Patents by Inventor Tadahiro Yamaji

Tadahiro Yamaji 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: 10434437
    Abstract: An evaporation device including an agitation vessel to which raw material liquid is supplied. The agitation vessel has a volatile component outlet and a concentrate outlet, a jacket provided on an outer circumference and configured to heat an inner wall, and a liquid-distributing portion configured to cause the raw material liquid to flow down the inner wall. The agitation vessel includes storage portion surrounded by a bottom, the inner wall, and a partition wall portion configured to temporarily store the raw material liquid that flows down, the liquid-distributing portion is constituted by a rotating shaft and at least one channel part having a flow passage which, as the rotating shaft rotates, the raw material liquid temporarily stored in the storage portion flows upward from a lower side of the agitation vessel. The channel part is mounted to the rotating shaft, and the concentrate outlet is provided in the bottom.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: October 8, 2019
    Assignee: Kansai Chemical Engineering Co., Ltd.
    Inventors: Tadahiro Mukaida, Hiroshi Yamaji, Hideo Noda
  • Patent number: 9046668
    Abstract: There is provided an optical module in which leaked light or the like from a plurality of optical elements on the same substrate is made less likely to affect adjacent optical elements, and a cross-talk noise can be thereby significantly reduced. The optical module includes an internal waveguide in a first trench of a substrate, a mirror section, and optical elements. A plurality of the first trenches of the substrate are formed independently of each other and substantially in parallel with each other, and lengths of adjacent first trenches from the end surface of the substrate are made different from each other. The optical elements are mounted on the surface of the substrate so as to oppose the minor sections formed at the tip portions of the first trenches having the different lengths.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: June 2, 2015
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Takuya Matsumoto, Nobuyuki Asahi, Yutaka Kinugasa, Tadahiro Yamaji, Makoto Nishimura
  • Patent number: 8768122
    Abstract: Disclosed is an optical module which improves optical coupling efficiency either when configured to receive an optical signal from an optical fiber with a light receiving element or when configured to receive an optical signal from a light emitting element with an optical fiber. The optical module includes: a substrate (1) having in the surface thereof a first groove (1a) and a second groove (1b) formed, with this second groove (1b) being configured to have a substantially V-shaped cross section formed deeper than the first groove and being formed in continuation from the first groove; and an internal waveguide (16) provided within the first groove (1a) of the substrate (1).
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: July 1, 2014
    Assignee: Panasonic Corporation
    Inventors: Tadahiro Yamaji, Nobuyuki Asashi, Hiroyuki Yagyu, Yutaka Kinugasa, Takuya Matsumoto, Tsutomu Niiho
  • Publication number: 20140119690
    Abstract: There is provided an optical module in which leaked light or the like from a plurality of optical elements on the same substrate is made less likely to affect adjacent optical elements, and a cross-talk noise can be thereby significantly reduced. The optical module includes an internal waveguide in a first trench of a substrate, a mirror section, and optical elements. A plurality of the first trenches of the substrate are formed independently of each other and substantially in parallel with each other, and lengths of adjacent first trenches from the end surface of the substrate are made different from each other. The optical elements are mounted on the surface of the substrate so as to oppose the minor sections formed at the tip portions of the first trenches having the different lengths.
    Type: Application
    Filed: June 14, 2012
    Publication date: May 1, 2014
    Applicant: PANASONIC CORPORATION
    Inventors: Takuya Matsumoto, Nobuyuki Asahi, Yutaka Kinugasa, Tadahiro Yamaji, Makoto Nishimura
  • Patent number: 8391657
    Abstract: An optical module includes an emitter-side mounting substrate, a receiver-side mounting substrate and an external waveguide substrate. The mounting substrate is provided with a waveguide having a core and a pair of fitting recesses. The external waveguide substrate is provided with an external waveguide having a core, a pair of fitting tabs and a lap joint portion. As the fitting tabs are fitted into the respective fitting recesses, the mounting substrate) and the external waveguide substrate are joined together, the two cores are aligned with each other, and the lap joint portion is positioned to overlap the mounting substrate.
