Patents by Inventor Shigeru Kawai

Shigeru Kawai 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: 20240123834
    Abstract: A control device includes a switching control unit, an information acquisition unit, and a difference acquisition unit. The switching control unit performs switching control that increases braking torque of the braking device while decreasing braking torque of the rotating electrical machine, when a vehicle is decelerated. The information acquisition unit acquires information on a state of the vehicle. The difference acquisition unit acquires a braking torque difference indicating a difference between braking torque required for keeping a stopped state of the vehicle and braking torque of the braking device, when the vehicle is stopped. After the information acquisition unit detects the stopped state of the vehicle, the switching control unit corrects output torque of the rotating electrical machine based on the braking torque difference.
    Type: Application
    Filed: December 15, 2023
    Publication date: April 18, 2024
    Applicant: DENSO CORPORATION
    Inventors: Haibo LIU, Keisuke Kawai, Akira Sakamoto, Shigeru Kamio, Tatsuya Takagi
  • Patent number: 7550170
    Abstract: An oil-in-water emulsion composition contains the following ingredients (A), (B) and (C): (A) an oil or fat having a diglyceride content of at least 50 wt %, in which at least 80 wt % of fatty acids constituting diglycerides are unsaturated fatty acids; (B) a mixture of polyglycerol fatty acid esters having an esterification degree of at least 80%, in which from 50 to 95 wt % of fatty acids constituting the polyglycerol fatty acid esters are C14-22 unsaturated fatty acids; and (C) yolk.
    Type: Grant
    Filed: September 20, 2005
    Date of Patent: June 23, 2009
    Assignee: Kao Corporation
    Inventors: Daisuke Shiiba, Hidekazu Takahashi, Shigeru Kawai, Toshitaka Sakuda, Teruyuki Kimura
  • Publication number: 20070154618
    Abstract: The invention relates to an acidic oil-in-water emulsified composition with a high diglyceride content, which contains fats and oils containing 30 wt % or more diglycerides and enzyme-treated yolk treated with one or more enzymes selected from esterase, lipase and phospholipase, wherein an antioxidant is contained at 1000 to 10000 ppm relative to an oil phase containing the fats and oils and in a weight ratio of 0.4 to 4.5 relative to the net weight of yolk in the enzyme-treated yolk.
    Type: Application
    Filed: June 14, 2004
    Publication date: July 5, 2007
    Applicant: KAO CORPORATION
    Inventors: Yoshinobu Nakajima, Shigeru Kawai, Naoto Kudo
  • Patent number: 7041328
    Abstract: Described is an acid oil-in-water emulsified composition comprising an oil phase having a diglycerides content of 30 wt. % or greater and a yolk, wherein a ratio of lysophospholipids to the whole phospholipids is at least 15% in terms of a phosphorus amount. The composition has excellent storage stability, appearance, taste and physical properties even if it contains diglycerides in a high concentration without decreasing the amount of the yolk.
    Type: Grant
    Filed: June 12, 2003
    Date of Patent: May 9, 2006
    Assignee: Kao Corporation
    Inventors: Shigeru Kawai, Yoshihiro Konishi
  • Publication number: 20060062888
    Abstract: An oil-in-water emulsion composition contains the following ingredients (A), (B) and (C): (A) an oil or fat having a diglyceride content of at least 50 wt %, in which at least 80 wt % of fatty acids constituting diglycerides are unsaturated fatty acids; (B) a mixture of polyglycerol fatty acid esters having an esterification degree of at least 80%, in which from 50 to 95 wt % of fatty acids constituting the polyglycerol fatty acid esters are C14-22 unsaturated fatty acids; and (C) yolk.
    Type: Application
    Filed: September 20, 2005
    Publication date: March 23, 2006
    Applicant: Kao Corporation
    Inventors: Daisuke Shiiba, Hidekazu Takahashi, Shigeru Kawai, Toshitaka Sakuda, Teruyuki Kimura
  • Patent number: 6743459
    Abstract: The invention provides an acidic oil-in-water type emulsion composition which has an oil phase containing at least 20 % by weight of diacylglycerol and 0.5 to 5.0 % by weight of a crystallization inhibitor, and has excellent shelf stability at low temperatures though it contains diacylglycerol at a high concentration, also good in appearance and flavor and useful as a diet or food for improving lipid metabolism.
    Type: Grant
    Filed: December 14, 2001
    Date of Patent: June 1, 2004
    Assignee: Kao Corporation
    Inventors: Daisuke Shiiba, Yoshihide Asabu, Shigeru Kawai, Yoshinobu Nakajima
  • Publication number: 20030215545
    Abstract: Described is an acid oil-in-water emulsified composition comprising an oil phase having a diglycerides content of 30 wt. % or greater and a yolk, wherein a ratio of lysophospholipids to the whole phospholipids is at least 15% in terms of a phosphorus amount. The composition has excellent storage stability, appearance, taste and physical properties even if it contains diglycerides in a high concentration without decreasing the amount of the yolk.
