Patents by Inventor Yoshiki Fujita

Yoshiki Fujita 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: 20240113247
    Abstract: An infrared detecting device is provided. The infrared detecting device includes: a semiconductor substrate; a first layer having a first conductivity type on the semiconductor substrate; a light receiving layer on the first layer; and a second layer having a second conductivity type on the light receiving layer. A part of the first layer, the light receiving layer, and the second layer form a mesa structure. The second layer contains AlzIn1-zSb (0.05<z<0.18). The side surfaces and an upper surface of the mesa structure are covered with the protective layer. A part of an upper surface of the second layer that forms an interface between the second layer and the protective layer has an oxide layer made of a constituent material of the second layer. The oxide layer includes an oxide of Al and has no oxide of Sb.
    Type: Application
    Filed: June 8, 2023
    Publication date: April 4, 2024
    Applicant: Asahi Kasei Microdevices Corporation
    Inventors: Osamu MOROHARA, Yoshiki SAKURAI, Hiromi FUJITA, Hirotaka GEKA
  • Publication number: 20240091833
    Abstract: A cold rolling mill rolling condition calculation method includes: an estimation step of estimating a rolling constraint condition with respect to a target steady rolling condition of a roll target material, by inputting second multi-dimensional data to a prediction model, the prediction model having been trained with explanatory variable and response variable, the explanatory variable being first multi-dimensional data generated based on non-steady rolling performance data, among past rolling performance in rolling a roll material by a cold rolling mill, and the response variable being steady rolling performance data and rolling constraint condition data during steady rolling, and the second multi-dimensional data having been generated based on non-steady rolling performance data of the roll target material; and a change step of changing the target steady rolling condition so that the estimated rolling constraint condition satisfies a predetermined condition.
    Type: Application
    Filed: October 29, 2021
    Publication date: March 21, 2024
    Applicant: JFE Steel Corporation
    Inventors: Noriki Fujita, Takuya Kitamura, Tetsuya Arakawa, Yoshiki Ikoma, Miwa Ohashi
  • Patent number: 11449041
    Abstract: A food production management system that manages a food production process group having a plurality of production processes is disclosed. The food production management system includes a first acquisition unit and an output unit. The first acquisition unit acquires throughputs of each of the plurality of production processes. The output unit outputs first information. The first information includes information representing the throughputs of each of the plurality of production processes.
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: September 20, 2022
    Assignee: ISHIDA CO., LTD.
    Inventors: Yoshinori Tarumoto, Youichirou Abe, Norio Kawanishi, Yoshiki Fujita, Taiga Nada
  • Publication number: 20200371508
    Abstract: A food production management system that manages a food production process group having a plurality of production processes is disclosed. The food production management system includes a first acquisition unit and an output unit. The first acquisition unit acquires throughputs of each of the plurality of production processes. The output unit outputs first information. The first information includes information representing the throughputs of each of the plurality of production processes.
    Type: Application
    Filed: May 21, 2020
    Publication date: November 26, 2020
    Inventors: Yoshinori TARUMOTO, Youichirou ABE, Norio KAWANISHI, Yoshiki FUJITA, Taiga NADA
  • Patent number: 8349217
    Abstract: The present invention has features in that a lithium transition metal silicate obtained by sintering a mixture containing a transition metal compound containing at least one transition metal selected from the group consisting of Mn, Fe, Co and Ni; a lithium compound; and a silicon-based polymer compound, is used as a positive electrode material for a secondary battery. The lithium transition metal silicate of the present invention has a high lithium occlusion and release efficiency per unit amount of a transition metal. A secondary battery in which the cost is low, stability and safety are high, and superior charge and discharge characteristics are exhibited can be provided.
    Type: Grant
    Filed: March 26, 2008
    Date of Patent: January 8, 2013
    Assignees: Tokyo Institute of Technology, Dow Corning Toray Co., Ltd
    Inventors: Atsuo Yamada, Shogo Hayase, Yoshiki Fujita, Shinichi Nishimura, Mamoru Tachikawa, Takakazu Hino
  • Publication number: 20100140540
    Abstract: The present invention has features in that a lithium transition metal silicate obtained by sintering a mixture containing a transition metal compound containing at least one transition metal selected from the group consisting of Mn, Fe, Co and Ni; a lithium compound; and a silicon-based polymer compound, is used as a positive electrode material for a secondary battery. The lithium transition metal silicate of the present invention has a high lithium occlusion and release efficiency per unit amount of a transition metal. A secondary battery in which the cost is low, stability and safety are high, and superior charge and discharge characteristics are exhibited can be provided.
    Type: Application
    Filed: March 26, 2008
    Publication date: June 10, 2010
    Inventors: Atsuo Yamada, Shogo Hayase, Yoshiki Fujita, Shinichi Nishimura, Mamoru Tachikawa, Takakazu Hino
  • Patent number: 6745472
    Abstract: A method of manufacturing a steel ball for a rolling bearing, said method comprising: a molding step of forming a steel wire cut at a predetermined length into a raw ball having a band portion by a pair of molding forms having respectively hemispherical concave portions and relief grooves in peripheries of said concave portions on their respective opposing faces, said band portion being formed on a surface of said raw ball along said relief grooves by compressing said steel wire by said molding forms in a state in which both ends of said steel wire are sandwiched between said concave portions; and a tumbler working step of removing said band portion from the surface of the raw ball by tumbling.
