Patents by Inventor Tsutomu Murakami

Tsutomu Murakami 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: 20190386060
    Abstract: A light emitting element array includes a single semiconductor substrate, a plurality of semiconductor elements, which are formed on the single semiconductor substrate, and each of the semiconductor elements including a first distributed Bragg-reflector, an active layer formed over the first distributed Bragg-reflector, and a second distributed Bragg-reflector formed over the active layer. The array includes an electrode pad formed over the second distributed Bragg-reflector and a wiring formed at least partly over the second distributed Bragg-reflector and extending from the electrode pad toward the semiconductor elements. The semiconductor elements include a first semiconductor element, configured to emit laser light, and a second semiconductor element configured not to emit laser light and disposed at a position which is shorter distance along the wiring from the electrode pad than a distance along the wiring from the electrode pad to a position of the first semiconductor element.
    Type: Application
    Filed: August 27, 2019
    Publication date: December 19, 2019
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Junichiro HAYAKAWA, Akemi MURAKAMI, Hideo NAKAYAMA, Tsutomu OTSUKA
  • Publication number: 20190368457
    Abstract: An electromagnetically-driven injector may include a valve body of an on-off valve biased in a valve-closed direction by a coil spring, which is arranged in a stroking direction of the valve body, and at least one plate spring, which is provided at a right angle in the stroking direction of the valve body and arranged in such a manner as to support the valve body, and keeps a valve-closed state when energization is not provided. The at least one plate spring may include a plurality of plate springs arranged in the stroking direction of the valve body.
    Type: Application
    Filed: May 28, 2019
    Publication date: December 5, 2019
    Inventors: Takayuki Endo, Tsutomu Murakami
  • Patent number: 10484087
    Abstract: An optical transmission device includes a first light emitting element, a second light emitting element, and a detection unit. The first light emitting element is configured to emit light. The second light emitting element is configured to emit light. The second light emitting element is connected in parallel with the first light emitting element and is configured to deteriorate earlier than the first light emitting element. The detection unit is configured to detect whether the second light emitting element is deteriorated.
    Type: Grant
    Filed: October 6, 2017
    Date of Patent: November 19, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Akemi Murakami, Junichiro Hayakawa, Hideo Nakayama, Tsutomu Otsuka
  • Patent number: 10438993
    Abstract: A light emitting element array includes plural light emitting elements connected in parallel to each other by a wiring connected to a terminal that supplies a current. Each of the light emitting elements is disposed at a position of a predetermined path length along a path of the current flowing from the terminal through the wiring. The plural light emitting elements include, in a mixed form, one or more first light emitting elements each having a non-shielded light emission aperture and one or more second light emitting elements each having a shielded light emission aperture. At least one of the first light emitting elements is disposed at a position of the longest path length. At least one of the second light emitting elements is disposed at a position of the shortest path length.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: October 8, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Junichiro Hayakawa, Akemi Murakami, Hideo Nakayama, Tsutomu Otsuka
  • Patent number: 10429755
    Abstract: A white toner for electrostatic image development includes white toner particles containing a binder resin and a white pigment. When in a circularity distribution of the white pigment determined by sectional observation of the white toner particles, the cumulative 10% circularity from the smaller side is C10, and the cumulative 50% circularity is C50, the following formula (1) and formula (2) are satisfied. 0.900?C50?1.000??Formula (1): 1.00?C50/C10?1.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: October 1, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Tsuyoshi Murakami, Tsutomu Furuta
  • Patent number: 10423087
    Abstract: An electrostatic charge image developing toner includes: a toner particle and a strontium titanate particle that is externally added to the toner particle, in which an average primary particle diameter of the strontium titanate particle that is present on a surface of the toner particle is 30 nm or more and 100 nm or less, and average primary particle circularity is 0.82 or more and 0.94 or less, and in which circularity that becomes 84% of accumulation of the primary particle is greater than 0.92.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: September 24, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Moegi Iguchi, Sakon Takahashi, Soutaro Kakehi, Yuka Yamagishi, Yutaka Saito, Mona Tasaki, Tsutomu Furuta, Tsuyoshi Murakami, Satoshi Kamiwaki
  • Publication number: 20190211756
    Abstract: Provided is a fuel pressure monitoring system of a vaporizer using a safety module which issues a fault signal by detecting a pressure using a fuel pressure sensor disposed in a pressure regulating chamber of the vaporizer within a predetermined time after an engine is stopped and determining that the pressure regulating mechanism fails when the detected pressure exceeds a threshold stored in a storage device to be increased to a predetermined pressure or higher, and the pressure regulating mechanism is determined to fail only when a water temperature of cooling water in the engine of the vaporizer reaches a predetermined temperature at which warming up of the engine can be determined to be completed.