    Type: Application
    Filed: June 12, 2003
    Publication date: November 20, 2003
    Applicant: KAO CORPORATION
    Inventors: Shigeru Kawai, Yoshihiro Konishi
  • Patent number: 6635777
    Abstract: Described is an acid oil-in-water emulsified composition comprising an oil phase having a diglycerides content of 30 wt. % or greater and a yolk, wherein a ratio of lysophospholipids to the whole phospholipids is at least 15% in terms of a phosphorus amount. The composition has excellent storage stability appearance, taste and physical properties even if it contains diglycerides in a high concentration without decreasing the amount of the yolk.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: October 21, 2003
    Assignee: Kao Corporation
    Inventors: Shigeru Kawai, Yoshihiro Konishi
  • Publication number: 20020119239
    Abstract: The invention provides an acidic oil-in-water type emulsion composition which has an oil phase containing at least 20 % by weight of diacylglycerol and 0.5 to 5.0 % by weight of a crystallization inhibitor, and has excellent shelf stability at low temperatures though it contains diacylglycerol at a high concentration, also good in appearance and flavor and useful as a diet or food for improving lipid metabolism.
    Type: Application
    Filed: December 14, 2001
    Publication date: August 29, 2002
    Applicant: Kao Corporation
    Inventors: Daisuke Shiiba, Yoshihide Asabu, Shigeru Kawai, Yoshinobu Nakajima
  • Publication number: 20020060845
    Abstract: A diffractive optical element, which splits one input light into a plurality of output lights, has a phase difference distribution P (x) represented by the following equation 1 P ⁡ ( x ) = mod ⁡ [ ∑ j = 2 k ⁢ a j ⁡ ( x ) · mod ⁡ [ P j ⁡ ( x ) - P 1 ⁡ ( x ) + c j , 2 ⁢ π ] + mod ⁡ [ P 1 ⁡ ( x ) + c 1 , 2 ⁢ π ] , 2 ⁢ m ⁢   ⁢ π ]
    Type: Application
    Filed: September 19, 2001
    Publication date: May 23, 2002
    Inventors: Yoshiyuki Suzuki, Tetsuya Saito, Takeshi Kobayashi, Hideyuki Tanaka, Shigeru Kawai
  • Patent number: 5532856
    Abstract: A mesh-connected tree (MCT) interconnect topology network which is a two-dimensional interconnect topology combining aspects of a conventional tree-network and a two-dimensional nearest-neighbor mesh network is implemented as a planar optical interconnect network.
    Type: Grant
    Filed: June 30, 1994
    Date of Patent: July 2, 1996
    Assignee: NEC Research Institute, Inc.
    Inventors: Yao Li, Richard A. Linke, Yuh-Dauh Lyuu, Kenichi Kasahara, Shigeru Kawai, Keiichi Kubota
  • Patent number: 5452384
    Abstract: An optical connector comprises a series of transparent substrates 50-53 including a refraction type lens 10 embedded in the central substrate 50, two beam deflection elements 40 and 41 offset from the optical axis of the lens 10, a light emitting element 20 directly below the beam deflection element 40, and a light detecting element 30 directly above the beam deflection element 41. The lens 10 is designed to have identical meridional and sagittal focal lengths so that meridional and sagittal images of obliique incident beams may be formed on the same spot on the light detecting element 30. Beam of light emitted from the light emitting element 20 are deflected by the beam deflection element 40 and enters the lens 10 obliquely. The beams, passing through the lens 10 and the deflection element 41 are cllimated within a small spot on the light detecting element 30 since the lens 10 has identical meridional and sagittal focal lengths.
    Type: Grant
    Filed: January 3, 1994
    Date of Patent: September 19, 1995
    Assignee: NEC Corporation
    Inventors: Hisakazu Kurita, Shigeru Kawai
  • Patent number: 5434434
    Abstract: A semiconductor optical device including multilayer semiconductor device regions formed on a surface of a semiconductor substrate which act as an optical device respectively, and diffraction gratings formed on a back of the substrate optically coupled with at least one of said regions through the substrate. The regions have a function such as light emitting, light receiving, light amplification or light switching. The regions and gratings can be respectively formed on the surface and the back, monolithicaly, and polishing of the substrate provides a suitable thickness so that the regions and the gratings may be optically coupled with each other. The regions and gratings may be arranged at the optimum positions in the direction parallel to the substrate. Extremely precise alignment of its components and many channels can be easily obtained with compact size.
