Patents by Inventor Hitoshi Kawai

Hitoshi 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: 20240114260
    Abstract: An imaging element includes a reading circuit that reads out pixel data obtained by imaging a subject at a first frame rate, a memory that stores the read pixel data, and an output circuit that outputs image data based on the stored pixel data at a second frame rate. The first frame rate is a frame rate higher than the second frame rate. The pixel data includes phase difference pixel data and non-phase difference pixel data different from the phase difference pixel data. The reading circuit reads out the pixel data of each of a plurality of frames in parallel within an output period defined by the second frame rate as a period in which the image data of one frame is output, and performs reading of the non-phase difference pixel data and a plurality of reading of the phase difference pixel data within the output period.
    Type: Application
    Filed: December 14, 2023
    Publication date: April 4, 2024
    Inventors: Hitoshi SAKURABU, Makoto KOBAYASHI, Ryo HASEGAWA, Tomoyuki KAWAI
  • Publication number: 20240080410
    Abstract: An imaging apparatus includes a storage portion that stores captured image data obtained by imaging a subject by an imaging element and is incorporated in the imaging element, an output portion that is incorporated in the imaging element, and a plurality of signal processing portions that are disposed outside the imaging element, in which the output portion includes a plurality of output lines each disposed in correspondence with each of the plurality of signal processing portions and outputs each of a plurality of pieces of image data into which the captured image data stored in the storage portion is divided, to a corresponding signal processing portion among the plurality of signal processing portions from the plurality of output lines, and any of the plurality of signal processing portions combines the plurality of pieces of image data.
    Type: Application
    Filed: November 13, 2023
    Publication date: March 7, 2024
    Inventors: Makoto KOBAYASHI, Tomoyuki KAWAI, Ryo HASEGAWA, Hitoshi SAKURABU
  • Patent number: 9926967
    Abstract: A coupling structure, including: a pair of slots extending in a circumferential direction of a sleeve portion of a first member; a circumferential groove formed in an outer circumference of a shaft portion of a second member; and a coupling member configured such that a part thereof is fitted into the circumferential groove through the slots for coupling the sleeve portion and the shaft portion so as to be rotatable relative to each other, wherein the coupling member is rotated while being elastically deformed, so as to disengage the coupling member from the circumferential groove for uncoupling the first member and the second member from each other, and wherein an extending portion of the coupling member has a length so designed as to prohibit its distal end from getting into the circumferential groove even when the coupling member excessively rotates and the extending portion accordingly engages one of the slots.
    Type: Grant
    Filed: April 26, 2016
    Date of Patent: March 27, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hitoshi Kawai, Shori Kato
  • Publication number: 20160369829
    Abstract: A coupling structure, including: a pair of slots extending in a circumferential direction of a sleeve portion of a first member; a circumferential groove formed in an outer circumference of a shaft portion of a second member; and a coupling member configured such that a part thereof is fitted into the circumferential groove through the slots for coupling the sleeve portion and the shaft portion so as to be rotatable relative to each other, wherein the coupling member is rotated while being elastically deformed, so as to disengage the coupling member from the circumferential groove for uncoupling the first member and the second member from each other, and wherein an extending portion of the coupling member has a length so designed as to prohibit its distal end from getting into the circumferential groove even when the coupling member excessively rotates and the extending portion accordingly engages one of the slots.
    Type: Application
    Filed: April 26, 2016
    Publication date: December 22, 2016
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hitoshi KAWAI, Shori KATO
  • Patent number: 8796582
    Abstract: A laser welding apparatus includes a laser welding unit including a first lens adapted to focus a laser beam; a second lens adapted to diffuse the laser beam to the first lens; and a third lens adapted to guide the laser beam to the second lens. The relative positions of the first lens, the second lens, and the third lens, are adjusted to adjust a diffusion angle and a beam width of the laser beam entering the first lens. The laser welding apparatus performs: actuating the laser welding unit to travel at a predetermined speed along a predetermined trajectory; directing the laser beam at a first welding spot; adjusting the focal length to focus the laser beam at the first welding spot; holding the laser focal spot size substantially constant; and directing the laser beam at a second welding spot after completion of welding for the first welding spot.
    Type: Grant
    Filed: February 7, 2006
    Date of Patent: August 5, 2014
    Assignees: Nissan Motor Co., Ltd., Showa Optronics Co., Ltd.
