Patents by Inventor Goro Kitajima

Goro Kitajima 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: 5628951
    Abstract: An armature, a method for producing the armature and a mold for molding the same are so configured that the coil pitch of each of phase coils is set to a value of 125% or less of the pole pitch, the gap between the respective phase coils of any one of layers is so disposed as to face the intenral space of each of the phase coils of the other layer being contact with that layer, and the registering face of the mold for molding the periphery of the armature is so formed as to be parallel with the axial direciton of the armature.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: May 13, 1997
    Assignee: Olympus Optical Company Limited
    Inventors: Goro Kitajima, Naohiro Hanaoka, Mitsuo Nasu
  • Patent number: 5460503
    Abstract: A mold for forming coreless armatures having an upper mold and a lower mold. The lower mold has a mold cavity for receiving a shaft capable of supporting windings of a coreless armature. An elastic ring plate is placed between the upper and lower molds and is adapted for being compressed therebetween. The elastic ring plate is further adapted to contact terminal ends of the windings as they extend outside of the mold cavity, and to seal said mold cavity with the terminal ends extending therefrom.
    Type: Grant
    Filed: January 19, 1994
    Date of Patent: October 24, 1995
    Assignee: Olympus Optical Company, Limited
    Inventors: Goro Kitajima, Naohiro Hanaoka, Mitsuo Nasu
  • Patent number: 5304884
    Abstract: An armature, a method for producing the armature and a mold for molding the same are so configured that the coil pitch of each of phase coils is set to a value of 125% or less of the pole pitch, the gap between the respective phase coils of any one of layers is so disposed as to face the intenral space of each of the phase coils of the other layer being contact with that layer, and the registering face of the mold for molding the periphery of the armature is so formed as to be parallel with the axial direction of the armature.
    Type: Grant
    Filed: July 1, 1992
    Date of Patent: April 19, 1994
    Assignee: Olympus Optical Company Limited
    Inventors: Goro Kitajima, Naohiro Hanaoka, Mitsuo Nasu
  • Patent number: 4589607
    Abstract: A magnetic recording tape driving apparatus comprises a motor, two pairs of reel shafts on which a pair of reel hubs of each of two cassette tapes are mounted, two capstans for the two cassette tapes, a head base plate supporting two magnetic heads and two pinch rollers each provided in a position corresponding to each pair of the reel shafts and movable between a first position, at which the magnetic heads and the pinch roller are all spaced apart from the magnetic tapes accommodated in the respective paired cassette tapes with the reel hubs thereof mounted on the two pairs of reel shafts, and a second position, at which the magnetic heads and the pinch rollers are all in contact with the magnetic tapes accommodated in the paired cassette tapes, and a gear train for selectively transmitting rotational power from the motor to the two capstans and the two pairs of reel shafts.
    Type: Grant
    Filed: January 18, 1985
    Date of Patent: May 20, 1986
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Minoru Kobayashi, Sinichi Saitou, Goro Kitajima
  • Patent number: 4577245
    Abstract: An operating lever device for a magnetic recording tape transport apparatus which uses a tape cassette and which sets a magnetic recording tape transport mode in response to an electrical signal from signal generator, comprises a first base plate, a second base plate parallel to the first base plate with a distance therebetween, a first operating lever disposed between the base plates to be movable along the base plates between a first position to stop the signal from the generator and a second position in which the generator is allowed to generate the signal, a second operating lever disposed between the base plates to be movable along the base plates between first and second positions and parallel to the moving direction of the first operating lever, an auxiliary operating lever disposed between the base plates to be movable along the base plates among first, second, third and fourth positions and perpendicularly to a direction of movement of the first and second operating levers, the auxiliary operating le
    Type: Grant
    Filed: February 21, 1985
    Date of Patent: March 18, 1986
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Shigeru Nemoto, Goro Kitajima, Sinichi Saitou, Hazime Osada
  • Patent number: 4525760
    Abstract: An operating lever device for a magnetic recording tape driving apparatus which comprises a first base plate, a second base plate disposed parallel to the first base plate, and an operating lever disposed between the base plates so as to be able to move along the base plates between first and second positions. A signal generator is caused to produce an electric signal when the operating lever is located in the second position, and when a tape cassette is set on the second base plate so that a magnetic recording tape is driven in accordance with the electric signal by a motor with the aid of a pair of reel shafts.
    Type: Grant
    Filed: May 25, 1982
    Date of Patent: June 25, 1985
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Shigeru Nemoto, Sinichi Saitou, Goro Kitajima, Hazime Osada
  • Patent number: 4523247
    Abstract: A signal detection operating lever device comprises a first base plate, a second base plate parallel to the first base plate, a first operating lever between the base plates movable between a first position in which signal generator stops generating signal to stop running of a recording tape and a second position in which the signal generator generates the signal to determine a recording tape transport mode in the tape recorder, a second operating lever having a magnetic head and disposed between the base plates to move the magnetic head between a first position in which the head is separated from a tape and a second position in which the head comes in contact with the tape, an accidental erasure preventive lever movable between a first position in which the second operating lever is prohibited to move from the first position to the second position thereof, and a second position in which the second operating lever is allowed to move from the first position to the second position thereof, a third operating lev
    Type: Grant
    Filed: July 9, 1984
    Date of Patent: June 11, 1985
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Shigeru Nemoto, Goro Kitajima, Sinichi Saitou, Hazime Osada
  • Patent number: 4351009
    Abstract: An apparatus for moving the pinch roller and the magnetic head of a tape recorder into their operative positions comprises a small size motor which supplies a drive to a pair of drive and driven members such as the combination of a pinion and a rack. The drive is transmitted via the pair of members to a movable member which carries the pinch roller and magnetic head, thus moving the pinch roller and the magnetic head to their operative positions.
    Type: Grant
    Filed: May 8, 1980
    Date of Patent: September 21, 1982
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Hajime Osada, Akiteru Kimura, Tokuo Shimizu, Goro Kitajima, Yoshio Tomizawa, Makoto Kondo, Kazuyasu Motoyama, Masaaki Daigaku