Patents by Inventor Takeshi Ichikawa

Takeshi Ichikawa 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: 8953076
    Abstract: A photoelectric conversion device comprises a p-type region, an n-type buried layer formed under the p-type region, an element isolation region, and a channel stop region which covers at least a lower portion of the element isolation region, wherein the p-type region and the buried layer form a photodiode, and a diffusion coefficient of a dominant impurity of the channel stop region is smaller than a diffusion coefficient of a dominant impurity of the buried layer.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: February 10, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hajime Ikeda, Yoshihisa Kabaya, Takanori Watanabe, Takeshi Ichikawa, Mineo Shimotsusa
  • Patent number: 8948571
    Abstract: A receiver allows controlling a device to be controlled such as a display device based on reference timing acquired from reception data without delay and with low power consumption, and includes: a communication device receiving data incoming intermittently; a first control circuit analyzing the data received by the communication device to identify the presence of a predetermined reference timing signal pattern in the data; and a timer for counting a clock from an initial value, generating a control signal for the device to be controlled according to a resulting count value, and if the count value reaches a predetermined interval value, resuming counting the clock at the initial value. The timer changes the initial value to reduce a count of the clock between the initial value and the interval value if the first control circuit identifies the predetermined reference timing signal pattern to be present.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: February 3, 2015
    Assignee: LAPIS Semiconductor Co., Ltd.
    Inventor: Takeshi Ichikawa
  • Publication number: 20150031162
    Abstract: A photoelectric conversion device includes a first semiconductor substrate including a photoelectric conversion unit for generating a signal charge in accordance with an incident light, and a second semiconductor substrate including a signal processing unit for processing an electrical signal on the basis of the signal charge generated in the photoelectric conversion unit. The signal processing unit is situated in an orthogonal projection area from the photoelectric conversion unit to the second semiconductor substrate. A multilayer film including a plurality of insulator layers is provided between the first semiconductor substrate and the second semiconductor substrate. The thickness of the second semiconductor substrate is smaller than 500 micrometers. The thickness of the second semiconductor substrate is greater than the distance from the second semiconductor substrate and a light-receiving surface of the first semiconductor substrate.
    Type: Application
    Filed: October 14, 2014
    Publication date: January 29, 2015
    Inventors: Mineo Shimotsusa, Takeshi Ichikawa, Yasuhiro Sekine
  • Publication number: 20150001782
    Abstract: Provided is a post-processing device including a transport path that includes a first transport path which is bent in one direction and a second transport path which is continuous from the first transport path and is bent in the other direction, and that is directed vertically downward while being bent, a first processing unit that is disposed in the first transport path, a second processing unit that is disposed in the second transport path, and a third transport path that is continuous from the second transport path and that is directed vertically upward.
    Type: Application
    Filed: March 4, 2014
    Publication date: January 1, 2015
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Akira SAKUMA, Takeshi ICHIKAWA
  • Publication number: 20150006942
    Abstract: A verification control part has the same write information data piece written into each of a plurality of memories according to a write instruction and then reads out information data piece from the plurality of memories. At this time, a coincidence determining part performs first verification to determine whether respective read-out information data pieces read out from the memories coincide with each other and outputs a verification result signal to the outside, and simultaneously the verification control part outputs one of the read-out information data pieces as an information data piece for second verification, which performs coincidence determination with the write information data piece, to the outside.
    Type: Application
    Filed: June 30, 2014
    Publication date: January 1, 2015
    Applicant: LAPIS Semiconductor Co., Ltd.
