Patents by Inventor Satoshi Nakatsuka

Satoshi Nakatsuka 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: 20230327530
    Abstract: A method of manufacturing a coil includes: a step of forming a winding portion extending twisting around an axis along a direction of the axis, the winding portion including a portion in an extending direction of the winding portion, the portion being a deformation allowing portion having a lower rigidity than the other portion; a step of forming an insulation film on the winding portion in the extending direction of the winding portion; and a step of compressing the winding portion on which the insulation film is formed, in the direction of the axis.
    Type: Application
    Filed: March 7, 2023
    Publication date: October 12, 2023
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Takeshi IKEMI, Akiko KASAMI, Takashi ARAI, Satoshi NAKATSUKA
  • Publication number: 20090262376
    Abstract: An object of the present invention is to install software in a computer to create a grain that replaces a conventional grain. The present invention provides a grain pattern for grain pattern printing created by a computer, the grain being characterized in that basic structures are repeatedly generated using a geometrical fractal in such a way that the generated basic structures include basic structures with a repetition mode changed.
    Type: Application
    Filed: August 31, 2007
    Publication date: October 22, 2009
    Inventors: Hideki Aoyama, Satoshi Nakatsuka, Hisayoshi Sato
  • Patent number: 6737171
    Abstract: Provided are a propylenic random copolymer of propylene and ethylene satisfying the following (1) to (5), a composition comprising the copolymer, a film and a stretched film of the copolymer or its composition, and a laminate film and a stretched laminate film comprising at least one layer of the copolymer or its composition. (1) The ethylene unit content (x, wt. %) of the copolymer is from 0.2 to 10 wt. %. (2) The copolymer has a melt index (MI, g/10 min) of from 0.1 to 4 g/10 min. (3) The relation between the boiling diethyl ether extraction (E, wt. %) of the copolymer and x satisfies the following (I) or (II); E≦0.253x+1.1 (0.2≦x<6)  (I) E≦2.6 (6≦x≦10)  (II) (4) The relation between the melting point (Tm, ° C.
    Type: Grant
    Filed: November 22, 2002
    Date of Patent: May 18, 2004
    Assignee: Idemitsu Petrochemical Co., Ltd.
    Inventors: Yasushi Seta, Satoshi Nakatsuka, Michihiro Sawada, Ryoichi Tsunori
  • Patent number: 6649725
    Abstract: Disclosed are a binary random copolymer of propylene and ethylene, and a film to be formed by sheeting the copolymer. The film has good heat-sealability, high stiffness, good anti-blocking and slipping properties, and high transparency. As having excellent heat-sealability at low-temperature, the copolymer and its film are favorably used as sealant layers of laminate films.
    Type: Grant
    Filed: October 14, 1997
    Date of Patent: November 18, 2003
    Assignee: Idemitsu Petrochemical Co., Ltd.
    Inventors: Yasushi Seta, Satoshi Nakatsuka, Michihiro Sawada, Ryoichi Tsunori, Tokutaro Kimura, Yutaka Minami
  • Publication number: 20030120014
    Abstract: Provided are a propylenic random copolymer of propylene and ethylene satisfying the following (1) to (5), a composition comprising the copolymer, a film and a stretched film of the copolymer or its composition, and a laminate film and a stretched laminate film comprising at least one layer of the copolymer or its composition.
    Type: Application
    Filed: November 22, 2002
    Publication date: June 26, 2003
    Applicant: Idemitsu Petrochemical Co., Ltd.
    Inventors: Yasushi Seta, Satoshi Nakatsuka, Michihiro Sawada, Ryoichi Tsunori
  • Patent number: 6420021
    Abstract: Disclosed are a binary random copolymer of propylene and ethylene, and a film to be formed by sheeting the copolymer. The film has good heat-sealability, high stiffness, good anti-blocking and slipping properties, and high transparency. As having excellent heat-sealability at low-temperature, the copolymer and its film are favorably used as sealant layers of laminate films.
    Type: Grant
    Filed: November 22, 2000
    Date of Patent: July 16, 2002
    Assignee: Idemitsu Petrochemical Co., Ltd.
