Patents by Inventor Shigeo Kawamura

Shigeo Kawamura 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: 9242283
    Abstract: A control apparatus of a rolling mill includes a load top/bottom distributor distributing loads as top and bottom side loads, a load top/bottom variation identification mechanism identifying load variation components occurring in connection with a rotational position of rolls from the top and bottom side loads, and top/bottom identified load variation storage storing, for each rotational position of rolls, top and bottom side variation components of the load in a kiss-roll condition identified by the load top/bottom variation identification mechanism. A manipulated variable computer computes a roll gap instruction value based on the top and bottom side variation components of the rolling load identified by the load top/bottom variation identification mechanism, and the top side variation component and the bottom side variation component of the load in a kiss-roll condition stored in the top/bottom identified load variation storage.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: January 26, 2016
    Assignee: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
    Inventors: Hiroyuki Imanari, Shigeo Kawamura, Kazuyuki Maruyama
  • Publication number: 20130213103
    Abstract: A control apparatus of a rolling mill includes a load top/bottom distributor distributing loads as top and bottom side loads, a load top/bottom variation identification mechanism identifying load variation components occurring in connection with a rotational position of rolls from the top and bottom side loads, and top/bottom identified load variation storage storing, for each rotational position of rolls, top and bottom side variation components of the load in a kiss-roll condition identified by the load top/bottom variation identification mechanism. A manipulated variable computer computes a roll gap instruction value based on the top and bottom side variation components of the rolling load identified by the load top/bottom variation identification mechanism, and the top side variation component and the bottom side variation component of the load in a kiss-roll condition stored in the top/bottom identified load variation storage.
    Type: Application
    Filed: November 22, 2010
    Publication date: August 22, 2013
    Applicant: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
    Inventors: Hiroyuki Imanari, Shigeo Kawamura, Kazuyuki Maruyama
  • Patent number: 8352975
    Abstract: A chucking device includes a turntable fixed to a shaft having a central axis and a cone arranged axially above the turntable. An annular yoke is arranged above a sliding portion of the cone and fixed to the shaft, and a clamp magnet is fixed to the yoke through an adhesive agent. The yoke includes an upper surface having an annular recess defined in a concentric relationship with the central axis, the adhesive agent being applied on a region of the upper surface existing radially inwards of the recess. The recess includes a radial outer wall parallel to the central axis and a radial inner wall inclined radially inwards and axially upwards. The angle between the radial outer wall and a lower surface of the clamp magnet is greater than the angle between the radial inner wall and the lower surface of the clamp magnet.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: January 8, 2013
    Assignee: Nidec Corporation
    Inventors: Haruhiko Ito, Toshihide Sonoda, Daisuke Tsunashima, Takuya Yamane, Shigeo Kawamura, Yoshihisa Kitamura, Hisakazu Motomochi
  • Patent number: 7979873
    Abstract: A chucking device for removably holding a disk with a central opening, includes a shaft coaxially arranged with a specified center axis; a turntable fixed to the shaft, the turntable having a disk support surface for supporting the disk; and a resin-made cone arranged axially above the turntable, the cone including a shaft-fixed portion fixed to the shaft, a disk holding portion having an annular disk holding surface inclined radially outwardly and axially downwardly, and an arm portion for radially interconnecting the shaft-fixed portion and the disk holding portion. Herein, the arm portion includes a support portion extending radially outwardly from the shaft-fixed portion and an elastically deformable portion joined to the support portion for being elastically deformed to axially downwardly move the disk holding portion as the disk comes into contact with the disk holding portion.
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: July 12, 2011
    Assignee: Nidec Corporation
    Inventors: Haruhiko Ito, Toshihide Sonoda, Takuya Yamane, Shigeo Kawamura, Yoshihisa Kitamura, Hisakazu Motomochi
  • Publication number: 20110035764
    Abstract: A chucking device includes a turntable fixed to a shaft having a central axis and a cone arranged axially above the turntable. An annular yoke is arranged above a sliding portion of the cone and fixed to the shaft, and a clamp magnet is fixed to the yoke through an adhesive agent. The yoke includes an upper surface having an annular recess defined in a concentric relationship with the central axis, the adhesive agent being applied on a region of the upper surface existing radially inwards of the recess. The recess includes a radial outer wall parallel to the central axis and a radial inner wall inclined radially inwards and axially upwards. The angle between the radial outer wall and a lower surface of the clamp magnet is greater than the angle between the radial inner wall and the lower surface of the clamp magnet.