    Inventors: Hitoshi Kawai, Yuji Hamaguchi, Tatsuya Sakurai
  • Patent number: 8465010
    Abstract: A vibration damping rubber bushing including: an inner cylindrical member; a main rubber elastic body bonded to an outer circumferential face of the inner cylindrical member; a plurality of anti-slip projections provided on at least one of axial end faces of the inner cylindrical member that project axially outward from the axial end face and extend with ribbed shape in a diametrical direction on the axial end face to produce a spokewise pattern overall; and an annular water barrier projection provided on a diametrical medial section of the at least one of the axial end faces of the inner cylindrical member, projecting axially outwardly and extending circumferentially, with the anti-slip projections being disposed to both radially inner side and radially outer side of the annular water barrier projection.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: June 18, 2013
    Assignees: Tokai Rubber Industries, Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Norimasa Kuki, Yoshikane Akiyama, Mitiharu Hikosaka, Kazuhiko Kato, Hitoshi Kawai, Mie Miyauchi
  • Patent number: 8168918
    Abstract: A laser processing head mounted on a robot arm moves from with a constant speed in a direction from a welding point to a next welding point, while a reflection mirror continuously turns in order to maintain laser beams focused on the welding point until the welding at the welding point is completed, and the reflection mirror quickly turns to shift the focus of the laser beams onto the next welding point when the welding at the welding point is completed.
    Type: Grant
    Filed: December 14, 2005
    Date of Patent: May 1, 2012
    Assignee: Nissan Motor Co., Ltd.
    Inventor: Hitoshi Kawai
  • Patent number: 7953129
    Abstract: A laser light source device 1, comprising M number of laser light sources, of which frequency is shifted from a fundamental frequency by (m?1)·a·??, a first laser light source section 2 and a first fiber amplifier section 4 for amplifying these laser lights, a first optical multiplexer 6 for approximately coaxially superimposing the laser lights emitted from the first fiber amplifier section 4 and emitting the laser lights, a first wavelength conversion device 9 for multiplying the frequency of the laser lights emitted from the first optical multiplexer 6 by A, M number of laser light sources, of which frequency is shifted from the fundamental frequency by (m?1)·b·??, a second laser light source section 3 and a second fiber amplifier section 5 for amplifying these laser lights, a second optical multiplexer 7 for approximately coaxially superimposing the laser lights emitted from the second fiber amplifier section 5 and emitting the laser lights, a second wavelength conversion device 10 for multiplying the fre
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: May 31, 2011
    Assignee: Nikon Corporation
    Inventor: Hitoshi Kawai
  • Publication number: 20100327499
    Abstract: A vibration damping rubber bushing including: an inner cylindrical member; a main rubber elastic body bonded to an outer circumferential face of the inner cylindrical member; a plurality of anti-slip projections provided on at least one of axial end faces of the inner cylindrical member that project axially outward from the axial end face and extend with ribbed shape in a diametrical direction on the axial end face to produce a spokewise pattern overall; and an annular water barrier projection provided on a diametrical medial section of the at least one of the axial end faces of the inner cylindrical member, projecting axially outwardly and extending circumferentially, with the anti-slip projections being disposed to both radially inner side and radially outer side of the annular water barrier projection.
    Type: Application
    Filed: June 23, 2010
    Publication date: December 30, 2010
    Applicants: TOKAI RUBBER INDUSTRIES, LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Norimasa Kuki, Yoshikane Akiyama, Mitiharu Hikosaka, Kazuhiko Kato, Hitoshi Kawai, Mie Miyauchi
  • Patent number: 7815939
    Abstract: Regarding an object of sufficient suppression of unpleasant taste in the oral cavity and quick dissolution in the gastrointestinal tract, which is generated when a drug having a strong unpleasant taste such as bitterness, astringency and the like is applied to a quickly disintegrating preparations in the oral cavity, this invention has achieved the aforementioned object for the first time by employing a constitution of coating a coat of a water-soluble polymer and a specified ratio of a pH-independent water-insoluble polymer and hydroxypropylcellulose.
    Type: Grant
    Filed: July 19, 2006
    Date of Patent: October 19, 2010
    Assignee: Astellas Pharma Inc.
