Patents by Inventor Yoshio Otsuka

Yoshio Otsuka 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: 9379684
    Abstract: The recorder includes: a converter acquiring external sound and converting the sound into a first signal; an amplifier amplifying the first signal to generate a second signal; a recording unit recording the second signal; a display unit displaying a level of the second signal; and a controller controlling the amplifier and the display unit. The amplifier includes an ALC (automatic level control) unit adjusting an amplification degree for amplifying the first signal according to the level of the second signal. The controller allows a choice of whether or not to cause the ALC unit to operate, allows a choice of whether to display or hide the level of the second signal on the display unit when the automatic level control unit operates, and keeps the level of the second signal displayed on the display unit when the automatic level control unit does not operate.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: June 28, 2016
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Yoshio Otsuka
  • Publication number: 20150194931
    Abstract: The recorder includes: a converter acquiring external sound and converting the sound into a first signal; an amplifier amplifying the first signal to generate a second signal; a recording unit recording the second signal; a display unit displaying a level of the second signal; and a controller controlling the amplifier and the display unit. The amplifier includes an ALC (automatic level control) unit adjusting an amplification degree for amplifying the first signal according to the level of the second signal. The controller allows a choice of whether or not to cause the ALC unit to operate, allows a choice of whether to display or hide the level of the second signal on the display unit when the automatic level control unit operates, and keeps the level of the second signal displayed on the display unit when the automatic level control unit does not operate.
    Type: Application
    Filed: December 16, 2014
    Publication date: July 9, 2015
    Inventor: Yoshio OTSUKA
  • Patent number: 9017146
    Abstract: The wafer polishing apparatus comprises a polishing plate, a polishing head capable of holding a wafer, and a slurry supplying section. The polishing plate includes: a plurality of concentric polishing zones, each of which has a prescribed width for polishing the wafer and on each of which a polishing cloth is adhered; and a groove for discharging slurry being formed between the polishing zones. A head cleaning section, which cleans the polishing head, or a wafer cleaning section, which cleans the polished wafer, is provided to a center part of the polishing plate and located on the inner side of the innermost polishing zone.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: April 28, 2015
    Assignees: Fujikoshi Machinery Corp., National Institute of Advanced Industrial Science and Technology
    Inventors: Yoshio Nakamura, Yoshio Otsuka, Takashi Okubo, Kazutaka Shibuya, Takayuki Fuse, Shiro Hara, Sommawan Khumpuang, Shinichi Ikeda
  • Publication number: 20140154958
    Abstract: The wafer polishing apparatus comprises a polishing plate, a polishing head capable of holding a wafer, and a slurry supplying section. The polishing plate includes: a plurality of concentric polishing zones, each of which has a prescribed width for polishing the wafer and on each of which a polishing cloth is adhered; and a groove for discharging slurry being formed between the polishing zones. A head cleaning section, which cleans the polishing head, or a wafer cleaning section, which cleans the polished wafer, is provided to a center part of the polishing plate and located on the inner side of the innermost polishing zone.
    Type: Application
    Filed: December 4, 2013
    Publication date: June 5, 2014
    Applicants: National Institute of Advanced Industrial Science and Technology, Fujikoshi Machinery Corp.
    Inventors: Yoshio NAKAMURA, Yoshio OTSUKA, Takashi OKUBO, Kazutaka SHIBUYA, Takayuki FUSE, Shiro HARA, Sommawan KHUMPUANG, Shinichi IKEDA
  • Patent number: 7163053
    Abstract: A method for adjusting temperature of a machining liquid, e.g., slurry, etching liquid, by passing the machining liquid through a heat exchanger. The heat exchanger, which adjusts the temperature of the machining liquid, includes a ceramic heat exchanging tube which is made by baking silicon carbide (SiC).
    Type: Grant
    Filed: April 16, 2004
    Date of Patent: January 16, 2007
    Assignee: Fujikoshi Machinery Corp.
    Inventors: Yoshio Nakamura, Yoshio Otsuka
  • Publication number: 20040194937
    Abstract: A method for adjusting temperature of a machining liquid, e.g., slurry, etching liquid, by passing the machining liquid through a heat exchanger. The heat exchanger, which adjusts the temperature of the machining liquid, includes a ceramic heat exchanging tube which is made by baking silicon carbide (SiC).
    Type: Application
    Filed: April 16, 2004
    Publication date: October 7, 2004
    Applicant: Fujikoshi Machinery Corp.
    Inventors: Yoshio Nakamura, Yoshio Otsuka
  • Publication number: 20020056548
    Abstract: The heat exchanger of the present invention is capable of easily adjusting temperature of a machining liquid, e.g., slurry, etching liquid. The heat exchanger of the present invention, which adjusts temperature of the machining liquid, comprises a ceramic heat exchanging tube, which is made by baking silicon carbide (SiC).
