Patents by Inventor Yoshito Tanaka

Yoshito Tanaka 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: 5389986
    Abstract: A camera system on which a remote control device enables photographing with a camera body directed to a user of the remote control device, is controlled by a program of a microcomputer for controlling provided in the camera body. In this program, while the lens direction of the camera body is being shifted by the remote control device, a release signal sent from the remote control device is disregarded. As a result, even if the user pushes a release button by mistake to transmit a release signal, the microcomputer does not accept a remote control release signal while the lens is moving by a remote control drive signal, thereby preventing exposure.
    Type: Grant
    Filed: January 21, 1994
    Date of Patent: February 14, 1995
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Sadafusa Tsuji, Yoshito Tanaka, Yoshihiro Tanaka, Hiroyuki Okada
  • Patent number: 5335072
    Abstract: A photographic system includes a photographing device for photographing subjects to generate respective image data of the subjects, the photographing device having an image information production device for producing image information concerning the photography for each of the subjects, and a storage device for storing the produced image information, and a reproduction device for reproducing the image data, the reproduction device having a retrieval condition input device for inputting a retrieval condition, a retrieval device responsive to the retrieval condition input device for retrieving image data having a connection with the input retrieval condition by inference, and a reproducing device for reproducing the retrieved image data.
    Type: Grant
    Filed: March 12, 1993
    Date of Patent: August 2, 1994
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Yoshito Tanaka, Dai Shintani, Hirokazu Naruto, Katsuyuki Nanba, Nobuyuki Taniguchi, Hiroshi Ishibe, Yoshihiro Tanaka
  • Patent number: 5282854
    Abstract: a fluorine-containing block copolymer comprising at least one soft segment which comprises chlorotrifluoroethylene and vinylidene fluoride and at least one hard segment which comprises a fluorine-containing crystalline polymer, which copolymer has good flexibility and transparency and useful as a material for an artificial lens.
    Type: Grant
    Filed: October 13, 1992
    Date of Patent: February 1, 1994
    Assignee: Daikin Industries Ltd.
    Inventors: Toshiharu Yagi, Nobuhiko Tsuda, Tsuyoshi Noguchi, Kohsaku Sakaguchi, Yoshito Tanaka, Masayoshi Tatemoto
  • Patent number: 5274410
    Abstract: An imaging apparatus of an electronic camera according to the present invention has a lens barrier arranged on an object side of a photographing lens; an imaging device capable of changing electric charge storage time; a lens barrier state-detecting means for outputting a signal indicating an opening state of the lens barrier after detecting the opening state of the lens barrier; a release switch for starting a photographing operation; an imaging device control means for starting electric charge storage of the device when the signal of the opening state of the lens barrier is outputted from the detecting means and for outputting a charge termination signal when the charge is terminated; and a lens barrier opening and closing driving means for driving the lens barrier to open on the basis of a turning-on signal of the release switch and for driving the lens barrier to close on the basis of the charge termination signal outputted from the control means.
    Type: Grant
    Filed: October 21, 1991
    Date of Patent: December 28, 1993
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Atsushi Kuwada, Hiroshi Kiten, Takeo Hoda, Toshio Yamaki, Dai Shintani, Yoshihiro Tanaka, Yoshito Tanaka
  • Patent number: 5169902
    Abstract: A vibration-proof damping polymer material characterized in that the material is prepared from a polymer substance obtained by dissolving an amorphous fluorine-containing polymer in an acrylic monomer and polymerizing the monomer with or without permitting the resulting polymer to form an interpenetrating polymer network, and a vibration-proof damping polymer material characterized in that the material is prepared from a blend of (a) and (b), (a) being an amorphous fluorine-containing polymer or crystalline polymer containing vinylidene fluoride, and (b) being an acrylic polymer.
    Type: Grant
    Filed: March 30, 1990
    Date of Patent: December 8, 1992
    Assignee: Daikin Industries Ltd.
    Inventors: Toshiharu Yagi, Yoshito Tanaka, Tsuyoshi Noguchi, Kohsaku Sakaguchi, Nobuhiko Tsuda
  • Patent number: 5166844
    Abstract: A disc drive apparatus including a cartridge holder for detachably holding a disc cartridge, which is provided with a shutter slidingly moving in one direction from a closed position to open windows formed in an upper surface and a lower surface of a cartridge case, has a pair of elongated opening/closing arms rotatably mounted on the cartridge holder for moving the shutter in an opening direction by an inserting force of the disc cartridge into the cartridge holder.
    Type: Grant
    Filed: July 5, 1990
    Date of Patent: November 24, 1992
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Yoshito Tanaka, Toshinori Sugiyama, Yoshitane Tsuburaya
  • Patent number: 5155581
    Abstract: An electronic still video camera includes photography means having video signal production means for producing a video signal with respect to an object, color balance adjustment means for fixedly adjusting the color balance of the video signal of said video signal production means to a color temperature for daylight, judge means for judging as to whether an object is able to be photographed without flash light, and flash firing means for firing flash light when said judge means judges that flash light is necesary. The electronic still video camera can simplify the construction of color balance circuit.