    Type: Grant
    Filed: June 27, 2002
    Date of Patent: June 8, 2004
    Assignee: Koyo Seiko Co., Ltd.
    Inventors: Yoshiki Fujita, Hajime Tazumi, Kazuyuki Nishikita, Hideji Yoshida
  • Publication number: 20030037439
    Abstract: A method of manufacturing a steel ball for a rolling bearing, said method comprising: a molding step of forming a steel wire cut at a predetermined length into a raw ball having a band portion by a pair of molding forms having respectively hemispherical concave portions and relief grooves in peripheries of said concave portions on their respective opposing faces, said band portion being formed on a surface of said raw ball along said relief grooves by compressing said steel wire by said molding forms in a state in which both ends of said steel wire are sandwiched between said concave portions; and a tumbler working step of removing said band portion from the surface of the raw ball by tumbling.
    Type: Application
    Filed: June 27, 2002
    Publication date: February 27, 2003
    Inventors: Yoshiki Fujita, Hajime Tazumi, Kazuyuki Nishikita, Hideji Yoshida
  • Patent number: 5422524
    Abstract: An antifriction bearing includes a fixed ring which comprises a steel containing up to about 10% of residual austenite. An alternator for vehicles includes a stator mounted on a frame, a rotor having its rotary shaft rotatably supported by a pair of bearings on the frame and a drive pulley mounted on one end of the shaft projecting outward from the frame. The outer ring of at least the bearing toward the pulley comprises a steel containing up to about 10% of residual austenite.
    Type: Grant
    Filed: November 16, 1993
    Date of Patent: June 6, 1995
    Assignees: Koyo Seiko Co., Ltd., Nippondenso Co., Ltd.
    Inventors: Sigenobu Nakamura, Tutomu Siga, Kenzo Mitani, Yoshiki Fujita, Masayuki Kitamura, Hiroyuki Miyazaki, Teruo Hoshino
  • Patent number: 4293171
    Abstract: Of the components of an anti-friction bearing, the metallic components to be subjected to rolling friction or sliding friction, such as rolling elements, are coated with a multiplicity of metal layers by ion plating. The uppermost layer is made of soft metal with lubricating property. The solid solubility of the metal of each intermediate layer in each adjacent metal is higher than the solid solubility of the soft metal in the metal material of the component.
    Type: Grant
    Filed: October 19, 1979
    Date of Patent: October 6, 1981
    Assignee: Koyo Seiko Company Limited
    Inventors: Ken-Ichi Kakumoto, Yoshiki Fujita
  • Patent number: 4191432
    Abstract: An annular seal member secured to an outer ring is formed on its inner periphery with a highly flexible seal lip extending radially inwardly thereof along the side face of a peripheral stepped portion in the shoulder of the inner ring and spaced apart from the side face by a small clearance. The seal lip has an annular projection axially projecting from the inner side of its inner peripheral portion and lightly in contact with the side face of the stepped portion of the inner ring. The inner peripheral face of the seal lip and the peripheral bottom face of the stepped portion opposed to, and spaced apart by a small clearance from, the inner peripheral face are tapered axially inwardly of the inner ring. The tapered inner peripheral face of the seal lip is not greater than the tapered bottom face of the stepped portion in axial length. The bearing has improved dustproofness, leakproofness and rotation performance afforded by the seal assembly.
    Type: Grant
    Filed: October 12, 1978
    Date of Patent: March 4, 1980
    Assignee: Koyo Seiko Company Limited
    Inventors: Toshio Miki, Yoshiki Fujita, Yoshihisa Kawakami
  • Patent number: RE38936
    Abstract: An antifriction bearing includes a fixed ring which comprises a steel containing up to about 10% of residual austenite. An alternator for vehicles includes a stator mounted on a frame, a rotor having its rotary shaft rotatably supported by a pair of bearings on the frame and a drive pulley mounted on one end of the shaft projecting outward from the frame. The outer ring of at least the bearing toward the pulley comprises a steel containing up to about 10% of residual austenite.
    Type: Grant
    Filed: January 9, 2002
    Date of Patent: January 17, 2006
    Assignees: Koyo Seiko Co., Ltd., Denso Corporation
    Inventors: Sigenobu Nakamura, Tutomu Siga, Kenzo Mitani, Yoshiki Fujita, Masayuki Kitamura, Hiroyuki Miyazaki, Teruo Hoshino
  • Patent number: RE37967
    Abstract: An antifriction bearing includes a fixed ring which comprises a steel containing up to about 10% of residual austenite. An alternator for vehicles includes a stator mounted on a frame, a rotor having its rotary shaft rotatably supported by a pair of bearings on the frame and a drive pulley mounted on one end of the shaft projecting outward from the frame. The outer ring of at least the bearing toward the pulley comprises a steel containing up to about 10% of residual austenite.
    Type: Grant
    Filed: June 5, 1997
    Date of Patent: January 21, 2003
    Assignees: Koyo Seiko Co., Ltd., Denso Corporation
    Inventors: Sigenobu Nakamura, Tutomu Siga, Kenzo Mitani, Yoshiki Fujita, Masayuki Kitamura, Hiroyuki Miyazaki, Teruo Hoshino