Patents by Inventor Masahiko Nakazawa

Masahiko Nakazawa 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: 10969647
    Abstract: An electrophoretic particle includes a particle and a coating layer, in which the coating layer includes at least one of dispersibility and chargeability, and includes a polymer that connects to the particle, where the polymer includes a first functional group and is connected to the particle via a connected body, the connected body has a molecular weight of 500 or less and includes a second functional group and a third functional group, and the particle, the connected body and the polymer are connected via the chemical bond formed by reacting the first and second functional groups and the chemical bond formed by reacting the hydroxyl group and the third functional group.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: April 6, 2021
    Assignee: E Ink Corporation
    Inventors: Kozo Shitagami, Kei Kamakura, Masahiko Nakazawa, Hiroki Nakahara, Harunobu Komatsu
  • Patent number: 10968354
    Abstract: According to the invention, an electrophoretic dispersion liquid includes at least one type of an electrophoretic particle, and a dispersion medium, in which the content of transition metal of group 8 elements derived from a catalyst which is used to generate at least one of a block copolymer (a particle surface treatment agent) used to form the electrophoretic particle and the dispersion medium is in a range of greater than 0 ppm to equal to or less than 2 ppm in the electrophoretic dispersion liquid.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: April 6, 2021
    Assignee: E Ink Corporation
    Inventors: Harunobu Komatsu, Masahiko Nakazawa, Kiyoshi Nakamura, Hiroki Nakahara
  • Publication number: 20210047763
    Abstract: A bonding material for fiber binding includes a resin composition containing an amorphous thermoplastic resin and a crystalline thermoplastic resin, where the bonding material has a melting temperature lower than the melting temperature of the crystalline thermoplastic resin and a softening temperature higher than the softening temperature of the amorphous thermoplastic resin.
    Type: Application
    Filed: August 11, 2020
    Publication date: February 18, 2021
    Inventors: Masahiko NAKAZAWA, Yoshihiro UENO
  • Patent number: 10890763
    Abstract: Provided is an information display apparatus that significantly improves light resistance with respect to sunlight. The information display apparatus, which displays video-image information on a projection surface by a virtual image, includes in a housing partly having an opening: a video-image-light generator that generates video-image light for displaying the video-image information; a video-image-light processor that performs a predetermined optical processing to a video image generated by the video-image-light generator; and a projector that projects, onto the projection surface through the opening of the housing, the video-image light optically processed by the video-image-light processor so that a viewer is capable of virtually recognizing the video-image information as a virtual image in front of the projection surface, wherein a light path in the housing is provided with a suppressor selectively suppressing a P-polarizing component of light in a visible light region.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: January 12, 2021
    Assignee: MAXELL, LTD.
    Inventors: Koji Hirata, Masahiko Yatsu, Toshinori Sugiyama, Akio Misawa, Shigeki Hoshino, Kazuomi Kaneko, Tatsuya Nakazawa, Takumi Nakada, Yuki Nagano, Tomoki Yamamoto
  • Publication number: 20200393051
    Abstract: Provided is a valve device which can precisely adjust the flow rate while ensuring the flow rate of the fluid. A valve device includes a main actuator which receives a pressure of a supplied drive fluid and moves an operating member to an open position or closed position; an adjusting actuator arranged to receive at least a part of a force generated by the main actuator and for adjusting the position of the operating member positioned at the open position; and a pressure regulator provided in a feed path of the drive fluid to the main actuator and for regulating the pressure of the supplied drive fluid to suppress fluctuation of the pressure of the drive fluid supplied to the main actuator.
