Patents by Inventor Kenichi Motomura

Kenichi Motomura 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: 10072813
    Abstract: A vehicular lamp includes a light emitter, a first light guide, and a second light guide. The first light guide has a first incident surface, a first light guiding portion that guides the entering light, a first light emission surface that emits light guided by the first light guiding portion, and a first reflecting surface that reflects the light guided by the first light guiding portion in a direction toward the second light guide. The second light guide has a second light emission surface that emits light that enters the second light guide after being reflected by the first reflecting surface, and a second reflecting surface that reflects the light that enters the second light guide after being reflected by the first reflecting surface toward the second light emission surface.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: September 11, 2018
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Hiroya Koizumi, Kenichi Motomura, Yasuo Teranishi, Hajime Takeda
  • Patent number: 9458978
    Abstract: A vehicle lamp is provided which includes a toroidal lens 30 which extends into an arc shape so as to surround a light source 20 from a front side thereof. By adopting this configuration, light emitted from the light source 20 is allowed to emanate from the toroidal lens 30 as it is as diffuse light in a horizontal plane in which the toroidal lens 30 extends, while the light is allowed to emanate from the toroidal lens 30 as parallel light in a vertical plane. Furthermore, a front surface 30Aa of a central portion 30A of the toroidal lens 30 in the direction in which the toroidal lens 30 extends into the arc shape is formed so as to be displaced rearwards relative to an imaginary extensional plane C1 from front surfaces 30Ba of general portions 30B which are situated at both sides of the central portion 30A.
    Type: Grant
    Filed: October 1, 2013
    Date of Patent: October 4, 2016
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventor: Kenichi Motomura
  • Publication number: 20150277027
    Abstract: A vehicular lamp includes a light emitter, a first light guide, and a second light guide. The first light guide has a first incident surface, a first light guiding portion that guides the entering light, a first light emission surface that emits light guided by the first light guiding portion, and a first reflecting surface that reflects the light guided by the first light guiding portion in a direction toward the second light guide. The second light guide has a second light emission surface that emits light that enters the second light guide after being reflected by the first reflecting surface, and a second reflecting surface that reflects the light that enters the second light guide after being reflected by the first reflecting surface toward the second light emission surface.
    Type: Application
    Filed: March 24, 2015
    Publication date: October 1, 2015
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Hiroya KOIZUMI, Kenichi MOTOMURA, Yasuo TERANISHI, Hajime TAKEDA
  • Publication number: 20140092616
    Abstract: A vehicle lamp is provided which includes a toroidal lens 30 which extends into an arc shape so as to surround a light source 20 from a front side thereof. By adopting this configuration, light emitted from the light source 20 is allowed to emanate from the toroidal lens 30 as it is as diffuse light in a horizontal plane in which the toroidal lens 30 extends, while the light is allowed to emanate from the toroidal lens 30 as parallel light in a vertical plane. Furthermore, a front surface 30Aa of a central portion 30A of the toroidal lens 30 in the direction in which the toroidal lens 30 extends into the arc shape is formed so as to be displaced rearwards relative to an imaginary extensional plane C1 from front surfaces 30Ba of general portions 30B which are situated at both sides of the central portion 30A.
    Type: Application
    Filed: October 1, 2013
    Publication date: April 3, 2014
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventor: Kenichi MOTOMURA
  • Publication number: 20140071703
    Abstract: A vehicular lamp includes a light source, and a light guide body having a front surface and a rear surface, configured to allow light emitted from the light source to enter from the rear surface and to exit through the front surface. The rear surface of the light guide body comprises, in a first plane extending in a front-to-rear direction, a first entrance portion configured to allow light emitted from the light source to enter in such a way as to be refracted to the front, second entrance portions situated at both sides of the first entrance portion and configured to allow light emitted from the light source to enter in such a way as to be refracted sideways, and reflecting portions configured to internally reflect light from the light source which enters from the second entrance portions to the front.
    Type: Application
    Filed: September 11, 2013
    Publication date: March 13, 2014
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventor: Kenichi Motomura
  • Publication number: 20140003076
    Abstract: A vehicular lamp that is mounted on a vehicle has a light source, a transparent part that is transparent when viewed from inside of a compartment when mounted on the vehicle, a light guiding member that forms at least a part of the transparent part, wherein the light guide member is configured to guide light emitted from the light source toward outside of the compartment when mounted on the vehicle, and a light-shielding member that blocks the light emitted from the light source and that travels toward the inside of the compartment when mounted on the vehicle.