    Inventors: Yuki Kasashima, Ippei Kurimoto, Hitoshi Kawai
  • Publication number: 20100073658
    Abstract: A laser light source device 1, comprising M number of laser light sources, of which frequency is shifted from a fundamental frequency by (m?1)·a·??, a first laser light source section 2 and a first fiber amplifier section 4 for amplifying these laser lights, a first optical multiplexer 6 for approximately coaxially superimposing the laser lights emitted from the first fiber amplifier section 4 and emitting the laser lights, a first wavelength conversion device 9 for multiplying the frequency of the laser lights emitted from the first optical multiplexer 6 by A, M number of laser light sources, of which frequency is shifted from the fundamental frequency by (m?1)·b·??, a second laser light source section 3 and a second fiber amplifier section 5 for amplifying these laser lights, a second optical multiplexer 7 for approximately coaxially superimposing the laser lights emitted from the second fiber amplifier section 5 and emitting the laser lights, a second wavelength conversion device 10 for multiplying the fre
    Type: Application
    Filed: December 3, 2009
    Publication date: March 25, 2010
    Inventor: Hitoshi KAWAI
  • Patent number: 7653096
    Abstract: A laser light source device 1, comprising M number of laser light sources, of which frequency is shifted from a fundamental frequency by (m?1)·a·??, a first laser light source section 2 and a first fiber amplifier section 4 for amplifying these laser lights, a first optical multiplexer 6 for approximately coaxially superimposing the laser lights emitted from the first fiber amplifier section 4 and emitting the laser lights, a first wavelength conversion device 9 for multiplying the frequency of the laser lights emitted from the first optical multiplexer 6 by A, M number of laser light sources, of which frequency is shifted from the fundamental frequency by (m?1)·b·??, a second laser light source section 3 and a second fiber amplifier section 5 for amplifying these laser lights, a second optical multiplexer 7 for approximately coaxially superimposing the laser lights emitted from the second fiber amplifier section 5 and emitting the laser lights, a second wavelength conversion device 10 for multiplying the fre
    Type: Grant
    Filed: September 1, 2006
    Date of Patent: January 26, 2010
    Assignee: Nikon Corporation
    Inventor: Hitoshi Kawai
  • Patent number: 7623557
    Abstract: A fifth harmonic wave is formed from a fundamental wave of p-polarized light via a second harmonic wave forming optical element 3, a third harmonic wave forming optical element 4, and a fifth harmonic wave forming optical element 6 and a second harmonic wave of p-polarized light is formed from a fundamental wave of s-polarized light by a second harmonic wave forming optical element 9. The fifth harmonic wave of p-polarized light that is subjected to beam shaping by cylindrical lenses 7 and 8, the fundamental wave of s-polarized light, and the second harmonic wave of p-polarized light are combined by a dichroic mirror 10, and are incident on a seventh harmonic wave forming optical element 11.
    Type: Grant
    Filed: November 20, 2006
    Date of Patent: November 24, 2009
    Assignee: Nikon Corporation
    Inventors: Akira Tokuhisa, Hitoshi Kawai, Yoshinori Oshita
  • Patent number: 7397598
    Abstract: In nonlinear optical crystal 183D, each step of wavelength conversion can be performed using another fundamental wave that is output from light output unit 1612, without using the fundamental wave whose output level has been attenuated after going through wavelength conversion for several steps (wavelength conversion in nonlinear optical crystals 183A to 183C). Therefore, the wavelength conversion efficiency improves and the peak power of optical amplifiers 1611 and 1612 can be suppressed, which allows the wavelength of lights that are output from optical amplifiers 1611 and 1612 to be further narrowed.
    Type: Grant
    Filed: August 20, 2004
    Date of Patent: July 8, 2008
    Assignee: Nikon Corporation
    Inventors: Akira Tokuhisa, Hiroshi Kitano, Hitoshi Kawai
  • Publication number: 20070231399
    Abstract: Regarding an object of sufficient suppression of unpleasant taste in the oral cavity and quick dissolution in the gastrointestinal tract, which is generated when a drug having a strong unpleasant taste such as bitterness, astringency and the like is applied to a quickly disintegrating preparations in the oral cavity, this invention has achieved the aforementioned object for the first time by employing a constitution of coating a coat of a water-soluble polymer and a specified ratio of a pH-independent water-insoluble polymer and hydroxypropylcellulose.
    Type: Application
    Filed: July 19, 2006
    Publication date: October 4, 2007
    Applicant: Astellas Pharma, Inc.
