Patents by Inventor Takehiko Senba

Takehiko Senba 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: 8289441
    Abstract: According to the present invention, the imaging apparatus of the rolling shutter system first exposes/reads odd lines of an imaging sensor and then exposes/reads even lines. An image of one line is formed by sorting information of the lines, which is obtained by reading the information of the odd lines first and reading the information of the even lines later, in order of line positions. As a result, exposure start timing of adjacent odd/even lines is significantly shifted, and the exposure unevenness has a periodic stripe pattern when the exposure unevenness caused by flash emission of another person, etc. occurs on an image of one frame. Therefore, accurate detection of exposure unevenness caused by flash emission of another person in an imaging apparatus of a rolling shutter system can be achieved.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: October 16, 2012
    Assignee: FUJIFILM Corporation
    Inventors: Takayuki Matsuura, Takehiko Senba
  • Patent number: 8267602
    Abstract: A lens assembly in a digital still camera has a lens housing. First and second movable lenses/lens groups are contained in the lens housing, and supported in respectively first and second lens holders. A guide rod guides movement of the first and second lenses/lens groups in an optical axis direction with the lens holders. A shutter unit is disposed between the lens holders. A shutter actuator drives the shutter unit. A containing chamber in the lens housing contains the shutter actuator. A first motor is disposed between the guide rod and an inner surface of the lens housing and near to a first surface of the shutter unit, and moves the first lens holder. A second motor is disposed between the guide rod and the containing chamber and near to a second surface of the shutter unit, and moves the second lens holder.
    Type: Grant
    Filed: July 13, 2009
    Date of Patent: September 18, 2012
    Assignee: FUJIFILM Corporation
    Inventor: Takehiko Senba
  • Patent number: 8159559
    Abstract: Image light from an object is dispersed by a light dispersing device. When a plurality of image sensors are used for picking up images, an image in which a moving object is stopped is picked up with a high shutter speed, and at the same time, a motion-blurred image in which the moving object is picked up at a slow shutter speed. The obtained images are synthesized. The synthesized image has a slow synchronized flash effect. Accordingly, an image having a slow synchronized flash effect can be obtained without using a flash.
    Type: Grant
    Filed: March 10, 2009
    Date of Patent: April 17, 2012
    Assignee: Fujifilm Corporation
    Inventor: Takehiko Senba
  • Publication number: 20110001859
    Abstract: According to the present invention, the imaging apparatus of the rolling shutter system first exposes/reads odd lines of an imaging sensor and then exposes/reads even lines. An image of one line is formed by sorting information of the lines, which is obtained by reading the information of the odd lines first and reading the information of the even lines later, in order of line positions. As a result, exposure start timing of adjacent odd/even lines is significantly shifted, and the exposure unevenness has a periodic stripe pattern when the exposure unevenness caused by flash emission of another person, etc. occurs on an image of one frame. Therefore, accurate detection of exposure unevenness caused by flash emission of another person in an imaging apparatus of a rolling shutter system can be achieved.
    Type: Application
    Filed: July 1, 2010
    Publication date: January 6, 2011
    Applicant: FUJIFILM CORPORATION
    Inventors: Takayuki MATSUURA, Takehiko SENBA
  • Patent number: 7848638
    Abstract: A lens assembly in a digital still camera has a lens housing. First and second movable lenses/lens groups are contained in the lens housing, and supported in respectively first and second lens holders. A guide rod guides movement of the first and second lenses/lens groups in an optical axis direction with the lens holders. A shutter unit is disposed between the lens holders. A shutter actuator drives the shutter unit. A containing chamber in the lens housing contains the shutter actuator. A first motor is disposed between the guide rod and an inner surface of the lens housing and near to a first surface of the shutter unit, and moves the first lens holder. A second motor is disposed between the guide rod and the containing chamber and near to a second surface of the shutter unit, and moves the second lens holder.
