Patents by Inventor Yoshiaki Hata

Yoshiaki Hata 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: 4814804
    Abstract: A camera having, in addition to a real focal length photographing mode, a pseudo focal length photographing mode, namely, a photographing mode in which a part of a photographed image frame of a film is printed at an enlarging ratio different from an ordinary enlarging ratio to obtain a print as if it had been photographed using a telephoto lens. It is provided with means for recording photographing mode information on a frame of a film when the pseudo focal length photographing mode is selected, and a control means which brings a flash light emitting device into an operable condition in response to the selection of the pseudo focal length photographing mode and which actuates the flash light emitting device in synchronism with release of the shutter. An optical axis of a photographing lens and a flash emission tube are spaced from each other, and the pseudo focal length photographing mode can be selected only when a negative film is loaded in the camera.
    Type: Grant
    Filed: May 25, 1988
    Date of Patent: March 21, 1989
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Nobuyuki Taniguchi, Takeo Hoda, Yoshiaki Hata, Manabu Inoue, Yoshinobu Kudo, Hiroshi Ueda
  • Patent number: 4812871
    Abstract: The photographic camera which prints a code signal representing printing information on a film is capable of selecting a real focal length photographing mode for printing a normal range of a frame a, plurality of pseudo focal length photographing mode each being different in pseudo focal length from the other, and a close-up photographing mode. Exposure condition is limited in accordance with the selected mode. Upon selection of the photographing modes, a code signal indicative of said selection is produced and printed between frames on the film surface. The film after photographing with this camera is subjected to printing by means of a printer which reads the code signal printed on the film surface, determines an exposure value in accordance with the code signal and determines an enlargement ratio.
    Type: Grant
    Filed: June 16, 1988
    Date of Patent: March 14, 1989
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Nobuyuki Taniguchi, Yoshiaki Hata, Yoshinobu Kudo, Manabu Inoue, Takeo Hoda, Hiroshi Ueda
  • Patent number: 4806961
    Abstract: A photographic camera having a photographic lens system freely settable to various focal lengths, an openable and closable lens cover disposed in front of the photographic lens system, an opening and closing mechanism for the lens cover, a motor for providing kinetic energy for the focal length changeover operations of the photographic lens system and also for the opening and closing operations of the lens cover, and a drivable cylinder capable of transmitting the kinetic energy from the motor to the photographic lens system and to the opening and closing mechanism in the form of a mechanical displacement.
    Type: Grant
    Filed: May 18, 1988
    Date of Patent: February 21, 1989
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Masatoshi Kamitani, Manabu Inoue, Motohiro Nakanishi, Hiroshi Ootsuka, Yoshinobu Kudo, Yoshiaki Hata
  • Patent number: 4780735
    Abstract: The photographic camera which prints a code signal representing printing information on a film is capable of selecting a real focal length photographing mode for printing a normal range of a frame, a plurality of pseudo focal length photographing mode each being different in pseaudo focal length from the other, and a close-up photographing mode. Exposure condition is limited in accordance with the selected mode. Upon selection of the photographing modes, a code signal indicative of said selection is produced and printed between frames on the film surface. The film after photographing with this camera is subjected to printing by means of a printer which reads the code signal printed on the film surface, determines an exposure value in accordance with the code signal and determines an enlargement ratio.
    Type: Grant
    Filed: August 12, 1986
    Date of Patent: October 25, 1988
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Nobuyuki Taniguchi, Yoshiaki Hata, Yoshinobu Kudo, Manabu Inoue, Takeo Hoda, Hiroshi Ueda
  • Patent number: 4774536
    Abstract: A photographic camera wherein photographing mode selecting circuit is provided to select a real focal length photographing mode and a pseudo focal length photographing mode for making a print of a field narrower than the field defined by the real focal length photographing mode and output means outputs a pseudo focal length signal corresponding to the pseudo focal length of a photographic lens when pseudo focal length photographing mode is selected.