    Inventor: Takeshi ICHIKAWA
  • Patent number: 8912578
    Abstract: The present invention relates to a solid-state image pickup device. The device includes a first substrate including a photoelectric conversion element and a transfer gate electrode configured to transfer charge from the photoelectric conversion element, a second substrate having a peripheral circuit portion including a circuit configured to read a signal based charge generated in the photoelectric conversion element, the first and second substrates being laminated. The device further includes a multilayer interconnect structure, disposed on the first substrate, including an aluminum interconnect and a multilayer interconnect structure, disposed on the second substrate, including a copper interconnect.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: December 16, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Nobuyuki Endo, Tetsuya Itano, Kazuo Yamazaki, Kyouhei Watanabe, Takeshi Ichikawa
  • Patent number: 8890331
    Abstract: A photoelectric conversion device includes a first semiconductor substrate including a photoelectric conversion unit for generating a signal charge in accordance with an incident light, and a second semiconductor substrate including a signal processing unit for processing an electrical signal on the basis of the signal charge generated in the photoelectric conversion unit. The signal processing unit is situated in an orthogonal projection area from the photoelectric conversion unit to the second semiconductor substrate. A multilayer film including a plurality of insulator layers is provided between the first semiconductor substrate and the second semiconductor substrate. The thickness of the second semiconductor substrate is smaller than 500 micrometers. The thickness of the second semiconductor substrate is greater than the distance from the second semiconductor substrate and a light-receiving surface of the first semiconductor substrate.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: November 18, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Mineo Shimotsusa, Takeshi Ichikawa, Yasuhiro Sekine
  • Patent number: 8878115
    Abstract: A light condensing member focuses light, which is incident upon a first area of the light condensing member corresponding to an opening portion of an insulation film, in an upper portion region of a light path member arranged within the opening portion, the insulation film having an upper face extending from the opening portion, and the light path member having a lower face in a region corresponding to a light receiving face of an photoelectric conversion portion.
    Type: Grant
    Filed: February 1, 2012
    Date of Patent: November 4, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Mineo Shimotsusa, Taro Kato, Yasuhiro Sekine, Mahito Shinohara, Takeshi Ichikawa, Genzo Momma
  • Publication number: 20140306309
    Abstract: A photoelectric conversion apparatus includes a semiconductor substrate having a photoelectric conversion portion. An insulator is provided on the semiconductor substrate. The insulator has a hole corresponding to the photoelectric conversion portion. A waveguide member is provided in the hole. An in-layer lens is provided on a side of the waveguide member farther from the semiconductor substrate. A first intermediate member is provided between the waveguide member and the in-layer lens. The first intermediate member has a lower refractive index than the in-layer lens.
    Type: Application
    Filed: June 24, 2014
    Publication date: October 16, 2014
    Inventors: Taro Kato, Mineo Shimotsusa, Hiroaki Sano, Takeshi Ichikawa, Yasuhiro Sekine, Mahito Shinohara, Genzo Momma
  • Patent number: 8818533
    Abstract: An information processing device includes: a receiving unit that receives information to be processed that includes valid data, that has processing content information and identification information, and start information; and a control unit that controls an apparatus such that an initial processing is executed on the basis of the processing content information, and, if the identification information is included in the information to be processed, controls the apparatus such that processing that follows the initial processing is executed, and, if the identification information is not included in the information to be processed, controls the apparatus such that the processing that follows the initial processing is not executed.
    Type: Grant
    Filed: August 3, 2011
    Date of Patent: August 26, 2014
    Assignee: Lapis Semiconductor Co., Ltd.
    Inventor: Takeshi Ichikawa
  • Patent number: 8817144
    Abstract: A photoelectric conversion apparatus includes a semiconductor substrate having a photoelectric conversion portion. An insulator is provided on the semiconductor substrate. The insulator has a hole corresponding to the photoelectric conversion portion. A waveguide member is provided in the hole. An in-layer lens is provided on a side of the waveguide member farther from the semiconductor substrate. A first intermediate member is provided between the waveguide member and the in-layer lens. The first intermediate member has a lower refractive index than the in-layer lens.
    Type: Grant
    Filed: February 2, 2012
    Date of Patent: August 26, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Taro Kato, Mineo Shimotsusa, Hiroaki Sano, Takeshi Ichikawa, Yasuhiro Sekine, Mahito Shinohara, Genzo Momma
  • Patent number: 8779544
    Abstract: A photoelectric conversion apparatus comprises multiple photoelectric conversion portions (51) disposed in a semiconductor substrate (5B) wherein each photoelectric conversion portion (51) includes: a P-type charge accumulating area (107) containing a first impurity; and an N-type well portion (102) that, along with the P-type charge accumulating area, configures a photodiode, and each well portion has: an N-type first semiconductor region (102a) containing arsenic at a first density; an N-type second semiconductor region (102b,102C) disposed below the first semiconductor region and containing arsenic at a second density that is lower than the first density; and an N-type third semiconductor region (102d) disposed below the second semiconductor region and containing a second impurity at a third density that is higher than the first density.
