Patents by Inventor Toshihiro Hamamura
Toshihiro Hamamura 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: 11647170Abstract: An image projection device includes a projector configured to project an image; and an operation unit configured to receive an operation performed by an operator. The projector is in a projecting state while the operation unit is receiving a pressing operation performed by the operator, and the projector is in a non-projecting state while the operation unit is not receiving a pressing operation performed by the operator.Type: GrantFiled: October 21, 2020Date of Patent: May 9, 2023Assignee: Ricoh Company, Ltd.Inventors: Tomoko Takahashi, Yuuji Wada, Yu Yoneda, Daisuke Tomita, Kunihiko Nishioka, Hideki Kosugi, Yasukazu Kitamura, Toshihiro Hamamura, Takaya Muraishi, Naomi Sugimoto, Yasunari Harada
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Publication number: 20210127097Abstract: An image projection device includes a projector configured to project an image; and an operation unit configured to receive an operation performed by an operator. The projector is in a projecting state while the operation unit is receiving a pressing operation performed by the operator, and the projector is in a non-projecting state while the operation unit is not receiving a pressing operation performed by the operator.Type: ApplicationFiled: October 21, 2020Publication date: April 29, 2021Applicant: Ricoh Company, Ltd.Inventors: Tomoko TAKAHASHI, Yuuji WADA, Yu YONEDA, Daisuke TOMITA, Kunihiko NISHIOKA, Hideki KOSUGI, Yasukazu KITAMURA, Toshihiro HAMAMURA, Takaya MURAISHI, Naomi SUGIMOTO, Yasunari HARADA
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Patent number: 9122129Abstract: An image pickup apparatus includes an image pickup unit to photograph a subject by using a photographing device, a control unit to determine an operation mode of the image pickup apparatus, and, when the operation mode of the image pickup apparatus is a manual focusing mode, the control unit selects a focus detecting method to be applied among a plurality of focus detecting methods according to a focus operation of a user, a determination unit to determine a focus state for the subject by using the selected focus detecting method, and a user interface unit to indicate the determined focus state.Type: GrantFiled: November 16, 2012Date of Patent: September 1, 2015Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventor: Toshihiro Hamamura
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Patent number: 8760567Abstract: Photographing apparatus and method to reduce auto-focus time are disclosed. A photographing apparatus is provided that includes two imaging optical systems; an imaging device that converts images of subjects formed by the imaging optical systems into respective image signals; a subject distance calculation unit that calculates subject distances between the imaging device and the subject based on two images generated by the imaging device; and an in-focus position detection unit that detects an in-focus position based on contrast evaluation values of the image signals obtained for a plurality of focusing positions, performs preparatory focusing driving by moving the focusing positions close to the in-focus position based on the calculated subject distances, and scans the focusing positions from the position close to the in-focus position to the in-focus position.Type: GrantFiled: December 21, 2011Date of Patent: June 24, 2014Assignee: Samsung Electronics Co., Ltd.Inventor: Toshihiro Hamamura
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Patent number: 8243187Abstract: A photographing apparatus including an in-focus position detector for detecting an in-focus position of a focusing lens to focus an image of a subject on an image pickup surface, a driving controller for controlling the driving of the focusing lens, a reflective member that opens and closes on a path of a light that is irradiated onto the image pickup surface, and an optical measuring unit measuring a brightness of the subject image that is reflected by the reflective member in a closed state when a preliminary light emission operation is performed with respect to the subject before performing a main exposure operation. In the preliminary light emission, the driving controller drives the focusing lens to a position nearer the subject or a position nearer the image pickup surface, rather than to the in-focus position of the focusing lens detected by the in-focus position detector.Type: GrantFiled: April 9, 2008Date of Patent: August 14, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Toshiyuki Tanaka, Toshihiro Hamamura
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Patent number: 8229292Abstract: An auto focus (AF) adjusting apparatus and a camera system of a lens replaceable camera are disclosed. AF is performed by correcting a location error of a focus lens due to a difference between a frequency band for performing AF detection and a frequency band for determining an improved location of an image surface of an imaging lens, and/or a target region for detecting a focal point.Type: GrantFiled: December 27, 2010Date of Patent: July 24, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Masataka Hamada, Kazuhiko Sugimoto, Toshihiro Hamamura, Shuji Yoneyama
