Patents by Inventor Kiyoshi Fujihara

Kiyoshi Fujihara 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: 20230059013
    Abstract: A light source module includes a first semiconductor laser element hermetically sealed, a second semiconductor laser element hermetically sealed, and firth to fourth optical elements. A first laser beam prior to reaching the first optical element has divergence angle ?fd1 in a direction along a second optical axis and divergence angle ?sd1 in a direction along a third optical axis, and satisfy 90°>?fd1>?sd1>0°. Divergence angle ?fd12 of a first laser beam in the direction along the second optical axis decreases from divergence angle ?fd1, the first laser beam having exited the first optical element. A component of a first laser beam in the direction along the second optical axis is collimated, the first laser beam having exited the second optical element. The same applies to the second semiconductor laser element.
    Type: Application
    Filed: November 8, 2022
    Publication date: February 23, 2023
    Inventors: Masayuki HATA, Kazuhiko YAMANAKA, Kiyoshi FUJIHARA, Shinji YOSHIDA
  • Patent number: 11035280
    Abstract: A CO2 trapping device mounted in a hybrid vehicle, provided with a branch passage branched from an exhaust passage, a CO2 trapping part provided at the branch passage and trapping CO2 in inflowing exhaust gas, a cooling part using electric power of the battery to cool the CO2 trapping part, a flow controlling part controlling an amount of flow of the exhaust gas flowing into the branch passage, and a CO2 trapping control part controlling the cooling part and the flow controlling part, the CO2 trapping control part controlling the flow controlling part so as to make the cooling part stop cooling and to shut off the flow of the exhaust gas to the CO2 trapping part when a charging rate of the battery becomes a predetermined SOC threshold value or less.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: June 15, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kiyoshi Fujihara, Kouseki Sugiyama, Hiroshi Ohtsuki, Daiki Yokoyama, Yushi Seki
  • Publication number: 20200400058
    Abstract: A CO2 trapping device mounted in a hybrid vehicle, provided with a branch passage branched from an exhaust passage, a CO2 trapping part provided at the branch passage and trapping CO2 in inflowing exhaust gas, a cooling part using electric power of the battery to cool the CO2 trapping part, a flow controlling part controlling an amount of flow of the exhaust gas flowing into the branch passage, and a CO2 trapping control part controlling the cooling part and the flow controlling part, the CO2 trapping control part controlling the flow controlling part so as to make the cooling part stop cooling and to shut off the flow of the exhaust gas to the CO2 trapping part when a charging rate of the battery becomes a predetermined SOC threshold value or less.
    Type: Application
    Filed: May 28, 2020
    Publication date: December 24, 2020
    Inventors: Kiyoshi FUJIHARA, Kouseki SUGIYAMA, Hiroshi OHTSUKI, Daiki YOKOYAMA, Yushi SEKI
  • Patent number: 10641150
    Abstract: An exhaust treatment catalyst (5) is arranged in the engine exhaust passage, and hydrogen generated in the reformer (6) is supplied through the hydrogen supply pipe (13) to the inside of the engine exhaust passage upstream of the exhaust treatment catalyst (5). Heat exchange fins (15) for heat exchange with exhaust gas flowing through the inside of the engine exhaust passage are formed on the outer circumferential surface of the hydrogen supply pipe (13) inserted inside the engine exhaust passage.
    Type: Grant
    Filed: February 11, 2019
    Date of Patent: May 5, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yasumasa Notake, Hiromasa Nishioka, Keishi Takada, Tetsuya Sakuma, Kiyoshi Fujihara
  • Publication number: 20190316505
    Abstract: An exhaust treatment catalyst (5) is arranged in the engine exhaust passage, and hydrogen generated in the reformer (6) is supplied through the hydrogen supply pipe (13) to the inside of the engine exhaust passage upstream of the exhaust treatment catalyst (5). Heat exchange fins (15) for heat exchange with exhaust gas flowing through the inside of the engine exhaust passage are formed on the outer circumferential surface of the hydrogen supply pipe (13) inserted inside the engine exhaust passage.