    Type: Application
    Filed: June 28, 2013
    Publication date: January 2, 2014
    Inventors: Shinya Suganumata, Yasuo Teranishi, Kenichi Motomura, Asami Nakada, Kenji Yamada, Tsukasa Tokida
  • Patent number: 6235376
    Abstract: A method of forming a display label for displaying predetermined information on a member on which display information is to be displayed which member is elastic or expandable/contractible, comprising the steps of laminating at least a protective layer which is made of an elastic material and an expandable/contractible material, a display layer for displaying display information which is formed by at least one of a picture pattern, a letter, a symbol, a photograph, a pattern and a bar code, and a base material layer which is made of an elastic material or an expandable/contractible material, in that order, applying, to a member on which display information is to be displayed, a display label which is formed by the laminating of the protective layer, the display layer and the base material layer, and in which a supporting member is laminated on a surface of the protective layer so as to be peelable off of the protective layer such that the base material layer faces a member on which display information is to be
    Type: Grant
    Filed: November 5, 1997
    Date of Patent: May 22, 2001
    Assignee: Bridgestone Corporation
    Inventors: Toshihiko Miyazaki, Kenichi Motomura, Makoto Itani
  • Patent number: 5215612
    Abstract: A method for forming a green tire by assembling tire constituent elements such as a carcass ply, side tread, a belt, a top tread, cushion rubber members and the like. This method comprises the steps of presetting cushion rubber members preliminarily severed into a plurality of pieces at least at the both side portions of the belt and at predetermined positions on the carcass ply respectively, folding back the both side portions of the carcass ply wrapped around a forming drum as well as the side treads respectively superposed on the both side portions to simultaneously shape these into a predetermined shape on the forming drum, and sticking a BT-band consisting of the belt and the top tread preset integrally to a predetermined position. According to this method, always tires having stable quality can be manufactured, and tire production efficiency is enhanced.
    Type: Grant
    Filed: August 21, 1990
    Date of Patent: June 1, 1993
    Assignee: Bridgestone Corporation
    Inventors: Kenichi Motomura, Yoshimasa Imai, Kichinosuke Nishimoto
  • Patent number: 4756352
    Abstract: A pneumatic tire comprising a tread divided into at least three ribs by at least two main wide grooves extending substantially in a circumferential direction of the tire, wherein a shoulder rib arranged at an outermost end portion of the tread is divided in an axial direction parallel to an axis of rotation of the tire into at least two shoulder rib portions; and between two adjacent shoulder rib portions of said at least two shoulder rib portions, an outer surface of an outer shoulder rib portion is radially inwardly disposed with respect to an extension line of an outer surface of an inner shoulder rib portion arranged inwardly of the outer rib portion. A plurality of sipes may be formed in the vicinity of an outer end of at least one shoulder rib portion other than an outermost shoulder rib portion. Further, a plurality of sipes are formed in the vicinities of outer ends of at least two rib portions other than an outermost rib portion, the quantity of siping being gradually reduced in the axial direction.
    Type: Grant
    Filed: April 2, 1986
    Date of Patent: July 12, 1988
    Assignee: Bridgestone Corporation 10-1
    Inventors: Hiroshi Ogawa, Kenichi Motomura, Yukimasa Yamada, Mamoru Mamada, Hikaru Tansei
  • Patent number: 4739812
    Abstract: A pneumatic tire comprising a tread divided into at least three ribs by at least two main wide grooves substantially extending in a circumferential direction of the tire, wherein a shoulder rib of the ribs arranged at an outermost end portion of the tread is divided in an axial direction parallel to an axis of rotation of the tire into at least two rib portions; and between two adjacent rib portions of the rib portions, an inner end of an outer surface of an outer rib portion is connected through an outer surface of a circumferentially extending sloped portion to an outer end of an outer surface of an inner rib portion so that the outer end of the outer surface of the outer rib portion is lower than the inner end of the outer surface of the inner rib portion.