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Patent number: 8208802Abstract: Provided are a focusing position determining apparatus, an imaging apparatus, and a focusing position determining method, the method including setting an aperture to a first aperture value; driving a focus lens through a first range of positions as a first drive; during the first drive, obtaining images periodically, and calculating a first sampling of contrast values from the obtained images; calculating a first focus position from the first sampling of contrast values; setting the aperture to a second aperture value; driving a focus lens through a second range of positions as a second drive, the second range of positions being based on the first focus position; during the second drive, obtaining images periodically, and calculating a second sampling of contrast values from the obtained images; calculating a focusing position from the second sampling of contrast values; and driving the focus lens to the calculated focusing position.Type: GrantFiled: August 27, 2009Date of Patent: June 26, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Yuki Endo, Toshiyuki Tanaka, Toshihiro Hamamura, Tsuyoshi Moriya, Naoki Takafuji
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Publication number: 20120154670Abstract: Photographing apparatus and method to reduce auto-focus time are disclosed. A photographing apparatus is provided that includes two imaging optical systems; an imaging device that converts images of subjects formed by the imaging optical systems into respective image signals; a subject distance calculation unit that calculates subject distances between the imaging device and the subject based on two images generated by the imaging device; and an in-focus position detection unit that detects an in-focus position based on contrast evaluation values of the image signals obtained for a plurality of focusing positions, performs preparatory focusing driving by moving the focusing positions close to the in-focus position based on the calculated subject distances, and scans the focusing positions from the position close to the in-focus position to the in-focus position.Type: ApplicationFiled: December 21, 2011Publication date: June 21, 2012Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventor: Toshihiro Hamamura
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Patent number: 7990458Abstract: A digital camera has an image-capturing device, an image processor, and a display. The image-capturing device creates a cleaning image which is used for pinpointing dust particles attached to an image sensor. The image processor creates an inverted cleaning image so that the top and bottom of a subject image provided on the image sensor match the top and bottom of a subject image included in the cleaning image. The display displays the inverted cleaning image.Type: GrantFiled: December 10, 2008Date of Patent: August 2, 2011Assignee: Hoya CorporationInventors: Tomohiko Kanzaki, Toshihiro Hamamura
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Publication number: 20110164865Abstract: An auto focus (AF) adjusting apparatus and a camera system of a lens replaceable camera are disclosed. AF is performed by correcting a location error of a focus lens due to a difference between a frequency band for performing AF detection and a frequency band for determining an improved location of an image surface of an imaging lens, and/or a target region for detecting a focal point.Type: ApplicationFiled: December 27, 2010Publication date: July 7, 2011Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: MASATAKA HAMADA, KAZUHIKO SUGIMOTO, TOSHIHIRO HAMAMURA, SHUJI YONEYAMA
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Patent number: 7961250Abstract: A photographing apparatus comprises an imaging sensor, a controller, and an exposure-mode-selecting device. The controller performs a photometric operation on a photographing subject and obtains a luminance value of the photographing subject based on the photometric operation. The exposure-mode-selecting device is used for selecting an exposure mode of the photographing apparatus that has a sensitivity priority AE mode. The photographing operation is performed with a sensitivity of the imaging sensor that is set by a user and a shutter speed and an aperture value that are calculated based on the luminance value and the sensitivity, while the photographing apparatus is in the sensitivity priority AE mode.Type: GrantFiled: September 12, 2007Date of Patent: June 14, 2011Assignee: Hoya CorporationInventors: Isamu Hirai, Tadahisa Ohkura, Toshihiro Hamamura
