Patents by Inventor Tadayuki Kirigaya
Tadayuki Kirigaya 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).
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Patent number: 7181061Abstract: The digital camera being capable of recording stereoscopic first and second still images includes an imaging device that captures the first and second still images in this order, a display unit that displays a moving image captured by the imaging device to allow framing an image to be taken. The display unit superimpose a framing assisting pattern on the moving image to facilitate the framing of the image to be taken. A grid pattern may be utilized as the framing assisting pattern. After the first still image is captured, the display unit displays the first still image, with the framing assisting pattern superimposed thereon, besides the moving image after said first still image is captured.Type: GrantFiled: February 6, 2003Date of Patent: February 20, 2007Assignee: PENTAX CorporationInventors: Kiyoshi Kawano, Tadayuki Kirigaya, Hitoshi Uwabu, Toshio Masuda
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Publication number: 20030152263Abstract: The digital camera being capable of recording stereoscopic first and second still images includes an imaging device that captures the first and second still images in this order, a display unit that displays a moving image captured by the imaging device to allow framing an image to be taken. The display unit superimpose a framing assisting pattern on the moving image to facilitate the framing of the image to be taken. A grid pattern may be utilized as the framing assisting pattern. After the first still image is captured, the display unit displays the first still image, with the framing assisting pattern superimposed thereon, besides the moving image after said first still image is captured.Type: ApplicationFiled: February 6, 2003Publication date: August 14, 2003Applicant: PENTAX CorporationInventors: Kiyoshi Kawano, Tadayuki Kirigaya, Hitoshi Uwabu, Toshio Masuda
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Patent number: 6085046Abstract: A device for processing digital data receives digital data with a number of original digital data being reduced in a predetermined manner, discriminates whether a predetermined reference part of the received digital data meets a predetermined condition, sets a value corresponding to a remaining part of the received digital data, and modifies the value in a predetermined way if the reference part meets the predetermined condition.Type: GrantFiled: May 28, 1993Date of Patent: July 4, 2000Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventors: Tadayuki Kirigaya, Tetsuo Hosokawa, Satoshi Takami
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Patent number: 5812888Abstract: The present invention relates to an optical camera having a zoom function in which a focal length can be varied or the variation is actuated by a focal length changing member, and in particular to a camera in which a focal length is varied through a motor.The optical camera has a zoom lens operable by a rotatable zoom ring for changing the focal length thereof. An automatic focusing operation is effected by a control means when the focal length is changed so that an image of an object viewed through a viewfinder remains in focus. The zoom lens can include a motor and an in-exposure zoom control means can be provided for controlling zooming movement of the lens during an exposure operation.Type: GrantFiled: July 7, 1997Date of Patent: September 22, 1998Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventors: Tadayuki Kirigaya, Hiroyuki Takahashi, Masahiro Nakata, Hideaki Tsuji, Tetsuo Hosokawa
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Patent number: 5774746Abstract: A camera wherein exposure parameters fixed by a program line can be shifted along an exposure value EV line so that exposure parameters for an exposure operation are based on the shifted program line according to the preference of the camera user.The camera has setting means for temporarily changing these exposure parameters at a constant exposure value with respect to the values predetermined by a program line. A counting means counts the number of times that a shutter is released while the program line is shifted in one direction and control means stores the changed values for shifting the program line under certain conditions. In this way a learning function is provided to learn the aforementioned tendency of the user.Type: GrantFiled: March 31, 1997Date of Patent: June 30, 1998Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventors: Tadayuki Kirigaya, Hideaki Tsuji, Isamu Hirai, Yasuyuki Haneishi, Masato Yamamoto, Masaaki Haga, Masashi Furuno, Akio Takahashi, Koji Sato
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Patent number: 5761554Abstract: A dial rotatably mounted on a camera is provided with at least two kinds of information, corresponding to variable settings, functions, or modes. The dial may be rotated to set one of the kinds of information at a time, when an index mark points to symbols on the dial representative of individual settings or of a setting change mode to be performed in combination with other operating members provided to the camera. An LCD provided on the camera displays changes in the information in response to the rotation of the dial. The dial can have the kinds of information provided to the dial in adjacent angular ranges, or alternatively in concentric form, the kinds of information switchable by an additional member.Type: GrantFiled: May 17, 1997Date of Patent: June 2, 1998Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventors: Tadayuki Kirigaya, Hidefumi Kaneko, Masaaki Haga
