Patents by Inventor Kei Ohno

Kei Ohno 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: 12257905
    Abstract: To arrange a power unit, an electric power conversion unit, and engine-related components compactly, a drive motor, a reduction drive, a generator, and an engine body are integrally arranged in this order in a vehicle width direction of a power unit compartment such that respective heights thereof are substantially the same. An electric power conversion unit, in which a motor inverter, an electric power generation inverter, and a DC/DC converter are integrated, is arranged above the drive motor, the reduction drive, and the generator. Engine-related components such as a low-voltage battery, an air cleaner, and an oil filter are arranged above the engine body.
    Type: Grant
    Filed: December 7, 2022
    Date of Patent: March 25, 2025
    Assignee: Mazda Motor Corporation
    Inventors: Osami Ohno, Satoshi Maruyama, Hiroshi Tanaka, Kei Yonemori, Akihiro Furukawa, Li-Hsuan Huang, Chih-Yuan Chen, Iou-Uei Jang
  • Publication number: 20250034172
    Abstract: An organic light emitting device using a compound of the following general formula has excellent characteristics. R1 to R4 each are a hydrogen atom, a deuterium atom, an alkyl group, an aryl group, or a donor group; two or more of R1 to R4 are donor groups, and at least one thereof is a substituted ring-fused carbazol-9-yl group; X1 to X3 each are N or C(R), R is a hydrogen atom, a deuterium atom or a substituent; Ar1 and Ar2 each are an aryl group; L1 is a single bond or a linking group.
    Type: Application
    Filed: November 2, 2022
    Publication date: January 30, 2025
    Inventors: Yoshitake SUZUKI, Masataka YAMASHITA, Takuya HIGA, Naomi SHIMAMURA, Satoshi OHNO, Songhye HWANG, Kousei KANAHARA, Kei MORIMOTO
  • Publication number: 20090086355
    Abstract: To provide a spindle stage for testing a magnetic head in which high precision servo following can be performed by an inexpensive VCM mechanism without using a piezoelectric element, and to provide a device for mounting/demounting a magnetic head automatically. In a spindle stage for testing a magnetic head which includes: a head arm device having a head arm portion which is driven to swing by a VCM mechanism; and an HGA attached to the head arm portion, and loads the head arm device and the HGA relative to a surface of a medium in rotation to measure the electrical and mechanical characteristics, wherein the spindle stage includes: a fitting portion in which a swaging boss of the HGA is removably fitted; and a clamping member which moves between a locking position in which the swaging boss fitted in the fitting portion is locked and a releasing position in which the swaging boss can be freely fitted and removed into and from the fitting portion.
    Type: Application
    Filed: December 25, 2006
    Publication date: April 2, 2009
    Applicant: International Manufacturing and Engineering Services Co., Ltd.
    Inventors: Kei Ohno, Tomoki Adachi
  • Patent number: 5942431
    Abstract: DNA sequences encoding lipases and method for producing the lipases. The disclosed lipases are industrially useful in, for example, detergents, food processing, paper making, oil manufacturing.
    Type: Grant
    Filed: July 10, 1997
    Date of Patent: August 24, 1999
    Assignee: Novo Nordisk A/S
    Inventors: Tadashi Yoneda, Harumi Takada, Kei Ohno, Junji Sasuga