Patents by Inventor Yoshiaki Otsuka

Yoshiaki 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).

  • Publication number: 20240115998
    Abstract: It is an object of the present invention to provide an exhaust gas purifying catalyst filter which has enhanced soot collection performance without increasing pressure loss caused by the formation of a catalyst layer in a partition wall of a wall flow type substrate. A gasoline engine exhaust gas purifying catalyst filter for purifying exhaust gas of a gasoline engine includes: a wall flow type substrate in which an introduction-side cell having an open exhaust gas introduction-side end, and a discharge-side cell adjacent to the introduction-side cell and having an open exhaust gas discharge-side end are defined by a porous partition wall; and a catalyst layer formed in a pore of the partition wall. An absolute value of a maldistribution degree of the catalyst layer formed in the pore of the partition wall is 4.50 or less. A wash coat amount, excluding a mass of a platinum group, of the catalyst layer formed in the pore of the partition wall, is 40 g/L or more and 50 g/L or less.
    Type: Application
    Filed: January 26, 2022
    Publication date: April 11, 2024
    Applicants: HONDA MOTOR CO., LTD., N.E. CHEMCAT CORPORATION
    Inventors: Takeshi MORI, Shinichiro OTSUKA, Yoshiaki HATAKEYAMA, Mahiro SHIROTORI
  • Patent number: 6339703
    Abstract: A diversity reception system used for a mobile radio communication system of a sector type is constructed using single-directivity transmitting-receiving antennas and a non-directivity receiving antenna, all of which are fixed to a support pole such as a steel pipe pole and a steel tower. The single-directivity transmitting-receiving antennas are fixed to a peripheral surface of the support pole and are arranged in directions corresponding to sectors respectively. The non-directivity receiving antenna is fixed to a head portion of the support pole and is arranged above the single-directivity transmitting-receiving antennas by a prescribed interval of distance, which corresponds to at least nine wavelengths of radio waves. The single-directivity transmitting-receiving antennas are connected to transceivers, each containing a diversity receiver, respectively.
    Type: Grant
    Filed: June 26, 1998
    Date of Patent: January 15, 2002
    Assignee: NEC Corporation
    Inventor: Yoshiaki Otsuka
  • Patent number: 5786050
    Abstract: A multilayer laminated film pouch disclosed has an easy opening characteristics. The layers of the film is composed of an innermost film containing linear low density polyethylene, an intermediate film made of oriented polyolefin, an outermost film made of biaxially oriented nylon and/or PET.
    Type: Grant
    Filed: August 26, 1996
    Date of Patent: July 28, 1998
    Assignee: Toyo Seikan Kaisha, Ltd.
    Inventors: Yoshiaki Otsuka, Hiroshi Hasegawa, Shoji Ito, Hideaki Masuo
  • Patent number: 5312659
    Abstract: A laminated film bag is made of laminated films each composed of an outermost layer formed of a polyester resin film, an innermost layer formed of a polyolefin resin film and an intermediate layer formed of an aluminum foil, the polyolefin resin film has formed thereon score lines having a depth of 1/20 to 2/3 of the thickness of the polyolefin resin film and an opening width of 0.5 to 7 mm, at intervals of 1 to 15 mm.
    Type: Grant
    Filed: June 23, 1992
    Date of Patent: May 17, 1994
    Assignee: Toyo Seikan Kaisha Ltd.
    Inventors: Yoshiaki Otsuka, Hideaki Masuo, Yotaro Tsutsumi
  • Patent number: 4311742
    Abstract: Disclosed is a retort-sterilizable laminated pouch having an excellent loading pressure resistance, which comprises two laminated sheets, each comprising a flexible gas-barrier substrate and a heat-sealable crystalline olefin resin layer formed on one surface of said substrate, said laminated sheets being piled in the form of a pouch where the olefin resin layers confront each other and the periphery of the pouch of the piled sheets being heat-sealed, wherein the crystalline olefin resin layer is composed of polyethylene having a flow ratio (Kp), defined by the following formula, of at least 165: ##EQU1## wherein MI.sub.2 stands for the melt index (g/10 min) as determined according to the condition E of ASTM D-1238 and MI.sub.20 stands for the melt index (g/10 min) as determined according to the condition E of ASTM D-1238 except that the load is changed to 20.0 Kg and the sample collecting time is changed to 30 seconds, and a density of at least 0.935 g/cc.
    Type: Grant
    Filed: August 21, 1980
    Date of Patent: January 19, 1982
    Assignee: Toyo Seikan Kaisha, Ltd.
    Inventor: Yoshiaki Otsuka