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Patent number: 5754894Abstract: The present invention relates to an optical camera having a zoom function in which a focal length can be varied or the variation is actuated by a focal length changing member, and in particular to a camera in which a focal length is varied through a motor.The optical camera has a zoom lens operable by a rotatable zoom ring for changing the focal length thereof. An automatic focusing operation is effected by a control means when the focal length is changed so that an image of an object viewed through a viewfinder remains in focus. The zoom lens can include a motor and an in-exposure zoom control means can be provided for controlling zooming movement of the lens during an exposure operation.Type: GrantFiled: July 16, 1997Date of Patent: May 19, 1998Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventors: Tadayuki Kirigaya, Hiroyuki Takahashi, Masahiro Nakata, Hideaki Tsuji, Tetsuo Hosokawa
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Patent number: 5682558Abstract: A camera having a zoom lens. The camera includes a shutter, an aperture and program exposure mode control. The program exposure control includes one or more reference program characteristics representing combinations of shutter speed and aperture corresponding to one or more of a portrait mode, a landscape mode and a close up mode. Each reference program characteristics define a predetermined aperture in a first range from a low shutter speed to a hand-induced vibration limit and defines a different aperture in a second range beyond the hand-induced vibration limit. One of the reference program characteristics is selected, wherein the hand-induced vibration limit is defined in accordance with a focal length of said zoom lens.Type: GrantFiled: April 7, 1995Date of Patent: October 28, 1997Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventors: Tadayuki Kirigaya, Hideaki Tsuji, Isamu Hirai, Yasuyuki Haneishi, Masato Yamamoto, Masaaki Haga, Masashi Furuno, Akio Takahashi, Koji Sato
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Patent number: 5680647Abstract: The present invention relates to an optical camera having a zoom function in which a focal length can be varied or the variation is actuated by a focal length changing member, and in particular to a camera in which a focal length is varied through a motor.The optical camera has a zoom lens operable by a rotatable zoom ring for changing the focal length thereof. An automatic focusing operation is effected by a control means when the focal length is changed so that an image of an object viewed through a viewfinder remains in focus. The zoom lens can include a motor and an in-exposure zoom control means can be provided for controlling zooming movement of the lens during an exposure operation.Type: GrantFiled: June 5, 1995Date of Patent: October 21, 1997Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventors: Tadayuki Kirigaya, Hiroyuki Takahashi, Masahiro Nakata, Hideaki Tsuji, Tetsuo Hosokawa
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Patent number: 5654789Abstract: The present invention relates to an optical camera having a zoom function in which a focal length can be varied or the variation is actuated by a focal length changing member, and in particular to a camera in which a focal length is varied through a motor.The optical camera has a zoom lens operable by a rotatable zoom ring for changing the focal length thereof. An automatic focusing operation is effected by a control means when the focal length is changed so that an image of an object viewed through a viewfinder remains in focus. The zoom lens can include a motor and an in-exposure zoom control means can be provided for controlling zooming movement of the lens during an exposure operation.Type: GrantFiled: March 30, 1995Date of Patent: August 5, 1997Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventors: Tadayuki Kirigaya, Hiroyuki Takahashi, Masahiro Nakata, Hideaki Tsuji, Tetsuo Hosokawa
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Patent number: 5604554Abstract: An indicator within a finder of a single lens reflex camera is provided with a simple construction. The indicator may include a mirror for reflecting light of an object transmitted through a photographing lens to form an object image onto a focusing plate, an finder optical system for viewing an image of the object formed on the focusing plate, a hollow-type pentagonal mirror, and a photographing information projector for projecting a plurality of light rays onto the focusing plate to form a photographing information image. The hollow type pentagonal mirror may include a pair of roof reflecting surfaces and a third reflecting surface for reflecting light, reflected by the pair of roof reflecting surfaces, toward an eyepiece optical system. The photographing information projector may be mounted in the vicinity of the pair of roof reflecting surfaces.Type: GrantFiled: December 19, 1994Date of Patent: February 18, 1997Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventor: Tadayuki Kirigaya
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Patent number: 5488446Abstract: An indicating apparatus within a finder of a single lens reflex camera includes a mirror which reflects light of an object transmitted through a photographing lens to form an object image on a focusing plate, and a finder optical system through which an image of the object formed on the focusing plate is viewed. The indicating apparatus further includes a mirror box which supports the mirror, and a photographing information projector provided on the lower portion of the mirror box to project and indicate an image of the photographing information onto the focusing plate without interfering with the front end of the mirror.Type: GrantFiled: April 19, 1994Date of Patent: January 30, 1996Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventors: Tadayuki Kirigaya, Kaoru Imakyure, Hiroyasu Ozaki, Hiroshi Kurei