    Type: Grant
    Filed: October 11, 2006
    Date of Patent: December 7, 2010
    Assignee: FUJIFLIM Corporation
    Inventor: Takehiko Senba
  • Patent number: 7817203
    Abstract: In a digital camera, a solid state imaging device is used to catch subject light so that an image signal is created. The digital camera contributes to effectively implementing further thinness in such a manner that a part of image taking lenses is saved to a suitable position at the time of the collapse. Both the rear elements lens and the focus lens are revolved between a position on the optical axis and a saving position coming into a hollow portion beside the CCD solid state imaging device, or between the position on the optical axis and a saving position in which the front elements lens, the rear elements lens and focus lens form a line substantially on a plane.
    Type: Grant
    Filed: July 29, 2008
    Date of Patent: October 19, 2010
    Assignees: FUJIFILM Corporation, Fujinon Corporation
    Inventors: Akio Omiya, Yoshihiro Ito, Takehiko Senba, Hiroshi Endo
  • Patent number: 7783182
    Abstract: A lens unit has a photographing lens, and is secured removably to a camera main body. An accessory conversion lens device is settable on the lens unit. The lens unit includes a reception unit for receiving accessory device data from the conversion lens device. A determiner checks propriety of the conversion lens device according to accessory device data received by the reception unit, and produces checking information. A transmission unit transmits the checking information to the main body. Specifically, the lens unit has an image pickup element. Also, the conversion lens device includes an RFID tag for storing the accessory device data. The reception unit includes an RFID tag reader for wireless reception. Also, the main body includes an LCD panel to display for outputting alarm information. A main body controller drives the LCD panel if the checking information represents lack of the propriety.
    Type: Grant
    Filed: September 11, 2009
    Date of Patent: August 24, 2010
    Assignee: FUJIFILM Corporation
    Inventors: Kentaro Tokiwa, Yoshihiro Ito, Takeshi Misawa, Takehiko Senba, Takashi Suzuki
  • Patent number: 7756410
    Abstract: A side face of an external flash device is provided with an illumination operation button, and side and lower faces thereof are provided with illumination light emitters. Each of the illumination light emitters has a built-in LED and turns on by pressing the illumination operation button. When an image is captured under a dark environment, a user can operate the operation ring, and operating dials and under the illumination.
    Type: Grant
    Filed: November 8, 2006
    Date of Patent: July 13, 2010
    Assignee: FUJIFILM Corporation
    Inventor: Takehiko Senba
  • Patent number: 7649550
    Abstract: A main frame adapter is detachably mounted, instead of a camera head, on a camera main frame from which the camera head is separated. The camera head comprises an image taking optical system and an imaging device. The camera main frame is adapted to receive an image signal from the camera head that is detachably mounted on the camera main frame. A head adapter that is detachably mounted, instead of the camera main frame, on the camera head separated from the camera main frame. Both the adapters have each the radio communication section.
    Type: Grant
    Filed: May 31, 2006
    Date of Patent: January 19, 2010
    Assignee: FUJIFILM Corporation
    Inventors: Eiji Ishiyama, Hiroshi Tanaka, Takehiko Senba, Keiichiro Takahashi, Kentaro Tokiwa
  • Publication number: 20100008660
    Abstract: A lens unit has a photographing lens, and is secured removably to a camera main body. An accessory conversion lens device is settable on the lens unit. The lens unit includes a reception unit for receiving accessory device data from the conversion lens device. A determiner checks propriety of the conversion lens device according to accessory device data received by the reception unit, and produces checking information. A transmission unit transmits the checking information to the main body. Specifically, the lens unit has an image pickup element. Also, the conversion lens device includes an RFID tag for storing the accessory device data. The reception unit includes an RFID tag reader for wireless reception. Also, the main body includes an LCD panel to display for outputting alarm information. A main body controller drives the LCD panel if the checking information represents lack of the propriety.