    Type: Application
    Filed: January 11, 2019
    Publication date: July 11, 2019
    Inventors: Takayuki Endo, Tsutomu Murakami, Tomoaki Fukuoka
  • Publication number: 20190196348
    Abstract: A white toner for electrostatic image development includes white toner particles containing a binder resin and a white pigment. When in a circularity distribution of the white pigment determined by sectional observation of the white toner particles, the cumulative 10% circularity from the smaller side is C10, and the cumulative 50% circularity is C50, the following formula (1) and formula (2) are satisfied. 0.900?C50?1.000 ??Formula (1) 1.00?C50/C10?1.
    Type: Application
    Filed: May 22, 2018
    Publication date: June 27, 2019
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Tsuyoshi MURAKAMI, Tsutomu FURUTA
  • Patent number: 10273829
    Abstract: A cylindrical case includes a case main body made of a composite material of reinforcing fibers impregnated with a thermosetting resin, and an outward flange on the case main body. The outward flange includes: a bonding layer; a foundation layer disposed on the bonding layer; one flange constituting layer having a leg layer which is laminated from one slope surface of the foundation layer to the bonding layer and a wall layer which rises from the one slope surface; and the other flange constituting layer having a leg layer which is laminated from the other slope surface of the foundation layer to the bonding layer and a wall layer which rises from the other slope surface. The foundation layer is formed by laminating roving layers, while the flange constituting layers are formed by laminating a plurality of biaxial fabric layers including a biaxial fabric of a non-crimp structure.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: April 30, 2019
    Assignees: IHI Corporation, IHI Aerospace Co., Ltd.
    Inventors: Tsutomu Murakami, Ikuo Okumura, Yuu Shigenari, Takashi Harada, Yusuke Dan
  • Patent number: 10265908
    Abstract: A blank sheet including a plurality of main fibers arranged in parallel with each other, auxiliary fibers and a resin that consolidates the fibers is heated to a temperature at which the resin softens, and then pressed against a fan blade mold with the direction of the main fibers aligned with the longitudinal direction of the fan blade mold. The fan blade mold is shaped so that the length thereof in the longitudinal direction along the surface of a center part thereof in the width direction is shorter than the length thereof in the longitudinal direction along the surface of end parts thereof in the width direction. When the blank sheet is pressed against the fan blade mold, a center part in the width direction of the blank sheet at an end part in the longitudinal direction is pulled with a greater force than end parts in the width direction of the blank sheet at the end part in the longitudinal direction, thereby preventing occurrence of wrinkling.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: April 23, 2019
    Assignees: IHI Corporation, IHI AEROSPACE CO., LTD.
    Inventors: Takaomi Inada, Hideo Morita, Hiroyuki Yagi, Tsutomu Murakami, Shinichi Tanaka
  • Publication number: 20180304562
    Abstract: A fiber reinforced composite member molding apparatus including a lower mold with a cavity, an upper mold with a core for clamping layered prepreg to the cavity, cartridge heaters for heating the layered prepreg via the lower mold and the upper mold, and cooling medium passages for cooling the layered prereg via the lower mold and the upper mold, the lower mold and the upper mold being brought nearer to each other according to shrinkage of thermoplastic resin contained in the layered prereg during cooling, further includes pins moved into and out of the cavity, cylinders for moving the pins into and out of the cavity, and a controller for causing the pins to project into the cavity to come into contact with and apply pressure to the layered prepreg during cooling. The apparatus can mold a fiber reinforced composite member without producing delamination in a thicker end portion of the layered prepreg without an increase in molding time.
    Type: Application
    Filed: July 2, 2018
    Publication date: October 25, 2018
    Applicant: IHI Corporation
    Inventors: Tsutomu Murakami, Kenro Obuchi, Shinichi Tanaka
  • Publication number: 20180304496
    Abstract: A fiber reinforced composite member molding apparatus includes a pair of molds for clamping layered prepreg, or stacked sheets of prepreg formed of long carbon fibers impregnated with resin, induction heating coils for heating thermoplastic resin contained in the prepreg via the molds, and cooling passages for cooling the resin via the molds after the resin is melted, wherein the molds each have a design surface brought into contact with the layered prereg, the design surface being divided into a plurality of regions, and a plurality of cells provided along the design surface to be open at the back of the design surface and individually correspond to the regions of the design surface, the induction heating coils are arranged in the cells, and the cooling passages are formed in each of the molds to run along the design surface. This configuration allows the molds to have sufficient rigidity and produces a uniform temperature distribution in heating and cooling.