    Type: Application
    Filed: March 9, 2018
    Publication date: December 17, 2020
    Applicant: FUJIKIN INCORPORATED
    Inventors: Kenta KONDO, Toshihide YOSHIDA, Masahiko TAKIMOTO, Tsutomu SHINOHARA, Tomohiro NAKATA, Takeru MIURA, Masahiko NAKAZAWA
  • Patent number: 10861980
    Abstract: A semiconductor device including a transistor and a wiring electrically connected to the transistor each of which has excellent electrical characteristics because of specific structures thereover is provided. A first conductive film, a first insulating film over the first conductive film, a second conductive film over the first insulating film, a second insulating film over the second conductive film, a third conductive film electrically connected to the first conductive film through an opening provided in the first insulating film and the second insulating film, and a third insulating film over the third conductive film are provided. The third conductive film includes indium, tin, and oxygen, and the third insulating film includes silicon and nitrogen and the number of ammonia molecules released from the third insulating film is less than or equal to 1×1015 molecules/cm3 by thermal desorption spectroscopy.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: December 8, 2020
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Masahiro Katayama, Yasutaka Nakazawa, Masatoshi Yokoyama, Masahiko Hayakawa, Kenichi Okazaki, Shunsuke Koshioka
  • Publication number: 20200254468
    Abstract: Ultrafine bubbles with a diameter of less than 1.0 ?m are generated in liquid by causing film boiling in liquid by means of a heater.
    Type: Application
    Filed: August 29, 2018
    Publication date: August 13, 2020
    Inventors: Masahiko Kubota, Kenji Takahashi, Ikuo Nakazawa, Akitoshi Yamada, Nobuhisa Tanahashi, Yoshio Kinoshita
  • Publication number: 20200248833
    Abstract: An actuator includes: a casing; a reciprocating member provided in the casing to be reciprocatable; a drive part provided in the casing to drive the reciprocating member; a booster mechanism which is configured to amplify a drive force applied by the drive part to the reciprocating member; and a moving member which is configured to move on receiving the force amplified by the booster mechanism. The booster mechanism includes a plurality of levers which are arranged in a circumferential direction of the moving member. Each of the levers has an effort portion which is configured to receive the force from the reciprocating member, a fulcrum portion which is configured to come into contact with the casing to serve as a center of a revolution of the lever, and a load portion which is configured to transmit the force to the moving member.
    Type: Application
    Filed: March 27, 2020
    Publication date: August 6, 2020
    Inventors: Masahiko NAKAZAWA, Nobuo NAKAMURA, Tomohiro NAKATA, Tsutomu SHINOHARA
  • Publication number: 20200238705
    Abstract: A liquid absorber includes a liquid absorption member, a case, and a cover. The liquid absorption member absorbs liquid. The liquid absorption member includes a fiber and a liquid-absorbent resin. The liquid absorption member is stored in the case. The cover covers the liquid absorption member. The cover includes through-holes through which the liquid is to pass. The cover includes a recessed portion recessed toward the liquid absorption member. The recessed portion is disposed at a location to which the liquid is to be discharged. The through-holes are disposed at least in the recessed portion.
    Type: Application
    Filed: January 27, 2020
    Publication date: July 30, 2020
    Inventors: Naotaka HIGUCHI, Masahiko NAKAZAWA, Shogo NAKADA, Yoichi MIYASAKA, Kaneo YODA, Nobutaka URANO
  • Publication number: 20200238706
    Abstract: A liquid absorber includes a liquid absorption member and a case. The liquid absorption member absorbs liquid. The liquid absorption member includes materials that include a fiber and a liquid-absorbent resin. The liquid absorption member is stored in the case. The case has an opening portion. The materials of the liquid absorption member are bonded together in at least a portion of a surface of the liquid absorption member. The surface is a surface adjacent to the opening portion.
    Type: Application
    Filed: January 27, 2020
    Publication date: July 30, 2020
    Inventors: Masahiko NAKAZAWA, Shogo NAKADA, Yoichi MIYASAKA
  • Publication number: 20200232891
    Abstract: The invention provides a method of preparing a biological tissue sample and a method of observing a biological tissue section sample that enable stereoscopic observation of a biological tissue easily and rapidly without destroying a biological tissue piece. The method of observing a biological tissue sample according to the invention is a method in which stereoscopic morphology of a biological tissue sample is observed, and the method includes: cutting out a sample having a thickness of 15 to 50 ?m from a sample block obtained by fixing, dehydrating, and paraffin-embedding a sample cut out from a biological tissue; transferring the sample to a surface-treated slide glass; stretching the sample on the slide glass; performing deparaffinization processing; then, staining the sample with a heavy metal-based staining agent; and observing the stained sample with a scanning electron microscope.