    Type: Application
    Filed: December 5, 2001
    Publication date: May 16, 2002
    Applicant: Fujikoshi Machinery Corp.
    Inventors: Yoshio Nakamura, Yoshio Otsuka
  • Patent number: 6319100
    Abstract: The disk edge polishing machine is capable of polishing an inner edge of a center hole of a disk and an outer edge thereof. In the disk edge polishing machine, a sucking member has a cylindrical end section. The sucking member sucks the disk by the cylindrical end section and exposes the inner edge and the outer edge of the disk. The sucking member spins together with the disk. An outer polishing member polishes the outer edge of the disk. An inner polishing member is inserted into the center hole and simultaneously polishes the inner edge of the disk. A first driving mechanism relatively moves the outer polishing member and the sucking member close to and away from the outer edge of the disk along a predetermined course. A second driving mechanism relatively moves the inner polishing member and the sucking member close to and away from the inner edge of the disk along another predetermined course extended from the predetermined course.
    Type: Grant
    Filed: May 5, 2000
    Date of Patent: November 20, 2001
    Assignee: Fujikoshi Kikai Kogyo Kabushiki Kaisha
    Inventors: Yasuhide Denda, Satoru Kitta, Kiyokazu Gonda, Yoshio Nakamura, Yoshio Otsuka, Toshiaki Seki, Takuya Kakegawa, Atsushi Kajikura
  • Patent number: 4808275
    Abstract: A rotor of a disc brake is coated with a nickel coating containing ceramic particles in a dispersed state and having a thickness not less than 2 .mu.m, thereby improving corrosion resistance while minimizing torque fluctuation of the rotor during braking. The nickel coating is formed on the surface of the rotor by composite plating in which nickel and the ceramic particles are simultaneously electrodeposited on the surface of the rotor. An annular jig surrounding the outer periphery of the rotor is used to insure a uniform coating thickness.
    Type: Grant
    Filed: November 2, 1987
    Date of Patent: February 28, 1989
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Takashi Ohzora, Yoshio Otsuka, Kazuo Hoshino
  • Patent number: 4680785
    Abstract: A personal-call communication system wherein a personal identification number is assigned to each telephone user, and an arbitrary person is called by wireless by dialing a corresponding personal calling number. The called person sets an ID-card-type portable device memorizing one's own personal identification information in a card reader of a telephone set, and communicates with the calling party over the wire system via an exchange. The system allows a direct call of an individual person, who in turn has a choice as to whether or not a response should be taken depending on the calling party whose name is indicated to the called party.
    Type: Grant
    Filed: October 3, 1984
    Date of Patent: July 14, 1987
    Assignee: Nippo Communication Industrial Co., Ltd.
    Inventors: Tadahiko Akiyama, Yoshio Otsuka
  • Patent number: 4264111
    Abstract: An anti-skid device is provided with valving which establishes a first normal pressure transmission path between the master cylinder and the wheel brake cylinders via which an anti-skid pressure reduction can be effected to prevent lock up of the wheels and a second fail safe pressure transmission path which is established in place of the first path upon a malfunction or the like in a source of hydraulic pressure associated with the anti-skid device. The valving is characterized by a valve which is held open (establishing the first pressure transmission path) by abutment with a spool formed with a bore therein. The bore is closed at this time by the stem of the valve which seats in the mouth thereof until the spool moves in response to pump failure or the like to first allow the valve to seat (closing the first path) and subsequently move sufficiently to bring the stem out of contact with the bore mouth (opening the second fail safe path without overlap with the first).
    Type: Grant
    Filed: June 5, 1979
    Date of Patent: April 28, 1981
    Assignee: Nissan Motor Company, Limited
    Inventors: Kazuaki Shimizu, Yoshio Otsuka
  • Patent number: 4240672
    Abstract: A flow restriction between the control chamber of the expansion valve of the anti-skid device and the pump of the device prevents the expansion valve from moving as soon as the spool valve arrangement which opens the fail safe pressure transmission path and closes the normal path. The expansion chamber of the expansion valve is thus, in the case of pump failure, isolated from the pressure reservoir like effect of the pressure stored in the wheel cylinder(s) and the conduit between the skid device and the wheel cylinder(s) and therefore does not move as far before pressure equalization occurs across the expansion valve as in the case when a normal anti-skid operation is performed and the pressure in the wheel cylinder and the conduit is fully received in the expansion chamber. A switch incorporated in the anti-skid device is closed only when the expansion valve moves beyond the position assumed during pump failure.
    Type: Grant
    Filed: March 26, 1979
    Date of Patent: December 23, 1980
    Assignee: Nissan Motor Company, Limited
    Inventors: Masayuki Tokunaga, Yoshio Otsuka