Patents by Inventor Makoto Matsukawa

Makoto Matsukawa 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: 11411194
    Abstract: A light-emitting device (20) includes a first light-emitting member (10a) and a second light-emitting member (10b). Each of the first light-emitting member (10a) and the second light-emitting member (10b) includes a first surface (12) and a second surface (14), and light is emitted from the first surface (12). The first light-emitting member (10a) includes a first region (16a) and a second region (16b), the first region (16a) of the first light-emitting member (10a) being located on the second surface (14) side of the second light-emitting member (10b) and the second region (16b) of the first light-emitting member (10a) being located on the first surface (12) side of the second light-emitting member (10b).
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: August 9, 2022
    Assignee: PIONEER CORPORATION
    Inventors: Ayako Yoshida, Takashi Chuman, Makoto Matsukawa, Takeru Okada, Chihiro Harada, Akira Hirasawa
  • Publication number: 20200152900
    Abstract: A light-emitting device (20) includes a first light-emitting member (10a) and a second light-emitting member (10b). Each of the first light-emitting member (10a) and the second light-emitting member (10b) includes a first surface (12) and a second surface (14), and light is emitted from the first surface (12). The first light-emitting member (10a) includes a first region (16a) and a second region (16b), the first region (16a) of the first light-emitting member (10a) being located on the second surface (14) side of the second light-emitting member (10b) and the second region (16b) of the first light-emitting member (10a) being located on the first surface (12) side of the second light-emitting member (10b).
    Type: Application
    Filed: May 9, 2018
    Publication date: May 14, 2020
    Applicant: PIONEER CORPORATION
    Inventors: Ayako YOSHIDA, Takashi CHUMAN, Makoto MATSUKAWA, Takeru OKADA, Chihiro HARADA, Akira HIRASAWA
  • Publication number: 20040062189
    Abstract: A phase change type information storage medium is provided, which achieves high-speed recording/reproduction. A DVD-RW disc having a substrate formed with grooves, lands, and land pre-pits, on which are laminated a first dielectric layer, a phase-change recording layer, a second dielectric layer, a reflective layer, and an overcoat layer. The disc is rotated at a 3.49-7.0 m/sec linear speed while being irradiated with a laser beam of 600-700 nm wavelength focused by an objective lens of 0.55-0.7 numerical aperture to the phase-change recording layer from the substrate side. The phase-change recording layer is made of a Ge-In-Sb-Te material, and the reflective layer is made of an Ag-Nd-Cu material. The first dielectric layer has a 65-85 nm thickness, the phase-change recording layer has a 10-20 nm thickness, the second dielectric layer has a 13-23 nm thickness, and the reflective layer has a 100-225 nm thickness.
    Type: Application
    Filed: August 1, 2003
    Publication date: April 1, 2004
    Applicant: Pioneer Corporation
    Inventors: Makoto Matsukawa, Seiro Oshima, Takao Tagiri, Kiyoshi Nagasawa, Toshihiko Takishita
  • Patent number: 6692809
    Abstract: An optical recording medium is provided which comprises: a substrate including concentrically or spirally formed grooves each having a V-shaped cross section; a first dielectric layer formed on the substrate; a phase-change recording layer formed on the first dielectric layer; a second dielectric layer formed on the phase-change recording layer; and a metallic reflecting layer formed on the second dielectric layer. In particular, the optical recording medium is so formed that an objective lens having an aperture number of 0.55-0.70 can be used and a laser beam having a wavelength of 600-700 nm and passing through the objective lens is passed through the substrate and then converged on the recording layer, thereby recording or reproducing information on the recording layer in areas corresponding to the grooves.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: February 17, 2004
    Assignee: Pioneer Corporation
    Inventors: Makoto Matsukawa, Seiro Oshima, Toshihiko Takishita
  • Patent number: 6687214
    Abstract: A recording medium includes pairs of groove tracks and land tracks having periodically formed bent portion provided side by side on a substrate, a plurality of land prepits previously formed on the land tracks and carrying information about the groove tracks, and a recording layer formed on at least the groove tracks and the land tracks. The land prepits have a radius of mean curvature smaller than a radius of mean curvature of sides of the groove tracks in land-prepit absent regions of the land prepits and are defined by curved surfaces continuously extending from the sides of the groove tracks. Those sides of the groove tracks which face the continuous curved surfaces of the land prepits are curved surfaces that stricture the groove tracks. The depth of the land prepit is larger than that of the groove track.