    Type: Application
    Filed: February 11, 2019
    Publication date: October 17, 2019
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yasumasa NOTAKE, Hiromasa NISHIOKA, Keishi TAKADA, Tetsuya SAKUMA, Kiyoshi FUJIHARA
  • Patent number: 8866279
    Abstract: A semiconductor device includes: a lead frame; a semiconductor element held by the lead frame; a frame body which is formed on the lead frame to surround the semiconductor element, cover a side surface of the lead frame, and expose a bottom surface of the lead frame; and a protective resin filling a region surrounded by the frame body. The lead frame includes an uneven part formed in a section which is part of an upper surface of the lead frame, and is covered with the frame body.
    Type: Grant
    Filed: January 22, 2013
    Date of Patent: October 21, 2014
    Assignee: Panasonic Corporation
    Inventors: Yuu Hasegawa, Tooru Aoyagi, Kenichi Ito, Toshiyuki Fukuda, Kiyoshi Fujihara, Masanori Nishino
  • Patent number: 8669571
    Abstract: A light distribution controller of a light-emitting device includes a first optical member formed of ZnO disposed over an LED interposing a transparent adhesive, and a second optical member which covers the first optical member. The first optical member includes a first concave portion having an opening in a regular hexagon shape whose area gradually increases. In the first concave portion, inner wall surfaces having inclined surfaces, each of whose bases is formed by one side of the hexagon of the opening shape, are formed. Outside of the first optical member, outer wall surfaces each having a trapezoidal shape are formed. The second optical member includes a second concave portion arranged so that light at an annular peak in the light distribution characteristic of the light traveled through the first optical member is totally reflected.
    Type: Grant
    Filed: July 4, 2011
    Date of Patent: March 11, 2014
    Assignee: Panasonic Corporation
    Inventors: Akihiko Murai, Masahiro Kume, Akiko Nakamura, Tooru Aoyagi, Kiyoshi Fujihara
  • Patent number: 8525307
    Abstract: A semiconductor device includes a lead frame, a semiconductor element mounted on the lead frame, and a frame-like member formed on the lead frame, surrounding the semiconductor element, and covering a side surface of the lead frame and exposing a lower surface of the lead frame. The frame-like member has at least one concave portion in a side surface thereof. The concave portion has a ceiling portion located at the same height as or lower than an upper surface of the lead frame, and a bottom portion located higher than the lower surface of the lead frame.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: September 3, 2013
    Assignee: Panasonic Corporation
    Inventors: Kenichi Ito, Shigehisa Oonakahara, Yoshikazu Tamura, Kiyoshi Fujihara
  • Publication number: 20130075776
    Abstract: A light distribution controller of a light-emitting device includes a first optical member formed of ZnO disposed over an LED interposing a transparent adhesive, and a second optical member which covers the first optical member. The first optical member includes a first concave portion having an opening in a regular hexagon shape whose area gradually increases. In the first concave portion, inner wall surfaces having inclined surfaces, each of whose bases is formed by one side of the hexagon of the opening shape, are formed. Outside of the first optical member, outer wall surfaces each having a trapezoidal shape are formed. The second optical member includes a second concave portion arranged so that light at an annular peak in the light distribution characteristic of the light traveled through the first optical member is totally reflected.
    Type: Application
    Filed: July 4, 2011
    Publication date: March 28, 2013
    Applicant: PANASONIC CORPORATION
    Inventors: Akihiko Murai, Masahiro Kume, Akiko Nakamura, Tooru Aoyagi, Kiyoshi Fujihara
  • Publication number: 20120305973
    Abstract: To provide a light emitting device which emits high-luminance, uniform white light with reduced variations in luminance, a light emitting element 101 is mounted on a substrate 105 and covered with a wavelength conversion layer 106 of uniform thickness, and then a light scattering layer 107 made of a translucent resin containing a light reflecting material is formed. As the light scattering layer 107, a high density region 109 in which a density of the light reflecting material is high is formed immediately above a central part of a light emitting surface of the light emitting element 101, and a low density region 110 in which the density of the light reflecting material is low is formed around a region immediately above the central part of the light emitting surface of the light emitting element. A translucent resin layer 108 is formed on the light scattering layer 107.
