Patents by Inventor Tomoharu Hayashi

Tomoharu Hayashi 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: 9650278
    Abstract: The present invention provides a manufacturing method of glass formed body and a forming die which make it possible to sufficiently fill a glass material in the forming die and manufacture a glass formed body having a desired shape. The manufacturing method of glass formed body includes: heating a plate-shaped glass material; pressing the heated plate-shaped glass material by the forming die; and cooling and solidifying the glass material transferred shapes of forming surfaces of the forming die by the pressing, wherein planar-view contour shapes of the forming surfaces are non-circular, a gap formed by the forming surfaces is formed so as to become wider from an inner side toward an outer side of the forming surfaces, and pressure distribution occurring in the plate-shaped glass material in the pressing is uniform in a contour region of each of the forming surfaces.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: May 16, 2017
    Assignee: ASAHI GLASS COMPANY, LIMITED
    Inventors: Shiro Funatsu, Tomoharu Hayashi, Katsuhiro Suzuki
  • Publication number: 20150353410
    Abstract: The present invention provides a manufacturing method of glass formed body and a forming die which make it possible to sufficiently fill a glass material in the forming die and manufacture a glass formed body having a desired shape. The manufacturing method of glass formed body includes: heating a plate-shaped glass material; pressing the heated plate-shaped glass material by the forming die; and cooling and solidifying the glass material transferred shapes of forming surfaces of the forming die by the pressing, wherein planar-view contour shapes of the forming surfaces are non-circular, a gap formed by the forming surfaces is formed so as to become wider from an inner side toward an outer side of the forming surfaces, and pressure distribution occurring in the plate-shaped glass material in the pressing is uniform in a contour region of each of the forming surfaces.
    Type: Application
    Filed: June 12, 2015
    Publication date: December 10, 2015
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Shiro FUNATSU, Tomoharu HAYASHI, Katsuhiro SUZUKI
  • Publication number: 20140202212
    Abstract: A press forming apparatus includes a mounting plate, a heating mechanism, and a die. The mounting plate supports a glass material on an upper surface of the mounting plate. The heating mechanism heats the glass material on the mounting plate to a temperature which allows press formation of the glass material. The die is provided to face the upper surface of the mounting plate and press forms the glass material heated by the heating mechanism between the die and the mounting plate.
    Type: Application
    Filed: March 24, 2014
    Publication date: July 24, 2014
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Koki MORIYA, Tomoharu HAYASHI, Kohei HORIUCHI, Keisuke YOSHIKUNI
  • Patent number: 4395597
    Abstract: A speaker diaphragm assembly comprises a body made of a foam resin, and a sound radiating surface portion integrally formed with the body. In one embodiment, the sound radiating surface portion is made of a foam resin the density of which is greater than that at the body. In another embodiment, the sound radiating surface portion comprises a thin layer made of a solid resin, which thin layer is welded to the body. The rear end portion of the body may be reinforced in the same manner. In another embodiment, a supporting member is attached to the side surface of the diaphragm body for increasing the efficiency in vibration transmission from the voice coil. In another embodiment, a ring-like recess is made in the side surface of the body for spaced electrical terminals, to which heat is transmitted from the voice coil via lead wires, from the body, while a sub cone having low thermal conductivity is sandwiched between the lead wires and the body.
    Type: Grant
    Filed: September 24, 1980
    Date of Patent: July 26, 1983
    Assignee: Victor Company of Japan, Limited
    Inventors: Kiyoaki Suzuki, Masaru Watanabe, Hisashi Yamamoto, Tomoharu Hayashi, Takuji Miura
  • Patent number: 4384174
    Abstract: The diaphragm of a speaker is supported by a viscous supporting member placed in an annular gap defined between the periphery of the diaphragm and the inner surface of a frame structure and by a conventional damper. Grooves may be made in the periphery of the diaphragm and in the inner surface of the frame structure for receiving some portions of the viscous supporting member. In another embodiment, a film made of a resin is welded to the front surface of a diaphragm body which is made of a foam resin. In other embodiments, one or more reinforcing members are fixedly adhered to both the voice coil bobbin and the flat rear surface of the diaphragm.
    Type: Grant
    Filed: October 2, 1980
    Date of Patent: May 17, 1983
    Assignee: Victor Company of Japan, Limited
    Inventors: Kiyoaki Suzuki, Masaru Watanabe, Hisashi Yamamoto, Tomoharu Hayashi, Takuji Miura