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Patent number: 7889246Abstract: A photographing apparatus comprises an operation unit, a controller, and a display unit. The operation unit has a range setting unit that is used for setting an upper limited value of a range of a sensitivity of an imaging sensor and a lower limited value of the range in a first sensitivity setting state where the sensitivity is calculated on the basis of a luminance value obtained in a photometric operation. The controller sets the upper limited value and the lower limited value corresponding to an operation of the range setting unit. The display unit displays an illustration of the upper limited value and the lower limited value that are set by the controller.Type: GrantFiled: September 12, 2007Date of Patent: February 15, 2011Assignee: Hoya CorporationInventors: Shigenori Fujio, Toshihiro Hamamura, Takeshi Matsushita
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Patent number: 7856174Abstract: An apparatus and method for image pickup capable of reducing noise in the images to reduce the effect of shaking due to, for example, hand movement. The image pickup apparatus and method can employ an exposure photographing unit for photographing at least one exposure image at predetermined time intervals using time-division exposure in a light exposure state, a dark frame photographing unit for photographing at least one dark frame at predetermined time intervals using time-division exposure in a dark state, a subtracting processor for subtracting the dark frames from the exposure images to reduce noise in the exposure images, and an image combiner for combining the plurality of reduced noise exposure images.Type: GrantFiled: March 29, 2007Date of Patent: December 21, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Toshiyuki Tanaka, Toshihiro Hamamura
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Patent number: 7852401Abstract: An apparatus and method that can maintain the number of photographed images obtained per second (frame rate) while ensuring sufficient exposure of a subject. The photographing apparatus and method can include an exposure portion for repeatedly performing an exposure at intervals of a predetermined unit exposure time, an image data storing portion temporarily storing unit image data generated by the exposure of the exposure portion, and an image combiner reading and combining a group of unit image data corresponding to a predetermined exposure time from the image data storing portion in synchronization with a photographing start timing of a continuous photographing period that is set in advance, to generate a combined image.Type: GrantFiled: March 26, 2007Date of Patent: December 14, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Toshihiro Hamamura, Toshiyuki Tanaka
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Patent number: 7839436Abstract: A photographing apparatus comprises an imaging sensor and a display unit. The imaging sensor obtains image data. The display unit indicates a first white balance setting picture that is used for setting a white balance gain in a white balance adjustment of the image data and a second white balance setting picture that is used for setting a fine adjustment of the white balance gain. The second white balance setting picture has an adjustment state indication area that illustrates a state where the fine adjustment is tuned and an adjustment quantity indication area which has a cursor illustrating a quantity of the fine adjustment and a two-dimensional coordinate plane illustrating a range of movement of the cursor. Only the second white balance setting picture has the adjustment state indication area.Type: GrantFiled: September 12, 2007Date of Patent: November 23, 2010Assignee: Hoya CorporationInventor: Toshihiro Hamamura
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Patent number: 7764318Abstract: A photographing apparatus comprises an imaging sensor, a memory, and a display unit. The imaging sensor obtains image data. The memory stores the image data. The display unit indicates a still picture based on the image data and a white balance setting picture on the still picture. The white balance setting picture is used for setting a white balance gain in a white balance adjustment.Type: GrantFiled: September 12, 2007Date of Patent: July 27, 2010Assignee: Hoya CorporationInventors: Teppei Okamoto, Shigenori Fujio, Satoru Horita, Toshihiro Hamamura
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Patent number: D955470Type: GrantFiled: September 10, 2020Date of Patent: June 21, 2022Assignee: RICOH COMPANY, LTD.Inventors: Masaaki Kabumoto, Masateru Kohno, Yoshihisa Minagawa, Masahiro Kurita, Toshihiro Hamamura, Kanako Hirasawa, Shoichi Hibi
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Patent number: D956137Type: GrantFiled: September 10, 2020Date of Patent: June 28, 2022Assignee: RICOH COMPANY, LTD.Inventors: Masaaki Kabumoto, Masateru Kohno, Yoshihisa Minagawa, Masahiro Kurita, Toshihiro Hamamura, Kanako Hirasawa, Shoichi Hibi
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Patent number: D963735Type: GrantFiled: January 7, 2021Date of Patent: September 13, 2022Assignee: RICOH COMPANY, LTD.Inventor: Toshihiro Hamamura
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Patent number: D972008Type: GrantFiled: September 10, 2020Date of Patent: December 6, 2022Assignee: RICOH COMPANY, LTD.Inventors: Masaaki Kabumoto, Masateru Kohno, Yoshihisa Minagawa, Masahiro Kurita, Toshihiro Hamamura, Kanako Hirasawa, Shoichi Hibi