    Type: Application
    Filed: October 20, 2010
    Publication date: February 10, 2011
    Applicant: NIDEC CORPORATION
    Inventors: Haruhiko Ito, Toshihide Sonoda, Daisuke Tsunashima, Takuya Yamane, Shigeo Kawamura, Yoshihisa Kitamura, Hisakazu Motomochi
  • Patent number: 7873971
    Abstract: A motor includes a chucking device to hold a disk having a central opening in a detachable manner. In the chucking device, a turntable part is arranged above a rotor holder and has a disk support surface for supporting the disk. An axially slidable cone part is arranged above the turntable part. A resilient member is axially arranged between the turntable part and the cone part upwardly biases the cone part. Further, the turntable part includes an inner table made of a metal and fixed to the shaft, and an outer table made of a resin material and fixed to an outside of the inner table. The outer table has the disk support surface and is axially spaced apart from the rotor holder in a position where the inner table and the outer table are fixed to each other.
    Type: Grant
    Filed: February 22, 2008
    Date of Patent: January 18, 2011
    Assignee: Nidec Corporation
    Inventors: Haruhiko Ito, Takuya Yamane, Shigeo Kawamura, Yoshihisa Kitamura
  • Publication number: 20090064212
    Abstract: A chucking device for removably holding a disk with a central opening, includes a shaft coaxially arranged with a specified center axis; a turntable fixed to the shaft, the turntable having a disk support surface for supporting the disk; and a resin-made cone arranged axially above the turntable, the cone including a shaft-fixed portion fixed to the shaft, a disk holding portion having an annular disk holding surface inclined radially outwardly and axially downwardly, and an arm portion for radially interconnecting the shaft-fixed portion and the disk holding portion. Herein, the arm portion includes a support portion extending radially outwardly from the shaft-fixed portion and an elastically deformable portion joined to the support portion for being elastically deformed to axially downwardly move the disk holding portion as the disk comes into contact with the disk holding portion.
    Type: Application
    Filed: August 29, 2008
    Publication date: March 5, 2009
    Applicant: NIDEC CORPORATION
    Inventors: Haruhiko ITO, Toshihide SONODA, Takuya YAMANE, Shigeo KAWAMURA, Yoshihisa KITAMURA, Hisakazu MOTOMOCHI
  • Publication number: 20080209454
    Abstract: A motor includes a chucking device to hold a disk having a central opening in a detachable manner. In the chucking device, a turntable part is arranged above a rotor holder and has a disk support surface for supporting the disk. An axially slidable cone part is arranged above the turntable part. A resilient member is axially arranged between the turntable part and the cone part upwardly biases the cone part. Further, the turntable part includes an inner table made of a metal and fixed to the shaft, and an outer table made of a resin material and fixed to an outside of the inner table. The outer table has the disk support surface and is axially spaced apart from the rotor holder in a position where the inner table and the outer table are fixed to each other.
    Type: Application
    Filed: February 22, 2008
    Publication date: August 28, 2008
    Applicant: NIDEC CORPORATION
    Inventors: Haruhiko ITO, Takuya YAMANE, Shigeo KAWAMURA, Yoshihisa KITAMURA
  • Patent number: 5969055
    Abstract: A liquid crystal alignment agent containing at least two kinds of polymers selected from the group consisting of polyamic acids and imidized polymers and having a structure obtained by dehydration and ring closure of polyamic acid. In the at least two kinds of polymers contained in the liquid crystal alignment agent, the polymer of higher imidization degree has a smaller surface free energy. The liquid crystal alignment agent gives a liquid crystal display device having less stuck image and high pretilt angle.