    Inventors: Yuki Kasashima, Ippei Kurimoto, Hitoshi Kawai
  • Publication number: 20070193984
    Abstract: A laser welding apparatus includes a laser welding unit including a first lens adapted to focus a laser beam; a second lens adapted to diffuse the laser beam to the first lens; and a third lens adapted to guide the laser beam to the second lens. The relative positions of the first lens, the second lens, and the third lens, are adjusted to adjust a diffusion angle and a beam width of the laser beam entering the first lens. The laser welding apparatus performs: actuating the laser welding unit to travel at a predetermined speed along a predetermined trajectory; directing the laser beam at a first welding spot; adjusting the focal length to focus the laser beam at the first welding spot; holding the laser focal spot size substantially constant; and directing the laser beam at a second welding spot after completion of welding for the first welding spot.
    Type: Application
    Filed: February 7, 2006
    Publication date: August 23, 2007
    Inventors: Hitoshi Kawai, Yuji Hamaguchi, Tatsuya Sakurai
  • Publication number: 20070177639
    Abstract: A fifth harmonic wave is formed from a fundamental wave of p-polarized light via a second harmonic wave forming optical element 3, a third harmonic wave forming optical element 4, and a fifth harmonic wave forming optical element 6 and a second harmonic wave of p-polarized light is formed from a fundamental wave of s-polarized light by a second harmonic wave forming optical element 9. The fifth harmonic wave of p-polarized light that is subjected to beam shaping by cylindrical lenses 7 and 8, the fundamental wave of s-polarized light, and the second harmonic wave of p-polarized light are combined by a dichroic mirror 10, and are incident on a seventh harmonic wave forming optical element 11.
    Type: Application
    Filed: November 20, 2006
    Publication date: August 2, 2007
    Applicant: Nikon Corporation
    Inventors: Akira Tokuhisa, Hitoshi Kawai, Yoshinori Oshita
  • Publication number: 20060291862
    Abstract: A laser light source device 1, comprising M number of laser light sources, of which frequency is shifted from a fundamental frequency by (m?1)·a·??, a first laser light source section 2 and a first fiber amplifier section 4 for amplifying these laser lights, a first optical multiplexer 6 for approximately coaxially superimposing the laser lights emitted from the first fiber amplifier section 4 and emitting the laser lights, a first wavelength conversion device 9 for multiplying the frequency of the laser lights emitted from the first optical multiplexer 6 by A, M number of laser light sources, of which frequency is shifted from the fundamental frequency by (m?1)·b·??, a second laser light source section 3 and a second fiber amplifier section 5 for amplifying these laser lights, a second optical multiplexer 7 for approximately coaxially superimposing the laser lights emitted from the second fiber amplifier section 5 and emitting the laser lights, a second wavelength conversion device 10 for multiplying the fre
    Type: Application
    Filed: September 1, 2006
    Publication date: December 28, 2006
    Inventor: Hitoshi Kawai
  • Publication number: 20060157455
    Abstract: A laser processing head mounted on a robot arm moves from with a constant speed in a direction from a welding point to a next welding point, while a reflection mirror continuously turns in order to maintain laser beams focused on the welding point until the welding at the welding point is completed, and the reflection mirror quickly turns to shift the focus of the laser beams onto the next welding point when the welding at the welding point is completed.
    Type: Application
    Filed: December 14, 2005
    Publication date: July 20, 2006
    Inventor: Hitoshi Kawai
  • Patent number: 7074428
    Abstract: The present invention pertains to a quick disintegrating tablet in buccal cavity, characterized in that drug-containing particles with a mean particle diameter of approximately 50 to approximately 250 ?m and an apparent specific gravity of approximately 0.5 to approximately 1.2 consisting of a bitter tasting drug and/or drug of inferior fluidity and a pharmaceutical preparation carrier and obtained by spray drying are added to a quick disintegrating tablet in buccal cavity comprising a drug and a saccharide. Moreover, the present invention pertains to a method for manufacturing drug-containing particles having a specific mean particle diameter and specific apparent gravity by dissolving and suspending a bitter tasting drug and/or drug of inferior fluidity and a pharmaceutical preparation carrier to a high concentration in terms of solid concentration in a solvent and spray drying this liquid and a method for manufacturing a quick disintegrating tablet in buccal cavity comprising the particles.
    Type: Grant
    Filed: September 18, 2003
    Date of Patent: July 11, 2006
    Assignee: Astellas Pharma Inc.
    Inventors: Atushi Kajiyama, Tetsuya Tamura, Takao Mizumoto, Hitoshi Kawai, Tatsuya Takahashi