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Patent number: 5386260Abstract: A camera having an indicator provided in a finder optical system in which photographic information is indicated and which includes a sub-assembly having a light source and an information indicating plate. The camera includes an insertion groove in which the sub-assembly of the indicator is inserted, and an engaging device for engaging the indicator with the camera.Type: GrantFiled: September 7, 1993Date of Patent: January 31, 1995Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventor: Tadayuki Kirigaya
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Patent number: 5325147Abstract: An exposure control apparatus of a camera having a photometer, a film sensitivity detector, a calculator which calculates an exposure value, a diaphragm value and a shutter speed in accordance with a measurement by the photometer and the film sensitivity, an object distance detector, a strobe, a limit diaphragm value calculator that calculates a first limit diaphragm value, which varies with the film sensitivity, and a second limit diaphragm value, which varies with the object distance, when strobe light is emitted, and a minimum limit diaphragm value setting device which compares the first and second limit diaphragm values and selects the larger diaphragm value as the minimum limit diaphragm value to be used in the exposure control.Type: GrantFiled: July 15, 1993Date of Patent: June 28, 1994Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventors: Tadayuki Kirigaya, Isamu Hirai, Hideaki Tsuji, Nobuhiko Matsudo
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Patent number: 5227828Abstract: An automatic focusing device by which a focusing lens is operated in accordance with an object distance measured by a distance measuring unit. The distance of an object in a distance measuring zone provided in a view finder is determined to detect an abrupt change thereof. If the object distance is abruptly changed, the focusing lens is not operated to focus on a new object appearing in the measuring zone. Conversely, if the object distance is not abruptly changed, the focusing lens is operated to again focus on the object in the measuring zone.Type: GrantFiled: January 10, 1991Date of Patent: July 13, 1993Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventor: Tadayuki Kirigaya
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Patent number: 5223874Abstract: A pentagonal mirror unit of a single lens reflex camera including a hollow pentagonal mirror, a mirror sheet which is secured to a camera body and which has a recess in which the pentagonal mirror is fitted, a plurality of positioning projections which project downwardly from the lower end of the hollow pentagonal mirror, and a plurality of positioning holes provided on the bottom of the mirror sheet recess, so that the positioning projections can be fitted in the corresponding positioning holes.Type: GrantFiled: November 8, 1991Date of Patent: June 29, 1993Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventor: Tadayuki Kirigaya
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Patent number: 5184173Abstract: An apparatus for protecting the photographing data display portion of in a camera having a protecting cover which covers the photographing data display portion. The protective cover can close and open the photographing data displaying portion.Type: GrantFiled: October 21, 1991Date of Patent: February 2, 1993Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventor: Tadayuki Kirigaya
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Patent number: 5041854Abstract: A view finder of a single-lens reflex camera is provided with an upper cover, in which an image of an object transmitted through a photographing lens is visible. The viewfinder image is reflected by a first mirror formed on a focusing plate, is made incident upon roof reflecting surfaces perpendicular to each other, and is made incident on a third reflecting surface, so as to be made incident upon a magnifying glass. The roof reflecting surfaces are formed directly onto the inner surface of the upper cover of the single-lens reflex camera. The third reflecting surface is a member which is separate from the upper cover and is adhered to the upper cover.Type: GrantFiled: June 26, 1990Date of Patent: August 20, 1991Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventor: Tadayuki Kirigaya
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Patent number: 5028942Abstract: An apparatus for recording photographic data including a storing device for storing the photographic data of each frame of film, and a recording device for exposing the photographic data stored in the storing means on a predetermined frame of the film.Type: GrantFiled: October 13, 1989Date of Patent: July 2, 1991Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventor: Tadayuki Kirigaya
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Patent number: 4903062Abstract: An apparatus for protecting the photographing data display portion of in a camera having a protecting cover which covers the photographing display portion. The protective cover can close and open the photographing data displaying portion.Type: GrantFiled: March 23, 1988Date of Patent: February 20, 1990Assignee: Asahi Kogaku Kogyo K.K.Inventor: Tadayuki Kirigaya