    Type: Grant
    Filed: January 15, 1998
    Date of Patent: October 19, 1999
    Assignee: JSR Corporation
    Inventors: Michinori Nishikawa, Kyouyu Yasuda, Shigeo Kawamura, Tsukasa Toyoshima, Yasuo Matsuki, Kengo Wakabayashi
  • Patent number: 5894469
    Abstract: A disk file apparatus having a storage device (4) for multistageously storing disk cartridges (3) each containing a disk therein while keeping each of said disk cartridges horizontal, a drive device (5), and an automatic disk exchanging device (7) including a carrier device (6) for taking out a disk cartridge in between said storage device and said drive device, carrying the disk cartridge vertically and supplying the disk cartridge, wherein: slide mechanisms (60) are provided on a carrier frame (17) so that the opening/closing of claw arms (24) of a holder (21) provided in the carrier device is interlocked with the going-in-and-out operation of the holder mechanically; the carrier frame is supported so as to be rotatable in the form of a cantilever on the horizontal center of a cartridge storage portion inside thereof; and an inverting device (33) having a solenoid (50) and clutch gears (46, 47) is provided in a holder carrying device (32).
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: April 13, 1999
    Assignee: NKK Corporation
    Inventors: Kazuhiro Usami, Shigeo Kawamura
  • Patent number: 5700860
    Abstract: A liquid crystal aligning agent, which contains (1) at least one polymer selected from a polyamic acid and an imidized polymer therefrom; (2) at least one first solvent selected from the group consisting of N-alkyl-2-pyrrolidones, lactones and 1,3-dialkyl-2-imidazolidinones; (3) at least one second solvent from (a) a phenyl ether solvent of the formula (I): ##STR1## and (b) an ester ether solvent of the formula (II) ##STR2## wherein R.sup.1 -R.sup.6, a, b and c are as defined herein.
    Type: Grant
    Filed: March 27, 1996
    Date of Patent: December 23, 1997
    Assignee: Japan Synthetic Rubber Co., Ltd.
    Inventors: Michinori Nishikawa, Tsuyoshi Miyamoto, Shigeo Kawamura, Kyouyu Yasuda, Yasuaki Mutsuga, Yasuo Matsuki
  • Patent number: 5698135
    Abstract: A liquid crystal-aligning agent comprising at least one of a polyamic acid obtained by reacting (A) a tetracarboxylic acid dianhydride consisting of 70 to 98 mole % of a dianhydride of a tetracarboxylic acid such as ##STR1## or the like, and 2 to 30 mole % of a dianhydride of a cyclobutanetetracarboxylic acid, and (B) a diamine compound, and a polymer obtained by imidizing the polyamic acid.
    Type: Grant
    Filed: December 7, 1995
    Date of Patent: December 16, 1997
    Assignee: Japan Synthetic Rubber Co., Ltd., a Japanese Corporation
    Inventors: Michinori Nishikawa, Shigeo Kawamura, Yasuo Matsuki, Kyouyu Yasuda, Tsuyoshi Miyamoto
  • Patent number: 5577014
    Abstract: A disk cartridge opposite-insertion preventing mechanism has levers 11 pivoted on shafts 12 in opposite sides of a carrying tray 10 into which a disk cartridge 1 is inserted. Torsion springs 13 are provided for urging the levers to project into the carrying tray; and projections 14 are formed at respective forward ends of the levers so as to be bent inward to permit the projections 14 to engage with terraced grooves 2 provided in opposite sides of a forward end portion of the disk cartridge 1. In this manner the insertion of the disk cartridge is prevented by the engagement between the projections and the grooves when the disk cartridge is inserted in a direction opposite to normal.
    Type: Grant
    Filed: January 26, 1995
    Date of Patent: November 19, 1996
    Assignee: NKK Corporation
    Inventor: Shigeo Kawamura
  • Patent number: 4268501
    Abstract: A stable suppository useful as an antiasthmatic agent containing 3-formylamino-4-hydroxy-.alpha.-[N-(1-methyl-2-p-methoxyphenylethyl)aminom ethyl]benzyl alcohol.1/2fumarate monohydrate, polyvinyl pyrrolidone, and at least one of cyclodextrin, dextran and magnesium metasilicate aluminate together with a suppository base.
    Type: Grant
    Filed: December 5, 1979
    Date of Patent: May 19, 1981
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Yutaka Konno, Shigeo Kawamura