    Type: Application
    Filed: January 25, 2011
    Publication date: December 6, 2012
    Inventors: Yoshihiko Chosa, Takashi Kuwaharada, Kiyoshi Fujihara, Kenichi Koya
  • Publication number: 20120025361
    Abstract: A semiconductor device includes a lead frame, a semiconductor element mounted on the lead frame, and a frame-like member formed on the lead frame, surrounding the semiconductor element, and covering a side surface of the lead frame and exposing a lower surface of the lead frame. The frame-like member has at least one concave portion in a side surface thereof. The concave portion has a ceiling portion located at the same height as or lower than an upper surface of the lead frame, and a bottom portion located higher than the lower surface of the lead frame.
    Type: Application
    Filed: July 27, 2011
    Publication date: February 2, 2012
    Inventors: Kenichi ITO, Shigehisa Oonakahara, Yoshikazu Tamura, Kiyoshi Fujihara
  • Patent number: 7440386
    Abstract: A copper frame plate (2) has a central frame plate (2a) and a pair of side frame plates (2c) bent from both ends of the central frame plate. A flexible substrate (3) has a central substrate (3a) covering the central frame plate and bent substrates (3b) bent from the central substrate so as to cover the side frame plates. An optical element (4) is mounted on the central frame plate. A plurality of internal wiring terminals (9) connected to the optical element are disposed on the central substrate and arranged in the width direction (W) along which the pair of side frame plates are opposed to each other. A plurality of external wiring terminals (11) used for connection to external equipment are disposed on the bent substrates and arranged in the length direction (L) orthogonal to the width direction.
    Type: Grant
    Filed: October 20, 2005
    Date of Patent: October 21, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masaya Tateyanagi, Masanori Minamio, Shigeki Okamoto, Kiyoshi Fujihara
  • Patent number: 7280573
    Abstract: The semiconductor laser unit includes: a metal plate having a center portion wider than the remaining portions; a flexible substrate having a first opening; a substrate mounted on the center portion; a semiconductor laser placed on the substrate; a frame having a second opening and fixing the flexible substrate in the state of being bent along from the top surface to both side faces of the metal plate; and an optical element covering the second opening. The flexible substrate is fixed so that the first opening extends over the top surface and both side faces of the center portion.
    Type: Grant
    Filed: July 5, 2006
    Date of Patent: October 9, 2007
    Assignee: Matsushita Electirc Industrial Co., Ltd.
    Inventors: Kiyoshi Fujihara, Masaya Tateyanagi, Shigeki Okamoto
  • Patent number: 7264407
    Abstract: An optical device includes a copper plate, light receiving elements mounted on the copper plate, a light emitting element mounted on the light receiving elements, a flexible substrate bent to cover portions of upper and side surfaces of the copper plate, and a positioning frame of metal for fixing the flexible substrate and the copper plate to each other. Since the positioning frame secures the flexible substrate and the copper plate against movement, a thin optical device can be attained without employing a resin-molded construction.
    Type: Grant
    Filed: November 4, 2004
    Date of Patent: September 4, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Shigeki Okamoto, Masaya Tateyanagi, Masanori Mimamio, Kiyoshi Fujihara, Hiroyuki Ishida, Toshiyuki Fukuda
  • Publication number: 20070008862
    Abstract: The semiconductor laser unit includes: a metal plate having a center portion wider than the remaining portions; a flexible substrate having a first opening; a substrate mounted on the center portion; a semiconductor laser placed on the substrate; a frame having a second opening and fixing the flexible substrate in the state of being bent along from the top surface to both side faces of the metal plate; and an optical element covering the second opening. The flexible substrate is fixed so that the first opening extends over the top surface and both side faces of the center portion.