    Type: Grant
    Filed: June 26, 2008
    Date of Patent: March 5, 2013
    Assignee: Panasonic Corporation
    Inventors: Nobuyuki Asahi, Makoto Nisimura, Nobuyuki Miyagawa, Hiroyuki Yagyu, Yuichi Uchida, Yutaka Kinugasa, Tadahiro Yamaji, Takuya Matsumoto
  • Publication number: 20120321250
    Abstract: Disclosed is an optical module which improves optical coupling efficiency either when configured to receive an optical signal from an optical fiber with a light receiving element or when configured to receive an optical signal from a light emitting element with an optical fiber. The optical module includes: a substrate (1) having in the surface thereof a first groove (1a) and a second groove (1b) formed, with this second groove (1b) being configured to have a substantially V-shaped cross section formed deeper than the first groove and being formed in continuation from the first groove; and an internal waveguide (16) provided within the first groove (1a) of the substrate (1).
    Type: Application
    Filed: February 23, 2011
    Publication date: December 20, 2012
    Applicant: PANASONIC CORPORATION
    Inventors: Tadahiro Yamaji, Nobuyuki Asashi, Hiroyuki Yagyu, Yutaka Kinugasa, Takuya Matsumoto, Tsutomu Niiho
  • Publication number: 20100220957
    Abstract: An optical module includes an emitter-side mounting substrate, a receiver-side mounting substrate and an external waveguide substrate. The mounting substrate is provided with a waveguide having a core and a pair of fitting recesses. The external waveguide substrate is provided with an external waveguide having a core, a pair of fitting tabs and a lap joint portion. As the fitting tabs are fitted into the respective fitting recesses, the mounting substrate and the external waveguide substrate are joined together, the two cores are aligned with each other, and the lap joint portion is positioned to overlap the mounting substrate.
    Type: Application
    Filed: June 26, 2008
    Publication date: September 2, 2010
    Applicant: PANASONIC ELECTRIC WORKS CO., LTD.
    Inventors: Nobuyuki Asahi, Makoto Nisimura, Nobuyuki Miyagawa, Hiroyuki Yagyu, Yuichi Uchida, Yutaka Kinugasa, Tadahiro Yamaji, Takuya Matsumoto
  • Patent number: 7580593
    Abstract: In an optical attenuator, there are a first optical waveguide 3A connected to an input optical waveguide 1, a second optical waveguide 3B connected to an output optical waveguide 2 and a connecting optical waveguide 4, which are connected with each other in series. A first recess 13A and a second recess 13B are formed in a positional relationship of opposite directions with respect to an axial direction of an optic axis of light that is inputted through the input optical waveguide 1, transmitted through the first optical waveguide 3A, the connecting optical waveguide 4 and the second optical waveguide 3B and outputted from the output optical waveguide 2.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: August 25, 2009
    Assignee: Panasonic Electric Works Co., Ltd.
    Inventors: Yuichi Uchida, Nobuyuki Miyagawa, Tadahiro Yamaji, Takuya Matsumoto
  • Publication number: 20090103883
    Abstract: In an optical attenuator, there are a first optical waveguide 3A connected to an input optical waveguide 1, a second optical waveguide 3B connected to an output optical waveguide 2 and a connecting optical waveguide 4, which are connected with each other in series. A first recess 13A and a second recess 13B are formed in a positional relationship of opposite directions with respect to an axial direction of an optic axis of light that is inputted through the input optical waveguide 1, transmitted through the first optical waveguide 3A, the connecting optical waveguide 4 and the second optical waveguide 3B and outputted from the output optical waveguide 2.
    Type: Application
    Filed: March 22, 2007
    Publication date: April 23, 2009
    Applicant: MATSUSHITA ELECTRIC WORKS, LTD.
    Inventors: Yuichi Uchida, Nobuyuki Miyagawa, Tadahiro Yamaji, Takuya Matsumoto