    Type: Application
    Filed: October 25, 2017
    Publication date: July 23, 2020
    Inventors: Akira SAWAGUCHI, Takahito HASHIMOTO, Eiko NAKAZAWA, Masahiko AJIMA, Takeshi KAMIMURA
  • Publication number: 20200197963
    Abstract: A UFB-containing liquid manufacturing apparatus includes a liquid ejecting unit having a thermal energy generating element, a flow path for leading liquid to the thermal energy generating element, a driving unit configured to drive the thermal energy generating element, and an ejection opening. The UFB-containing liquid manufacturing apparatus also includes a collecting unit configured to collect liquid ejected from the ejection opening. At this time, the driving unit drives the thermal energy generating element to cause film boiling in liquid led to the flow path and causes liquid containing ultrafine bubbles generated by the film boiling to be ejected from the ejection opening.
    Type: Application
    Filed: August 22, 2018
    Publication date: June 25, 2020
    Inventors: Kenji Takahashi, Masahiko Kubota, Ikuo Nakazawa, Akitoshi Yamada, Nobuhisa Tanahashi
  • Patent number: 10597541
    Abstract: An electrophoretic particle includes a base particle (particle), a first compound, a second compound, and a third compound bonded to the base particle. The first compound is a polymer having a dispersion portion derived from a first monomer, and a bonding portion derived from a second monomer, and is connected to the base particle at the bonding portion. The second compound includes a non-polar group and a second functional group and is connected to the base particle at the second functional group. The third compound includes a charging group and a second functional group and is connected to the base particle at the second functional group.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: March 24, 2020
    Assignee: E Ink Corporation
    Inventors: Keiichi Inoue, Kiyoshi Nakamura, Shinobu Yokokawa, Tomoyuki Ushiyama, Masahiko Nakazawa
  • Publication number: 20190388933
    Abstract: To provide: a transparent conductive substrate containing silver nanowires and having excellent optical characteristics, electrical characteristics and light resistance; and a method for producing the same. A transparent conductive substrate characterized by comprising: a substrate; a transparent conductive film formed on at least one principal surface of the substrate, and containing a binder resin and conductive fibers; and a protective film formed on the transparent conductive film, wherein the thermal decomposition starting temperature of the binder resin is 210° C. or higher, and the protective film is a thermal-cured film obtained using a thermosetting resin.
    Type: Application
    Filed: November 29, 2017
    Publication date: December 26, 2019
    Applicant: SHOW A DENKO K.K.
    Inventors: Masahiko TOBA, Eri NAKAZAWA, Shigeru YAMAKI
  • Publication number: 20190346676
    Abstract: Provided is an information display apparatus that significantly improves light resistance with respect to sunlight. The information display apparatus, which displays video-image information on a projection surface by a virtual image, includes in a housing partly having an opening: a video-image-light generator that generates video-image light for displaying the video-image information; a video-image-light processor that performs a predetermined optical processing to a video image generated by the video-image-light generator; and a projector that projects, onto the projection surface through the opening of the housing, the video-image light optically processed by the video-image-light processor so that a viewer is capable of virtually recognizing the video-image information as a virtual image in front of the projection surface, wherein a light path in the housing is provided with a suppressor selectively suppressing a P-polarizing component of light in a visible light region.
    Type: Application
    Filed: November 13, 2017
    Publication date: November 14, 2019
    Inventors: Koji HIRATA, Masahiko YATSU, Toshinori SUGIYAMA, Akio MISAWA, Shigeki HOSHINO, Kazuomi KANEKO, Tatsuya NAKAZAWA, Takumi NAKADA, Yuki NAGANO, Tomoki YAMAMOTO
  • Publication number: 20190344597
    Abstract: A relief printing original plate for rotary letterpress printing wherein at least an adhesive layer, a photosensitive resin layer and a cover film are successively layered on a support, wherein the photosensitive resin layer contains at least a synthetic rubber-based polymer, a photopolymerizable unsaturated compound and a photopolymerization initiator, and Shore A hardness of a surface of the photosensitive resin layer after photo-curing is 80 to 95. Preferably, the synthetic rubber-based polymer is a hydrophobic polymer obtained from a water-dispersible latex having a weight-average gelation degree of 50 to 80%. Preferably, the photosensitive resin layer contains 20 to 70% by mass of the synthetic rubber-based polymer. The relief printing original plate is suitably used for a rotary printing machine of a center drum type.