    Type: Grant
    Filed: August 8, 2001
    Date of Patent: February 3, 2004
    Assignee: Pioneer Corporation
    Inventors: Masahiro Kato, Eiji Muramatsu, Atsushi Yamaguchi, Shoji Taniguchi, Seiro Oshima, Makoto Matsukawa, Takao Tagiri, Kazuhiro Yamato, Tatsuhiro Yone
  • Publication number: 20020081414
    Abstract: An optical recording medium is provided which comprises: a substrate including concentrically or spirally formed grooves each having a V-shaped cross section; a first dielectric layer formed on the substrate; a phase-change recording layer formed on the first dielectric layer; a second dielectric layer formed on the phase-change recording layer; and a metallic reflecting layer formed on the second dielectric layer. In particular, the optical recording medium is so formed that an objective lens having an aperture number of 0.55-0.70 can be used and a laser beam having a wavelength of 600-700 nm and passing through the objective lens is passed through the substrate and then converged on the recording layer, thereby recording or reproducing information on the recording layer in areas corresponding to the grooves.
    Type: Application
    Filed: December 20, 2001
    Publication date: June 27, 2002
    Applicant: Pioneer Corporation
    Inventors: Makoto Matsukawa, Seiro Oshima, Toshihiko Takishita
  • Publication number: 20020024925
    Abstract: A recording medium includes pairs of groove tracks and land tracks having periodically formed bent portion provided side by side on a substrate, a plurality of land prepits previously formed on the land tracks and carrying information about the groove tracks, and a recording layer formed on at least the groove tracks and the land tracks. The land prepits have a radius of mean curvature smaller than a radius of mean curvature of sides of the groove tracks in land-prepit absent regions of the land prepits and are defined by curved surfaces continuously extending from the sides of the groove tracks. Those sides of the groove tracks which face the continuous curved surfaces of the land prepits are curved surfaces that stricture the groove tracks. The depth of the land prepit is larger than that of the groove track.
    Type: Application
    Filed: August 8, 2001
    Publication date: February 28, 2002
    Inventors: Masahiro Kato, Eiji Muramatsu, Atsushi Yamaguchi, Shoji Taniguchi, Seiro Oshima, Makoto Matsukawa, Takao Tagiri, Kazuhiro Yamato, Tatsuhiro Yone
  • Patent number: 6169721
    Abstract: An optical recording medium has a substrate having an annular grooves, a recording layer including an organic coloring matter and formed on the substrate, and a metallic reflection layer. The recording layer has a thickness so as to have an absorbance between 0.65 and 0.75. Information is recorded in the recording layer by a laser beam having a wavelength between 600 and 700 nm, using an objective lens having a numerical aperture between 0.55 and 0.70.
    Type: Grant
    Filed: August 26, 1998
    Date of Patent: January 2, 2001
    Assignees: Pioneer Electronic Corporation, Pioneer Video Corporation
    Inventors: Toshihiko Takishita, Shinichi Hanzawa, Shigenori Murakami, Atsushi Kondo, Ayumi Mitsumori, Miki Kusama, Makoto Matsukawa
  • Patent number: 4758713
    Abstract: A banking terminal equipment is provided for processing transaction slips such as the deposit/withdrawal slip used in a bank. The equipment comprises an optical read device for which the fields of the data recorded in the transaction slip required to be sent to the upper station are located at a first read position of the slip such that the data of the fields is displayed on a display screen during a read operation on the transaction slip by the optical read device. Thereafter, if an additional data is to be inputted, the data is entered and then the contents of the display are sent to the upper station when the slip processing end key is depressed. With such a construction, the time from when the transaction slip is installed in the read device to when the slip processing end key is depressed can be reduced and hence the processing efficiency of the overall system including the upper station can be improved.
    Type: Grant
    Filed: June 25, 1987
    Date of Patent: July 19, 1988
    Assignee: Hitachi, Ltd.
    Inventor: Makoto Matsukawa
  • Patent number: D958901
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: July 26, 2022
    Assignee: TOMY COMPANY, LTD.
    Inventors: Makoto Muraki, Hiroyuki Matsukawa
  • Patent number: D960997
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: August 16, 2022
    Assignee: TOMY COMPANY, LTD.
    Inventors: Makoto Muraki, Hiroyuki Matsukawa