provided a compact one-way clutch unit that can perform connection and disconnection of power in two systems. An end portion on a side of a deep groove ball bearing portion 65 of a second one-way clutch 2 is disposed in an annular recess 67, which is provided at an end portion in an inner peripheral surface of a first inner ring 7, so that the dimension in an axial direction of a one-way clutch unit is reduced. Further, an outer peripheral diameter on a side of the deep groove ball bearing portion 65 is made smaller than that on the side of a one-way clutch portion 60 of a second outer ring 14 so as to reduce a diameter of the recess 67 and the outer peripheral diameter of the first outer ring 5 of the first one-way clutch 1.
    Type: Grant
    Filed: February 26, 2004
    Date of Patent: March 7, 2006
    Assignee: Koyo Seiko Co., Ltd.
    Inventors: Takahiro Ichihara, Hajime Watanabe, Hideki Fujiwara, Minoru Mera, Taku Adaniya, Akinobu Kanai, Naoki Usui, Tomoharu Arai
  • Patent number: 7004861
    Abstract: A pulley unit improved in axial positioning of a cage of a one-way clutch is provided. An outer radius of an orbital portion of inner rings of two rolling bearings disposed at both axial sides of the cage are designed to be larger than an inner radius of the cage, so that axial movement of the cage is constrained. Due to this structure, projecting and recessing portions disposed on the cage of the one-way clutch and on an inner ring become unnecessary and can be eliminated.
    Type: Grant
    Filed: July 12, 2002
    Date of Patent: February 28, 2006
    Assignee: Koyo Seiko Co., Ltd.
    Inventor: Hideki Fujiwara