    Type: Grant
    Filed: March 11, 1993
    Date of Patent: July 18, 1995
    Assignee: NEC Corporation
    Inventors: Kenichi Kasahara, Shigeru Kawai
  • Patent number: 5258623
    Abstract: A positioning apparatus for an optical element mounting operation includes a transparent substrate, a light source, an optical element substrate, a measuring unit, a manipulator, and a control unit. At least one positioning lens and an optical system are formed on a surface of the transparent substrate. The light source emits parallel beams which are vertically incident on the transparent substrate. A plurality of optical elements to be positioned with respect to the transparent substrate, and a positioning light-receiving element for receiving light focused by the positioning lens are formed on the optical element substrate. The current measuring unit measures a current flowing in the positioning light-receiving element. The manipulator moves the transparent substrate with respect to the optical element substrate to perform positioning of the former with respect to the latter.
    Type: Grant
    Filed: December 24, 1992
    Date of Patent: November 2, 1993
    Assignee: NEC Corporation
    Inventor: Shigeru Kawai
  • Patent number: 5235661
    Abstract: In an optical connection device for use in responding to an incident light beam to produce a plurality of output light beams, the incident light beam is incident onto a planar substrate on which a plurality of optical islands which have refraction coefficients different from the planar substrate. The incident light beam travels as an internal light beam within the planar substrate with reflections repeated in the planar substrate and is emitted as output light beams through the optical islands when the internal light beam arrives at the optical islands. Thus, the incident light beam is distributed through the optical islands outside of the planar substrate. If each of optical nodes is located in vicinity of the optical islands and generates the input light beam and receives each of the output light beams, bidirectional communication can be carried out through the planar substrate and the optical islands among the optical nodes.
    Type: Grant
    Filed: September 27, 1991
    Date of Patent: August 10, 1993
    Assignee: NEC Corporation
    Inventor: Shigeru Kawai
  • Patent number: 5095380
    Abstract: In a photoelectronic interconnection device, N.times.N light emitting elements are arranged on a light emitting plane in a matrix pattern and N.times.N light sensing elements are arranged on a light receiving plane in a matrix pattern corresponding to the light emitting elements. A lens array of p.times.p optical lenses is provided, the lenses being disposed on a common optical plane located so that it is spaced from the light receiving plane at a distance q times greater than its distance to the light emitting plane, where N=pq, the lenses being spaced apart from each other at pitch (pq+1)a/(q+1), and a is a pitch between successive light emitting elements.
    Type: Grant
    Filed: February 19, 1991
    Date of Patent: March 10, 1992
    Assignee: NEC Corporation
    Inventor: Shigeru Kawai
  • Patent number: 5093875
    Abstract: A matrix of optical functional devices are divided into plural device units. Each of the device units includes at least two optical functional devices having light transmitting coatings. The coatings have transmission factors which are different from each other. Light signals emitted through the coatings from the at least two optical functional devices in each unit are received by a corresponding light receiving device among light receiving devices arranged in a one-dimensional pattern. In each device unit optical functional devices to be driven are selected, so that a coupling degree between each device unit and the corresponding light receiving device is changed.
    Type: Grant
    Filed: September 7, 1990
    Date of Patent: March 3, 1992
    Assignee: NEC Corporation
    Inventors: Ichiro Ogura, Yoshiharu Tashiro, Kenichi Kasahara, Shigeru Kawai
  • Patent number: 5063531
    Abstract: Among light emitting and sensitive element pairs arranged along rows and columns of a matrix in each of first and second layers of an optical computer operable as a neural network with one-to-one correspondence kept between the pairs in the first layer and the pairs in the second layer, the light emitting elements and the light sensitive elements are connected along the rows in the first layer and along the columns in the second layer. Optical intensity controlling elements of a panel are placed in optical paths defined by the pairs in the first layer and the pairs which correspond in the second layer to the pairs of the first layer, respectively. When the light emitting element rows are driven, optical beams are emitted by the light emitting elements of the first layer and controlled by the respective controlling elements to have first-layer controlled amounts of light, respectively.
    Type: Grant
    Filed: August 28, 1989
    Date of Patent: November 5, 1991
    Assignee: NEC Corporation
    Inventors: Shigeru Kawai, Keiichi Kubota
  • Patent number: 5028969
    Abstract: A space modulation matrix is composed of semiconductor transmittivity modulation elements arranged in a matrix pattern. A transmittivity of the transmittivity modulation elements is changed by supplying a light or applying a voltage greater than a switching voltage of the transmittivity modulation elements to a selected number of the transmittivity modulation elements, so that a space modulation is provided on the space modulation matrix, and is renewed by any number of times.
    Type: Grant
    Filed: September 13, 1989
    Date of Patent: July 2, 1991
    Assignee: NEC Corporation
    Inventors: Kenichi Kasahara, Yoshiharu Tashiro, Mitsunori Sugimoto, Keiichi Kubota, Shigeru Kawai, Ichiro Ogura
  • Patent number: D302685
    Type: Grant
    Filed: February 20, 1986
    Date of Patent: August 8, 1989
    Assignee: Hitachi, Ltd.
    Inventors: Shigeru Kawai, Yoshihiro Kawakatsu, Yoshiaki Tsuchihashi, Hiroshi Endou, Katsufumi Ohuchi