    Type: Grant
    Filed: January 8, 1987
    Date of Patent: September 27, 1988
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Manabu Inoue, Nobuyuki Taniguchi, Yoshiaki Hata, Takeo Hoda, Yoshinobu Kudo, Hiroshi Ueda
  • Patent number: 4771303
    Abstract: The present invention provides a bifocal camera capable of changing focal length of a photographic lens system and having lens drive means operable by a motor to switch the photographic lens system between a first focal length state wherein a main lens component is located at a rear position and a second focal length state wherein the main lens component is located at a front position and an auxiliary lens component is located at an operative position. This camera comprises a device for automatically stopping the motor when shifting of the main lens component is interrupted by force, and a device for restricting the shifting of the main lens component between the front position and the rear position. The auxiliary lens component is moved and a lens barrier is opened and closed in interlocked relationship with the shifting of the main lens component.
    Type: Grant
    Filed: June 5, 1987
    Date of Patent: September 13, 1988
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Toshiaki Matsumoto, Takeo Hoda, Yoshiaki Hata, Masatoshi Kamitani, Norihiro Inoue
  • Patent number: 4768047
    Abstract: A photographic camera having a real focal length photographing mode and two kinds of a first and a second pseudo focal length photographing modes. In the first pseudo focal length photographing mode, the photographic camera is capable of specifying a scope for printing narrower than the scope in the real focal length photographing mode.
    Type: Grant
    Filed: December 3, 1986
    Date of Patent: August 30, 1988
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Nobuyuki Taniguchi, Takeo Hoda, Yoshiaki Hata, Manabu Inoue, Yoshinobu Kudo, Hiroshi Ueda
  • Patent number: 4760413
    Abstract: A camera having, in addition to a real focal length photographing mode, a pseudo focal length photographing mode, namely, a photographing mode in which a part of a photographed image frame of a film is printed at an enlarging ratio different from an ordinary enlarging ratio to obtain a print as if it had been photographed using a telephoto lens. It is provided with means for recording photographing mode information on a frame of a film when the pseudo focal length photographing mode is selected, and a control means which brings a flash light emitting device into an operable condition in response to the selection of the pseudo focal length photographing mode and which actuates the flash light emitting device in synchronism with release of the shutter. An optical axis of a photographing lens and a flash emission tube are spaced from each other, and the pseudo focal length photographing mode can be selected only when a negative film is loaded in the camera.
    Type: Grant
    Filed: November 4, 1987
    Date of Patent: July 26, 1988
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Nobuyuki Taniguchi, Takeo Hoda, Yoshiaki Hata, Manabu Inoue, Yoshinobu Kudo, Hiroshi Ueda
  • Patent number: 4749264
    Abstract: The present invention provides a front conversion lens system attachable in front of an objective lens of a camera in which either of a real focal length photographing mode and a pseudo focal length photographing mode in which, an area, in an image recorded in a frame, smaller than a normal printing area printed when selecting the real focal length photographing mode is printed, is selectable, the lens system satisfying the following condition:0.25 (f/ DF) (L-L')/L 7.0wherein; f represents a focal length of a photographing lens system including the front conversion lens system and the objective lens; DF represents an axial thickness of the front conversion lens system; L represents a length of a diagonal line of an image plane to be printed when the real focal length photographing mode is selected; and L' represents a length of a diagonal line of an image plane to be printed when the pseudo focal length photographing mode is selected.
    Type: Grant
    Filed: December 16, 1986
    Date of Patent: June 7, 1988
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Nobuyuki Taniguchi, Yoshiaki Hata, Takeo Hoda, Manabu Inoue, Yoshinobu Kudo, Hiroshi Ueda
  • Patent number: 4749263
    Abstract: A rear conversion lens system which is removably inserted behind an objective lens of a pseudo telephoto camera upon photographing in a trimming mode is inserted for acquiring a print on which the image of the object is printed of greater size.The rear conversion lens system fulfills the following condition: ##EQU1## wherein: f represents the focal length of the whole optical system when the rear conversion system is inserted,.SIGMA.DR represents the axial distance of the rear conversion lens system,L represents the length of the diagonal line of image format to be printed on a printing paper in case of normal photographing,L' represents the length of the diagonal line of image format to be printed on a printing paper in case of photographing in a trimming mode.