    Type: Application
    Filed: June 25, 2018
    Publication date: October 25, 2018
    Applicant: IHI CORPORATION
    Inventors: Tsutomu MURAKAMI, Kenro OBUCHI, Shinichi TANAKA
  • Publication number: 20180104862
    Abstract: A fiber reinforced composite member molding apparatus comprises a pair of mold parts which are brought nearer to and away from each other, and in a mold clamping state, clamp laminated sheets of prepreg formed of woven fiber fabric impregnated with resin, and heat sources for heating the resin in the prepreg through the pair of mold parts, wherein the two mold parts each comprise a base mold and a design mold which is detachably attached to the base mold and brought into contact with the prepreg, wherein the design molds of the mold parts are made of a metal lower in thermal expansion rate than the base molds. The mold parts having such split structure can reduce the burden on operators handling replacement of the mold parts, and also can suppress, during heating for molding, the influence of thermal expansion of the mold parts upon a to-be-molded fiber reinforced composite member.
    Type: Application
    Filed: December 18, 2017
    Publication date: April 19, 2018
    Applicant: IHI Corporation
    Inventors: Tsutomu Murakami, Akira Kobiki, Masato Ishizaki
  • Publication number: 20180093398
    Abstract: In a fiber reinforced composite member molding apparatus comprising a lower mold having a cavity, an upper mold having a core which, in a mold clamping state, engages with the cavity in the lower mold and thereby clamps layered prepreg, and heat sources for heating the layered prepreg through the lower mold and the upper mold, and adapted to mold a fiber reinforced composite member from the layered prepreg by applying pressure while heating resin in the layered prepreg between the lower mold and the upper mold by the heat sources, the lower mold is equipped with a cavity heat-escape prevention portion and the upper mold is equipped with a core heat-escape prevention portion. During heating for molding, escape of heat from the periphery of the cavity of the upper mold and the periphery of the core of the lower mold can be prevented, which allows a fiber reinforced composite member to be molded with almost no defects such as wrinkles.
    Type: Application
    Filed: December 6, 2017
    Publication date: April 5, 2018
    Applicant: IHI CORPORATION
    Inventors: Masato ISHIZAKI, Akira KOBIKI, Tsutomu MURAKAMI
  • Patent number: 9695712
    Abstract: A boss for attachment of an auxiliary device to a fan case of an engine includes a pedestal including a plurality of accumulated layers of reinforcement fibers and a matrix combining the reinforcement fibers together, the pedestal including a bottom face in a shape capable of being in close contact with an outer periphery of the fan case; and an embedded body embedded in the pedestal and including a combining structure combinable with the auxiliary device.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: July 4, 2017
    Assignees: IHI Corporation, IHI AEROSPACE CO., LTD.
    Inventors: Osamu Otsu, Yu Shigenari, Takashi Harada, Tsutomu Murakami
  • Publication number: 20150336323
    Abstract: A blank sheet including a plurality of main fibers arranged in parallel with each other, auxiliary fibers and a resin that consolidates the fibers is heated to a temperature at which the resin softens, and then pressed against a fan blade mold with the direction of the main fibers aligned with the longitudinal direction of the fan blade mold. The fan blade mold is shaped so that the length thereof in the longitudinal direction along the surface of a center part thereof in the width direction is shorter than the length thereof in the longitudinal direction along the surface of end parts thereof in the width direction. When the blank sheet is pressed against the fan blade mold, a center part in the width direction of the blank sheet at an end part in the longitudinal direction is pulled with a greater force than end parts in the width direction of the blank sheet at the end part in the longitudinal direction, thereby preventing occurrence of wrinkling.
    Type: Application
    Filed: July 31, 2015
    Publication date: November 26, 2015
    Applicants: IHI Corporation, IHI AEROSPACE CO., LTD.
    Inventors: Takaomi INADA, Hideo MORITA, Hiroyuki YAGI, Tsutomu MURAKAMI, Shinichi TANAKA
  • Patent number: D809575
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: February 6, 2018
    Assignee: IHI CORPORATION
    Inventors: Masato Ishizaki, Tsutomu Murakami, Akira Kobiki
  • Patent number: D833489
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: November 13, 2018
    Assignee: IHI CORPORATION
    Inventors: Masato Ishizaki, Tsutomu Murakami, Akira Kobiki
  • Patent number: D834624
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: November 27, 2018
    Assignee: IHI CORPORATION
    Inventors: Masato Ishizaki, Tsutomu Murakami, Akira Kobiki
  • Patent number: D839326
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: January 29, 2019
    Assignee: IHI CORPORATION
    Inventors: Masato Ishizaki, Tsutomu Murakami, Akira Kobiki