Patents by Inventor Hideki Oshima

Hideki Oshima 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: 20050148459
    Abstract: A process for producing a modified particle, a carrier or a catalyst component for addition polymerization, which comprises the steps of (1) contacting a compound (a) represented by the defined formula M1L13 with a compound (b) represented by the defined formula R1t-1TH, thereby producing a contact product, and (2) contacting the contact product with a compound (c) represented by the defined formula R2t-2TH2 in the presence of a particle (d); a process for producing a pre-polymerized catalyst component or a catalyst for addition polymerization, which comprises the steps of (1) contacting the above modified particle with a transition metal compound and optionally an organoaluminum compound, thereby producing a primary catalyst, and (2) pre-polymerizing an olefin in the presence of the primary catalyst; a process for producing a catalyst for addition polymerization, which comprises the step of contacting the above catalyst component with a transition metal compound and optionally an organoaluminum compound; and
    Type: Application
    Filed: September 7, 2004
    Publication date: July 7, 2005
    Inventors: Hideki Oshima, Makoto Satoh
  • Patent number: 6870015
    Abstract: There are provided: (I) a catalyst component for addition polymerization comprising: (i) a transition metal compound having (a) two cyclopentadiene type anion skeleton-carrying groups, which are linked with each other directly or through a bridging group, and (b) a hafnium atom as its central metal, and (ii) a transition metal compound having (a) two substituted cyclopentadiene type anion skeleton-carrying groups, which are not linked with each other, and (b) a zirconium atom or a titanium atom as its central atom; and (II) a process for producing a catalyst for addition polymerization, which comprises the step of contacting the above catalyst component with a co-catalyst component for activation.
    Type: Grant
    Filed: September 25, 2002
    Date of Patent: March 22, 2005
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Hideki Oshima, Kazuo Takaoki
  • Publication number: 20040209762
    Abstract: A metal compound obtained by a process comprising the step of contacting, in a specific ratio, a compound represented by the formula M1L1r, a compound represented by the formula R1s-1TH, and a compound represented by the formula R24-nJ(OH)n; a catalyst component for addition polymerization comprising the metal compound; a catalyst for addition polymerization using the catalyst component; and a process for producing an addition polymer using the catalyst.
    Type: Application
    Filed: January 9, 2004
    Publication date: October 21, 2004
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Kazuo Takaoki, Hideki Oshima, Makoto Satoh
  • Patent number: 6779637
    Abstract: Disclosed is a dynamic damping device for a steering system of an automotive vehicle, which equipped with a telescopic steering column, including a plurality of mutually independent dynamic dampers, each including a mass member and a spring member for elastically supporting the mass member to the steering column or wheel. At least two of natural frequencies of the plurality of dynamic dampers are tuned to a higher and a lower frequency range in relation to a central value of a range of variation in a natural frequency of the steering wheel due to an expansion or contraction of the telescopic steering column, within the range of vibration in the natural frequency of the steering wheel. Further, a difference between adjacent ones of the natural frequencies of the plurality of dynamic dampers is made held within 10-40% of the central value of the range of vibration in the natural frequency of the steering wheel.
    Type: Grant
    Filed: July 26, 2002
    Date of Patent: August 24, 2004
    Assignee: Tokai Rubber Industries, Ltd.
    Inventors: Takahiro Aoi, Masaaki Hamada, Hideki Oshima, Rentaro Kato
  • Publication number: 20030069127
    Abstract: A modified particle obtained by contacting the following (a), the following (b), the following (c) and a particle (d) with one another,
    Type: Application
    Filed: August 26, 2002
    Publication date: April 10, 2003
    Inventors: Kazuo Takaoki, Takuya Ogane, Hideki Oshima, Yasuki Fujiwara, Kenichiro Yada, Masatada Tasaka
  • Publication number: 20030060579
    Abstract: There are provided:
    Type: Application
    Filed: September 25, 2002
    Publication date: March 27, 2003
    Inventors: Hideki Oshima, Kazuo Takaoki
  • Publication number: 20030019704
    Abstract: Disclosed is a dynamic damping device for a steering system of an automotive vehicle, which equipped with a telescopic steering column, including a plurality of mutually independent dynamic dampers, each including a mass member and a spring member for elastically supporting the mass member to the steering column or wheel. At least two of natural frequencies of the plurality of dynamic dampers are tuned to a higher and a lower frequency range in relation to a central value of a range of variation in a natural frequency of the steering wheel due to an expansion or contraction of the telescopic steering column, within the range of vibration in the natural frequency of the steering wheel. Further, a difference between adjacent ones of the natural frequencies of the plurality of dynamic dampers is made held within 10-40% of the central value of the range of vibration in the natural frequency of the steering wheel.
    Type: Application
    Filed: July 26, 2002
    Publication date: January 30, 2003
    Applicant: TOKAI RUBBER INDUSTRIES, LTD.
    Inventors: Takahiro Aoi, Masaaki Hamada, Hideki Oshima, Rentaro Kato
  • Patent number: 5276567
    Abstract: A tape player includes a changeover mechanism for shifting the position of a tape travel direction changeover member in response to the reciprocating movement of a rewind pushbutton actuator, a head channel selector switch connected to the changeover mechanism via a resilient connecting mechanism and shiftable in response to the shifting operation of the changeover mechanism, silence detecting for detecting a blank interval between recordings on a magnetic tape and producing a silence interval detection signal upon detection of the blank interval, a latch mechanism for releasably holding the rewind pushbutton actuator in its advanced position, the latch mechanism being responsive to the silence interval detection signal for releasing the rewind pushbutton actuator, and blocking member for blocking the shifting operation of the head channel selector switch during the forward movement of the rewind pushbutton actuator.
    Type: Grant
    Filed: March 12, 1993
    Date of Patent: January 4, 1994
    Assignee: Tuner Company Limited
    Inventors: Tamaki Ohashi, Hideki Oshima
  • Patent number: 5130872
    Abstract: A cassette tape player having a quick traverse lever and a rewinding lever, each mounted on a chassis of the player so as to be movable forward or rearward in a reciprocating manner in a longitudinal direction of the chassis. The quick traverse lever moves forward so as to move a head plate rightward in order to perform a quick traverse operation of a tape of the player, the head plate being mounted on the chassis so as to be slidable rightward or leftward along the chassis. The cassette tape player further includes an actuating mechanism for effecting a change in the travel direction of the tape, the actuating mechanism being swingably mounted on the chassis, while being movable forward or rearward in the longitudinal direction of the chassis. The cassette player further includes a spring mounted on the chassis for urging the actuating mechanism rearward and for biasing the actuating mechanism counterclockwise in its normal condition.
    Type: Grant
    Filed: May 30, 1990
    Date of Patent: July 14, 1992
    Assignee: Tuner Co., Ltd.
    Inventors: Tamaki Ohashi, Hideki Oshima