    Type: Application
    Filed: September 11, 2009
    Publication date: January 14, 2010
    Applicant: FUJIFILM CORPORATION
    Inventors: Kentaro TOKIWA, Yoshihiro ITO, Takeshi MISAWA, Takehiko SENBA, Takashi SUZUKI
  • Patent number: 7630626
    Abstract: A camera system includes a conventional single-lens reflex function. A camera head includes a finder support section which detachably supports an optical finder unit. When the optical finder unit is attached to the finder support section, the camera becomes a camera system having a single-lens reflex function. In the camera head, a half mirror is provided on the optical path of an image pickup lens. A subject reflected by the half mirror is formed on the side of a finder unit. A subject light passing through the half mirror is formed on an image pickup device. That is, the camera becomes a single-lens reflex camera in which the half mirror is used for a reflex plate.
    Type: Grant
    Filed: July 7, 2006
    Date of Patent: December 8, 2009
    Assignee: FUJIFILM Corporation
    Inventors: Takehiko Senba, Atsushi Misawa
  • Publication number: 20090273701
    Abstract: A lens assembly in a digital still camera has a lens housing. First and second movable lenses/lens groups are contained in the lens housing, and supported in respectively first and second lens holders. A guide rod guides movement of the first and second lenses/lens groups in an optical axis direction with the lens holders. A shutter unit is disposed between the lens holders. A shutter actuator drives the shutter unit. A containing chamber in the lens housing contains the shutter actuator. A first motor is disposed between the guide rod and an inner surface of the lens housing and near to a first surface of the shutter unit, and moves the first lens holder. A second motor is disposed between the guide rod and the containing chamber and near to a second surface of the shutter unit, and moves the second lens holder.
    Type: Application
    Filed: July 13, 2009
    Publication date: November 5, 2009
    Applicant: FUJIFILM CORPORATION
    Inventor: Takehiko SENBA
  • Publication number: 20090273700
    Abstract: A lens assembly in a digital still camera has a lens housing. First and second movable lenses/lens groups are contained in the lens housing, and supported in respectively first and second lens holders. A guide rod guides movement of the first and second lenses/lens groups in an optical axis direction with the lens holders. A shutter unit is disposed between the lens holders. A shutter actuator drives the shutter unit. A containing chamber in the lens housing contains the shutter actuator. A first motor is disposed between the guide rod and an inner surface of the lens housing and near to a first surface of the shutter unit, and moves the first lens holder. A second motor is disposed between the guide rod and the containing chamber and near to a second surface of the shutter unit, and moves the second lens holder.
    Type: Application
    Filed: July 13, 2009
    Publication date: November 5, 2009
    Applicant: FUJIFILM CORPORATION
    Inventor: Takehiko SENBA
  • Patent number: 7609953
    Abstract: A lens unit has a photographing lens, and is secured removably to a camera main body. An accessory conversion lens device is settable on the lens unit. The lens unit includes a reception unit for receiving accessory device data from the conversion lens device. A determiner checks propriety of the conversion lens device according to accessory device data received by the reception unit, and produces checking information. A transmission unit transmits the checking information to the main body. Specifically, the lens unit has an image pickup element. Also, the conversion lens device includes an RFID tag for storing the accessory device data. The reception unit includes an RFID tag reader for wireless reception. Also, the main body includes an LCD panel to display for outputting alarm information. A main body controller drives the LCD panel if the checking information represents lack of the propriety.
    Type: Grant
    Filed: June 22, 2006
    Date of Patent: October 27, 2009
    Assignee: FUJIFILM Corporation
    Inventors: Kentaro Tokiwa, Yoshihiro Ito, Takeshi Misawa, Takehiko Senba, Takashi Suzuki
  • Patent number: 7600932
    Abstract: A camera system is composed of a lens unit and a camera body. The lens unit has a built-in CCD. A magnet is embedded in a protrusion of the lens unit. A case of the camera body is made of a magnetic material. In virtue of this, it is possible to attach the lens unit to any position of the camera body on condition that functions of the camera body are not disturbed by the lens unit. Incidentally, a cable is utilized to perform data transmission and electric-power transfer between the lens unit and the camera body.