    Type: Application
    Filed: July 5, 2006
    Publication date: January 11, 2007
    Inventors: Kiyoshi Fujihara, Masaya Tateyanagi, Shigeki Okamoto
  • Publication number: 20060092812
    Abstract: A copper frame plate (2) has a central frame plate (2a) and a pair of side frame plates (2c) bent from both ends of the central frame plate. A flexible substrate (3) has a central substrate (3a) covering the central frame plate and bent substrates (3b) bent from the central substrate so as to cover the side frame plates. An optical element (4) is mounted on the central frame plate. A plurality of internal wiring terminals (9) connected to the optical element are disposed on the central substrate and arranged in the width direction (W) along which the pair of side frame plates are opposed to each other. A plurality of external wiring terminals (11) used for connection to external equipment are disposed on the bent substrates and arranged in the length direction (L) orthogonal to the width direction.
    Type: Application
    Filed: October 20, 2005
    Publication date: May 4, 2006
    Applicant: Matsushita Electric Industrial Co., LTD.
    Inventors: Masaya Tateyanagi, Masanori Minamio, Shigeki Okamoto, Kiyoshi Fujihara
  • Publication number: 20060078021
    Abstract: The present invention provides a semiconductor laser unit which realizes efficient heat dissipation, reduction in size, high-density integration of optical elements, prevention of a light-receiving element from being polluted with dust, and simple structure for easy assembly.
    Type: Application
    Filed: October 12, 2005
    Publication date: April 13, 2006
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kiyoshi Fujihara, Masanori Minamio, Masaya Tateyanagi, Shigeki Okamoto
  • Publication number: 20050152634
    Abstract: An optical device includes a copper plate, light receiving elements mounted on the copper plate, a light emitting element mounted on the light receiving elements, a flexible substrate bent to cover portions of upper and side surfaces of the copper plate, and a positioning frame of metal for fixing the flexible substrate and the copper plate to each other. Since the positioning frame secures the flexible substrate and the copper plate against movement, a thin optical device can be attained without employing a resin-molded construction.
    Type: Application
    Filed: November 4, 2004
    Publication date: July 14, 2005
    Inventors: Shigeki Okamoto, Masaya Tateyanagi, Masanori Mimamio, Kiyoshi Fujihara, Hiroyuki Ishida, Toshiyuki Fukuda
  • Publication number: 20050094694
    Abstract: An object of the present invention is to provide a semiconductor laser device that has a simple structure that can easily be constructed, and can dissipate heat easily, and can improve its functionality and realize miniaturizing concurrently. The semiconductor laser device composes a metal plate 100 that is substantially the same as the bigger one of the widths of the silicon substrate 120 and the flexible sheet 130, a semiconductor laser element 110, a silicon substrate 120 into which a light detection circuit and a signal processing circuit are integrated, a flexible sheet 130, a wire 140 and an optical element 150. The flexible sheet 130 is divided into two on the metal plate 100, and the two divided flexible sheet 130 are positioned face to face sandwiching the silicon substrate 120.
    Type: Application
    Filed: November 3, 2004
    Publication date: May 5, 2005
    Inventors: Kiyoshi Fujihara, Akira Ueno, Yoshiaki Matsuda, Hideyuki Nakanishi
  • Patent number: 6822997
    Abstract: The invention provides a semiconductor laser module and an optical transmission system, with which noise caused by light reflected back from a transmission path can be suppressed. The semiconductor laser module, includes a package having a window, a semiconductor laser chip outputting light, a lens that is optically designed such that it couples the light that is output by the semiconductor laser chip into an optical transmission path, an optical isolator that is disposed between the lens and the window, a temperature control mechanism for keeping temperature of these components constant, and a tubular ferrule that is holds and covers the optical transmission path. The semiconductor laser chip, the lens, the optical isolator, and the temperature control mechanism are arranged inside the package. A polarizer is arranged at an end face of the ferrule on the side of the package, such that the polarizer matches a polarization plane of the light that is emitted through the window of the package.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: November 23, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kiyoshi Fujihara, Jun Ohya