    Type: Application
    Filed: July 29, 2019
    Publication date: November 14, 2019
    Applicant: TOYOBO CO., LTD.
    Inventors: Eri Nakazawa, Masahiko Nakamori
  • Publication number: 20190330493
    Abstract: A composition for a protective film for electroconductive patterns, including: (A) a polyurethane containing a carboxyl group; (B) an epoxy compound; (C) a curing accelerator; and (D) a solvent, wherein the percentage of the solvent (D) contained is from 95.0% to 99.9% by mass, and the solvent (D) contains (D1) a solvent containing a hydroxyl group and having a boiling point in excess of 100° C., and (D2) a solvent having a boiling point that does not exceed 100° C., wherein the content of the solvent (D2) having a boiling point that does not exceed 100° C. is 30% to less than 70% by mass of total solvent in total. The composition can be cured by heating at a temperature not exceeding 100° C. for a heating time not exceeding 10 minutes.
    Type: Application
    Filed: November 29, 2017
    Publication date: October 31, 2019
    Applicant: SHOWA DENKO K.K.
    Inventors: Masahiko TOBA, Eri NAKAZAWA, Shigeru YAMAKI
  • Publication number: 20190256662
    Abstract: A method of manufacturing an electrophoretic particle is a method of manufacturing an electrophoretic particle including a particle and a particle surface treatment agent which is bonded to the particle, the method including preparing a mixture containing a plurality of the particles, the particle surface treatment agent, an unreacted product of a raw material used at the time of generating the particle surface treatment agent, and a reaction by-product generated at the time of generating the particle surface treatment agent, the mixture having a content of the particle surface treatment agent which is set to be equal to or greater than 70% by weight in the mixture except for the plurality of particles; and bonding the particle surface treatment agent to a surface of the particle in the mixture.
    Type: Application
    Filed: May 2, 2019
    Publication date: August 22, 2019
    Inventors: Harunobu KOMATSU, Hiroki NAKAHARA, Masahiko NAKAZAWA, Takashi HIRAIWA, Kozo SHITAGAMI
  • Patent number: 10323128
    Abstract: A method of manufacturing an electrophoretic particle is a method of manufacturing an electrophoretic particle including a particle and a particle surface treatment agent which is bonded to the particle, the method including preparing a mixture containing a plurality of the particles, the particle surface treatment agent, an unreacted product of a raw material used at the time of generating the particle surface treatment agent, and a reaction by-product generated at the time of generating the particle surface treatment agent, the mixture having a content of the particle surface treatment agent which is set to be equal to or greater than 70% by weight in the mixture except for the plurality of particles; and bonding the particle surface treatment agent to a surface of the particle in the mixture.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: June 18, 2019
    Assignee: E Ink Corporation
    Inventors: Harunobu Komatsu, Hiroki Nakahara, Masahiko Nakazawa, Takashi Hiraiwa, Kozo Shitagami
  • Publication number: 20190062573
    Abstract: According to the invention, an electrophoretic dispersion liquid includes at least one type of an electrophoretic particle, and a dispersion medium, in which the content of transition metal of group 8 elements derived from a catalyst which is used to generate at least one of a block copolymer (a particle surface treatment agent) used to form the electrophoretic particle and the dispersion medium is in a range of greater than 0 ppm to equal to or less than 2 ppm in the electrophoretic dispersion liquid.
    Type: Application
    Filed: October 29, 2018
    Publication date: February 28, 2019
    Inventors: Harunobu KOMATSU, Masahiko NAKAZAWA, Kiyoshi NAKAMURA, Hiroki NAKAHARA