    Type: Grant
    Filed: January 8, 1987
    Date of Patent: June 7, 1988
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Nobuyuki Taniguchi, Yoshiaki Hata, Takeo Hoda, Manabu Inoue, Yoshinobu Kudo, Hiroshi Ueda
  • Patent number: 4733263
    Abstract: A camera having, in addition to a real focal length photographing mode, a pseudo focal length photographing mode, namely, a photographing mode in which a part of a photographed image frame of a film is printed at an enlarging ratio different from an ordinary enlarging ratio to obtain a print as if it had been photographed using a telephoto lens. It is provided with means for recording photographing mode information on a frame of a film when the pseudo focal length photographing mode is selected, and a control means which brings a flash light emitting device into an operable condition in response to the selection of the pseudo focal length photographing mode and which actuates the flash light emitting device in synchronism with release of the shutter. An optical axis of a photographing lens and a flash emission tube are spaced from each other, and the pseudo focal length photographing mode can be selected only when a negative film is loaded in the camera.
    Type: Grant
    Filed: November 18, 1986
    Date of Patent: March 22, 1988
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Nobuyuki Taniguchi, Takeo Hoda, Yoshiaki Hata, Manabu Inoue, Yoshinobu Kudo, Hiroshi Ueda
  • Patent number: 4728978
    Abstract: A photographic camera records photographic information and/or development information in an IC card which includes a semiconductor memory capable of reading-out/writing in, a circuit having a microcomputer and adapted for communication with peripherals and a data communication terminal for the communication. This photographic camera has an attaching portion for attaching the IC card, a data exchange terminal disposed between a back lid and a camera body, a microcomputer-incorporated communication device for the data exchange with the IC card and a camera control device for carrying out various operations based on the data input from the IC card. Through the data exchange between the microcomputer of the camera and the microcomputer of the IC card, the photographic information and/or the development information corresponding to an exposed film is recorded in the IC card. Those data and other information are accessible at any time and any place.
    Type: Grant
    Filed: March 4, 1987
    Date of Patent: March 1, 1988
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Manabu Inoue, Nobuyuki Taniguchi, Yoshiaki Hata, Takeo Hoda, Yoshinobu Kudo, Hiroshi Ueda
  • Patent number: 4728973
    Abstract: A camera on which a front converter can be mounted and wherein a picture image of a high quality over an entire picture plane can be obtained and an aperture of a front converter can be reduced while a photographing magnification of the camera can be increased without the necessity of much expense. The camera comprises trimming designating means for designating a trimming condition in which an area smaller than a normal photograph area is printed. Upon operation of the trimming designating means, encoding means operates to encode a trimming signal on a film so as to designate the trimming condition upon printing from the film. When a front converter is mounted on the camera, judging means detects this, and controlling means thereupon operates the trimming designating means to designate the trimming condition.
    Type: Grant
    Filed: June 2, 1987
    Date of Patent: March 1, 1988
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Nobuyuki Taniguchi, Takeo Hoda, Yoshiaki Hata, Yoshinobu Kudo, Manabu Inoue, Hiroshi Ueda
  • Patent number: 4614417
    Abstract: A camera constructed compact, wherein one position signal outputting device is used in an auto-focusing device and an auto-exposure control device. The camera comprises a displacement mechanism, a focusing control mechanism, an exposure control mechanism, a position signal outputting device, a distance measuring device, a focusing stop mechanism, a light measuring apparatus and a focusing stop mechanism.
    Type: Grant
    Filed: December 27, 1984
    Date of Patent: September 30, 1986
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Yoshiaki Hata, Toshiaki Matsumoto, Shinji Tominaga, Koji Yamamoto, Maki Yamashita, Yoshihiro Tanaka