    Inventors: Yasushi Seta, Satoshi Nakatsuka, Michihiro Sawada, Ryoichi Tsunori, Tokutaro Kimura, Yutaka Minami
  • Publication number: 20010053453
    Abstract: Disclosed are a binary random copolymer of propylene and ethylene, and a film to be formed by sheeting the copolymer. The film has good heat-sealability, high stiffness, good anti-blocking and slipping properties, and high transparency. As having excellent heat-sealability at low-temperature, the copolymer and its film are favorably used as sealant layers of laminate films.
    Type: Application
    Filed: October 14, 1997
    Publication date: December 20, 2001
    Inventors: YASUSHI SETA, SATOSHI NAKATSUKA, MICHIHIRO SAWADA, RYOICHI TSUNORI, TOKUTARO KIMURA, YUTAKA MINAMI
  • Patent number: 6304162
    Abstract: An anisotropic permanent magnet with an improved surface magnetic field peak value is provided, which has at least one active surface and is oriented and magnetized simultaneously in such a manner that axes of easy magnetization of magnetic powder constituting the permanent magnet pass from the active surface through an interior of the magnet to return to the active surface, wherein a standard magnetic pole and a background opposite magnetic pole are present as an island and a sea, and the ratio of an area of the standard magnetic pole to an area of the background opposite magnetic pole is 9 to 90:91 to 10. Also, a permanent magnet for attraction with an improved attraction force is provided, wherein a total area &Sgr;S of an S pole surface and a total area &Sgr;N of an N pole surface satisfy a relationship: 0.5×&Sgr;S≦&Sgr;N≦2.0×&Sgr;S or 0. 5×&Sgr;N≦&Sgr;S≦2.0×&Sgr;N.
    Type: Grant
    Filed: June 20, 2000
    Date of Patent: October 16, 2001
    Assignee: Toda Kogyo Corporation
    Inventors: Satoshi Nakatsuka, Osamu Sasaki, Masaharu Abe
  • Patent number: 6130305
    Abstract: Disclosed are a binary random copolymer of propylene and ethylene, and a film to be formed by sheeting the copolymer. The film has good impact strength, good heat-sealability, high stiffness, good anti-blocking and slipping properties, and high transparency. As having excellent heat-sealability at low-temperature, the copolymer and its film are favorably used as substrate layers of laminated or co-extruded multi-layered films.
    Type: Grant
    Filed: October 21, 1997
    Date of Patent: October 10, 2000
    Assignee: Idemitsu Petrochemical Co., Ltd.
    Inventors: Yasushi Seta, Ryoichi Tsunori, Satoshi Nakatsuka
  • Patent number: 5416457
    Abstract: A lateral orientation type of anisotropic permanent magnet having a face of magnetic application and at least one lateral face adjacent to the face of magnetic application. An axis of easy magnetization of particles of a magnetic powder constituting the permanent magnet is oriented substantially along lines from the lateral face toward the face of magnetic application to increase the peak value of the surface magnetic flux density at the face of magnetic application.
    Type: Grant
    Filed: August 10, 1994
    Date of Patent: May 16, 1995
    Assignee: Kawasaki Steel Corporation
    Inventors: Satoshi Nakatsuka, Akira Yasuda, Itsuo Tanaka, Koichi Nushiro, Takahiro Kikuchi
  • Patent number: 4702852
    Abstract: There is provided a multipolarly magnetized anisotropic plastics magnet formed by molding, followed by solidifying, a composition composed of a magnetic powder and an organic binder in the presence of a magnetic field, and subsequently multipolarly magnetizing the thus obtained anisotropic plastics magnet, said magnetic powder being magnetoplumbite ferrite which is characterized by that the green density is not less than 3.1 g/cm.sup.3 and the intrinsic coercive force of the green compact is not more than 2500 oersteds. The plastics magnet is useful as an anisotropic plastics magnet rotor having a great value of surface magnetic field.
    Type: Grant
    Filed: February 12, 1987
    Date of Patent: October 27, 1987
    Assignee: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Takashi Sakauchi, Fumihiko Mohri, Naohisa Tomoda, Satoshi Nakatsuka