    Type: Grant
    Filed: April 14, 2006
    Date of Patent: October 13, 2009
    Assignee: FUJIFILM Corporation
    Inventors: Takehiko Senba, Atsushi Misawa
  • Publication number: 20090231465
    Abstract: Image light from an object is dispersed by a light dispersing device. When a plurality of image sensors are used for picking up images, an image in which a moving object is stopped is picked up with a high shutter speed, and at the same time, a motion-blurred image in which the moving object is picked up at a slow shutter speed. The obtained images are synthesized. The synthesized image has a slow synchronized flash effect. Accordingly, an image having a slow synchronized flash effect can be obtained without using a flash.
    Type: Application
    Filed: March 10, 2009
    Publication date: September 17, 2009
    Applicant: FUJIFILM Corporation
    Inventor: Takehiko SENBA
  • Patent number: 7590340
    Abstract: An image is divided into areas in accordance with degrees of focusing. As the divided areas, there are a focus area and a non-focus area. With respect to the non-focus area, the image thereof is processed so as to emphasize its blur. In contrast, with respect to the focus area, the image thereof is processed so as to emphasize its sharpness. The processed image is displayed on a monitor so that perspective is expressed like a single-lens reflex.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: September 15, 2009
    Assignee: FUJIFILM Corporation
    Inventor: Takehiko Senba
  • Patent number: 7582995
    Abstract: A stepping motor comprises first to third coil portions and first to second rotors. The first rotor has a cylindrical shape and a circumferential surface thereof is magnetically-polarized so as to alternately arrange south poles and north poles. The first rotor is disposed inside the first and second coil portions, and is rotated by magnetic fields generated at a time when the first and second coil portions are energized. The second rotor has a disk shape and a surface thereof is magnetically polarized so as to alternately arrange south poles and north poles. The second rotor is disposed such that edge areas of both surfaces thereof are interposed between the second and third coil portions. The second rotor is rotated by magnetic fields generated at a time when the second and third coil portions are energized.
    Type: Grant
    Filed: September 22, 2005
    Date of Patent: September 1, 2009
    Assignees: Fujinon Corporation, FUJIFILM Corporation
    Inventors: Yoshihiro Ito, Yoji Naka, Takehiko Senba, Haruo Onozuka, Mitsuo Manabe
  • Patent number: 7567290
    Abstract: A camera with a removable imaging lens unit is a small and reliable camera which can prevent electrostatic discharge from causing breakdown or malfunctions. Electrical contact points on a camera body are covered and protected by a mount barrier. When mounting the imaging lens unit on the camera body, a push head is placed in contact with the mount barrier and pushes the mount barrier. After the push head pushes down the mount barrier against the urging force of the spring, electrical contact points on the lens unit are connected with the electrical contact points on the camera body.
    Type: Grant
    Filed: March 29, 2005
    Date of Patent: July 28, 2009
    Assignee: FUJIFILM Corporation
    Inventors: Kentaro Tokiwa, Takehiko Senba, Satoshi Nakamura, Mikio Watanabe, Hiroshi Tanaka, Kazuhiro Tokuda, Kazukiyo Tamada
  • Patent number: 7566965
    Abstract: An image sensor module is composed of a base, a CCD image sensor, a glass plate, and a frame-shaped moisture permeable member. The base has a depressed chip chamber, in which the CCD image sensor is contained. Top and under surfaces of the moisture permeable member are provided with adhesive layers. The base and the glass plate are attached above and below the moisture permeable member through the adhesive layers, and the chip chamber is sealed. The moisture permeable member has the property to block liquid water while transmit water vapor, and releases the water vapor produced by the heat of the CCD image sensor from the inside to the outside of the chip chamber.
    Type: Grant
    Filed: June 9, 2006
    Date of Patent: July 28, 2009
    Assignee: FUJIFILM Corporation
    Inventors: Takehiko Senba, Katsuhiro Sasaki, Takeshi Misawa