    Type: Grant
    Filed: April 11, 1986
    Date of Patent: April 26, 1988
    Assignee: Bridgestone Corporation
    Inventors: Hiroshi Ogawa, Kenichi Motomura, Yukimasa Yamada, Mamoru Mamada, Hikaru Tansei
  • Patent number: 4736783
    Abstract: A heavy load pneumatic radial tire having a tire tread sectioned into a plurality of circumferentially continuous ribs by a plurality of circumferentially extending wide main grooves. One of the ribs disposed at the outermost side when the tire is mounted on a vehicle is provided with a narrow groove circumferentially continuously formed in a proportion of 10% to 40% with respect to a width of the outermost rib from an adjacent tread end. The narrow groove separates the outermost rib into two portions. One of the ribs disposed at the innermost side when the tire is mounted on a vehicle is provided with a discontinuous narrow groove circumferentially disposed in a proportion of 10% to 50% with respect to a width of the innermost rib from an adjacent tread end.
    Type: Grant
    Filed: June 9, 1987
    Date of Patent: April 12, 1988
    Assignee: Bridgestone Corporation
    Inventors: Kenichi Motomura, Iwao Arimura
  • Patent number: 4676290
    Abstract: A pneumatic tire excellent in uneven wear resistance, is provided with a tread pattern which comprises a plurality of main grooves extending zigzag along the circumference of a tread, numerous transverse grooves linearly extending in at least one land portion defined between the adjacent main grooves and between the main grooves at a depth shallower than the main grooves, each one of said transverse grooves being provided in every one zigzag pitch of the main groove, a number of blocks separatedly formed and arrayed by the main grooves and the transverse grooves, and a pair of notch grooves provided in each of the blocks and branching from the main grooves sandwiching the block for mitigating difference in rigidity between the edge portions and the central portion of the block.
    Type: Grant
    Filed: October 21, 1985
    Date of Patent: June 30, 1987
    Assignee: Bridgestone Corporation
    Inventors: Hikaru Tansei, Kenichi Motomura
  • Patent number: 4515197
    Abstract: A novel tread pattern is disclosed, which can give high performances on wet road at both the straight running and the cornering under a low load, particularly no load, to a heavy duty pneumatic radial tire without sacrificing the performances on wet road under normal load. The tread pattern comprises at least 4 lands defined by at least 3 main grooves, wherein a pair of first group lands arranged on the outermost side regions of the tread have substantially continuous along the the circumferential direction of the tread and the remaining lands located between the first group lands have notches arranged thereon in their lateral direction.
    Type: Grant
    Filed: May 4, 1983
    Date of Patent: May 7, 1985
    Assignee: Bridgestone Tire Company Limited
    Inventors: Kenichi Motomura, Hiroshi Ogawa, Akira Yamamoto, Noriyuki Hagita
  • Patent number: D275746
    Type: Grant
    Filed: September 7, 1982
    Date of Patent: October 2, 1984
    Assignee: Bridgestone Tire Company Limited
    Inventors: Kenichi Motomura, Hiroshi Ogawa
  • Patent number: D275747
    Type: Grant
    Filed: September 7, 1982
    Date of Patent: October 2, 1984
    Assignee: Bridgestone Tire Company Limited
    Inventors: Kenichi Motomura, Hiroshi Ogawa
  • Patent number: D278218
    Type: Grant
    Filed: January 7, 1983
    Date of Patent: April 2, 1985
    Assignee: Bridgestone Tire Company Limited
    Inventors: Kenichi Motomura, Seiichiro Tokunaga
  • Patent number: D281485
    Type: Grant
    Filed: January 3, 1983
    Date of Patent: November 26, 1985
    Assignee: Bridgestone Tire Company Limited
    Inventors: Kenichi Motomura, Mamoru Mamada
  • Patent number: D286033
    Type: Grant
    Filed: August 16, 1982
    Date of Patent: October 7, 1986
    Assignee: Bridgestone Tire Company Limited
    Inventors: Kenichi Motomura, Hiroshi Ogawa
  • Patent number: D301133
    Type: Grant
    Filed: June 16, 1986
    Date of Patent: May 16, 1989
    Assignee: Bridgestone Corporation
    Inventors: Toru Tsuda, Kenichi Motomura, Hidenori Masuda
  • Patent number: D304556
    Type: Grant
    Filed: January 15, 1987
    Date of Patent: November 14, 1989
    Assignee: Bridgestone Corporation
    Inventors: Toru Tsuda, Kenichi Motomura