    Type: Grant
    Filed: May 5, 1989
    Date of Patent: October 13, 1992
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Yoshito Tanaka, Yoshihiro Tanaka, Nobuyuki Taniguchi, Takeo Hoda, Shinji Tominaga, Motonobu Matsuda
  • Patent number: 5099262
    Abstract: A camera has a function of recording sounds as well as recording images. In this camera, in a self mode in which photographing is executed using a self timer, sounds are recorded during counting of the self timer and in a usual photographing mode in which no self timer is used, sounds are recorded after completion of the photographing. These two modes are changed over automatically according to a selection of one mode. When a user fails to record sounds in the sound recording operation in this camera, the sounds in correspondence with related recorded images can be recorded again from the beginning by operating a reset means. Further, the recording time can be elongated by operating a means for changing over the recording mode during the sound recording operation.
    Type: Grant
    Filed: August 4, 1989
    Date of Patent: March 24, 1992
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Yoshito Tanaka, Hiroyuki Okada, Yoshihiro Tanaka, Nobuyuki Taniguchi, Shinji Tominaga
  • Patent number: 5097340
    Abstract: An exposure control device for a still video camera having an imaging device provided with shutter function, a flash device for emitting light, and a light metering device for obtaining brightness information of an object for exposure control or a distance metering device for obtaining information of an object distance, is adapted for actuating the flash to emit during the accumulation time of signal charges in the imaging device, sweeping unnecessary charges out from a transfer section of the imaging device when the flash emitting is completed, and transferring the accumulated signal charges to the transfer section, whereby smear factor of the image signal can be eliminated. The flash is emitted when the accumulation of signal charges starts and the flash stops emitting when the proper exposure is attained. The emitting time is determined by the object distance, thereby the flash emission contributes to a proper exposure.
    Type: Grant
    Filed: December 28, 1989
    Date of Patent: March 17, 1992
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Hideki Tanabe, Yoshito Tanaka, Yoshihiro Tanaka, Nobuyuki Taniquchi
  • Patent number: 5081175
    Abstract: The present invention provides a coating composition which comprises (a) a polymer containing vinylidene fluoride, (b) an acrylic polymer and (c) acetylacetone, as essential components, and an article which is coated or impregnated with the coating composition.
    Type: Grant
    Filed: December 28, 1990
    Date of Patent: January 14, 1992
    Assignee: Daikin Industries, Ltd.
    Inventors: Toshiharu Yagi, Tsuyoshi Noguchi, Yoshito Tanaka, Kohsaku Sakaguchi, Nobuhiko Tsuda
  • Patent number: 5040167
    Abstract: A disk cartridge accommodating a disk-type recording medium and adapted to be used on a recording/read-out apparatus having at least an upper head and lower head for accessing to the upper and lower surfaces of the disk, the disk cartridge comprising an upper case member and a lower case member which are assembled together to form a case defining therein an internal space for accommodating the disk, head windows formed in the upper and lower case members opposing each other so as to allow the heads to make access to the disk therethrough, the head windows extending in a predetermined radial direction of the disk, a recess formed by recessing the surface of each case member at a region extending between one longitudinal end of the head window and the edge of the case member closest to the longitudinal end of the head window, and a shutter capable of sliding on the case in the widthwise direction of the head windows so as to open/close the recesses and the head windows, the head window formed in the upper case
    Type: Grant
    Filed: April 4, 1989
    Date of Patent: August 13, 1991
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Yoshito Tanaka, Takeo Sonobe
  • Patent number: 4972265
    Abstract: In an electronic camera having a photographic objective lens, a blocking member is disposed in the path of a propagation of a bundle of light rays from an object. The blocking member is adapted to prevent the bundle of rays from impinging on an image pickup device except during a photographic operation. The blocking member is retractable from the path to permit the bundle of rays to be incident on the image pickup device. A photoelectric conversion circuit includes photoelectric conversion elements arranged in the form of a matrix. A charge control circuit controls the amount of charges to be stored in the photoelectric conversion circuit while the blocking member is completely retracted from the path. An image processing circuit produces an image signal based on the amount of stored charges.
    Type: Grant
    Filed: May 5, 1989
    Date of Patent: November 20, 1990
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Yoshito Tanaka, Yoshihiro Tanaka, Nobuyuki Taniguchi, Takeo Hoda, Shinji Tominaga, Motonobu Matsuda
  • Patent number: 4875121
    Abstract: A magnetic head supporting device for supporting at least one magnetic head in contact with a flexible magnetic disk so as to record and reproduce signals in and from the flexible magnetic disk. The magnetic head supporting device comprises a gimbal spring having a central portion to which the magnetic head is secured at one side thereof; and a pivot which contacts on the opposite side of the central portion of the gimbal spring so as to support the center of the magnetic head through the intermediary of the gimbal spring.
    Type: Grant
    Filed: May 8, 1987
    Date of Patent: October 17, 1989
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Yoshito Tanaka, Nobuhiro Umebayashi
  • Patent number: 4870523
    Abstract: A magnetic head apparatus used for a movable magnetic medium, comprising a magnetic head core in which a recording/reproducing core and an erasing core are respectively disposed on the entrance side of the movable medium and on the exit side of the movable medium, both of the cores being formed as an integrated magnetic core. The head cap of the recording/reproducing core is placed within a range defined between a position spaced about 0% of the longitudinal length of the integrated magnetic core apart from the center of the magnetic core toward the entrance side of the movable medium and another position spaced about 20% of the longitudinal length of the integrated magnetic core apart from the center toward the exit side of the movable medium.
    Type: Grant
    Filed: July 9, 1987
    Date of Patent: September 26, 1989
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Osamu Inagoya, Hideo Fujiwara, Yoshito Tanaka, Takeshi Ohnuki
  • Patent number: 4810295
    Abstract: The present invention provides an impression composition of the alginate type which comprises (a) an alginate, (b) calcium sulfate and/or lead silicate, and (c) a filler as its main components and which is characterized in that the alginate component comprises in combination an alginate having a distribution of molecular weights in a lower range and an alginate having a distribution of molecular weights in a higher range.
    Type: Grant
    Filed: October 23, 1987
    Date of Patent: March 7, 1989
    Assignee: Daikin Industries, Ltd.
    Inventors: Toshiharu Yagi, Yoshihide Higashihata, Hiromichi Sakuma, Yoshito Tanaka, Jouji Saito, Minako Inomata, Torahiko Nagano, Takashi Nishioka, Sumiko Yubara
  • Patent number: 4796129
    Abstract: A magnetic head device with head cores connected to end surfaces of sliders, opposing each other on both sides of a magnetic disc, wherein one head core and slider combination is mounted on a gimbal spring, and a pivot member for pressing the magnetic disc, the pivot having plural pressing members aligned in the radial direction of the magnetic disc, the pivot being formed so that the pressing force can be applied generally uniformly to every part of the upper core and lower core.
    Type: Grant
    Filed: January 7, 1987
    Date of Patent: January 3, 1989
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Nobuhiro Umebayashi, Yoshito Tanaka
  • Patent number: 4633444
    Abstract: In a switch circuit, there are provided a signal input stage comprising an array of switches paired with pilot lamps; a storage circuit comprising I.sup.2 L elements for storing a signal derived from the signal input stage; a circuit for causing that one of the pilot lamps be lit which is associated with a predetermined one of the switches; electronic switches for controlling a signal source in response to the signal derived from the signal input stage; an auxiliary current source circuit for holding the memory at the storage circuit when the main power supply is interrupted; and a circuit adapted, when the capacity of the auxiliary current source circuit is decreased and when the main power is supplied, to turn on a predetermined one of the switches while turning off the remaining ones of the switches, thereby setting the storage circuit to a predetermined initial condition.
    Type: Grant
    Filed: September 30, 1983
    Date of Patent: December 30, 1986
    Assignee: Toko, Inc.
    Inventors: Koichi Nakayama, Yoshito Tanaka
  • Patent number: 4587440
    Abstract: In a waveform shaping circuit, there are provided a first and a second monostable multivibrator comprising I.sup.2 L elements. The first and second monostable multivibrators include a first and a second capacitor, respectively. When trigger pulse is simultaneously applied to the first and second monostable multivibrators, the first capacitor of the first monostable multivibrator is charged, while the second capacitor of the second monostable multivibrator is prevented from being charged, by means of a signal resulting from the charging at the first capacitor. Upon completion of the charging at the first capacitor, the second capacitor begins to be charged. In this way, an output signal is generated which corresponds, in respect of waveform and pulse width, to a combination of the outputs of the first and second monostable multivibrators.
    Type: Grant
    Filed: July 1, 1983
    Date of Patent: May 6, 1986
    Assignee: Toko, Inc.
    Inventors: Koichi Nakayama, Yoshito Tanaka
  • Patent number: 4581541
    Abstract: In a switch device comprising a plurality of analog switches for switchingly selecting a desired signal out of a plurality of input signals, means is provided for preventing pop noise from occurring when the switching operation is performed.
    Type: Grant
    Filed: November 9, 1984
    Date of Patent: April 8, 1986
    Assignee: Toko, Inc.
    Inventors: Koichi Nakayama, Yoshito Tanaka
  • Patent number: 4569708
    Abstract: A method of fitting a generally cylindrical corrosion protective and/or aesthetic sheath on a cable, which method includes the steps of fitting a sheath unit on one end of a cable; shifting the position of the fitted sheath unit toward the other end of the cable; fitting a fresh sheath unit similarly on the cable in continuation from the preceding sheath unit; and repeating the fitting of a fresh sheath unit and the shift of the preceding sheath until the cable is covered with the sheath units substantially over the entire length thereof.
    Type: Grant
    Filed: July 16, 1984
    Date of Patent: February 11, 1986
    Assignee: Shinko Kosen Kogyo Kabushiki Kaisha
    Inventors: Yoshito Tanaka, Toshio Haraguchi