    Type: Grant
    Filed: January 26, 2010
    Date of Patent: July 15, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yuichiro Yamashita, Takanori Watanabe, Mineo Shimotsusa, Takeshi Ichikawa
  • Publication number: 20140168492
    Abstract: A photoelectric conversion device comprises a p-type region, an n-type buried layer formed under the p-type region, an element isolation region, and a channel stop region which covers at least a lower portion of the element isolation region, wherein the p-type region and the buried layer form a photodiode, and a diffusion coefficient of a dominant impurity of the channel stop region is smaller than a diffusion coefficient of a dominant impurity of the buried layer.
    Type: Application
    Filed: December 20, 2013
    Publication date: June 19, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Hajime Ikeda, Yoshihisa Kabaya, Takanori Watanabe, Takeshi Ichikawa, Mineo Shimotsusa
  • Patent number: 8723285
    Abstract: A photoelectric conversion device comprises an n-type surface region, a p-type region which is formed under the surface region, and an n-type buried layer which is formed under the p-type region, wherein the surface region, the p-type region, and the buried layer form a buried photodiode, and a diffusion coefficient of a dominant impurity of the surface region is smaller than a diffusion coefficient of a dominant impurity of the buried layer.
    Type: Grant
    Filed: January 8, 2010
    Date of Patent: May 13, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tadashi Sawayama, Katsunori Hirota, Takanori Watanabe, Takeshi Ichikawa
  • Patent number: 8670059
    Abstract: A photoelectric conversion device comprises a p-type region, an n-type buried layer formed under the p-type region, an element isolation region, and a channel stop region which covers at least a lower portion of the element isolation region, wherein the p-type region and the buried layer form a photodiode, and a diffusion coefficient of a dominant impurity of the channel stop region is smaller than a diffusion coefficient of a dominant impurity of the buried layer.
    Type: Grant
    Filed: January 20, 2010
    Date of Patent: March 11, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hajime Ikeda, Yoshihisa Kabaya, Takanori Watanabe, Takeshi Ichikawa, Mineo Shimotsusa
  • Patent number: 8625010
    Abstract: A solid-state imaging apparatus including a plurality of pixels each including: a first holding portion for holding signal carriers from a photoelectric conversion portion; an amplifying portion for amplifying and reading a signal based on the signal carriers generated in the photoelectric conversion portion; and a carrier discharging control portion for discharging charge carriers in the photoelectric conversion portion to an OFD region, and having a carrier path between the photoelectric conversion portion and the first carrier holding portion, in which the solid-state imaging apparatus further includes a second carrier holding portion electrically connected with the first carrier portion in parallel through a first transfer unit, when viewed from an output node of the photoelectric conversion portion, thereby smoothing an movie imaging without causing discontinuous frame while suppressing generation of noise mixing into the charge carrier holding portion.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: January 7, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yuichiro Yamashita, Masahiro Kobayashi, Takanori Watanabe, Shinsuke Kojima, Takeshi Ichikawa, Yusuke Onuki
  • Publication number: 20140003558
    Abstract: A diversity control method and a wireless communication apparatus which are capable of saving time and electricity consumed for diversity control if an approximation pattern approximating to a synchronization pattern appears in a reception signal during acquisition of the reception strength of every antenna by selecting any one of a plurality of antennas as a receiving antenna in every selection cycle, detection operation of a synchronization signal is continued regardless of the above described selection cycle.
    Type: Application
    Filed: June 21, 2013
    Publication date: January 2, 2014
    Inventor: TAKESHI ICHIKAWA
  • Patent number: 8546902
    Abstract: The present invention, in a photoelectric conversion device in which a pixel including a photoelectric conversion device for converting a light into a signal charge and a peripheral circuit including a circuit for processing the signal charge outside a pixel region in which the pixel are disposed on the same substrate, comprising: a first semiconductor region of a first conductivity type for forming the photoelectric region, the first semiconductor region being formed in a second semiconductor region of a second conductivity type; and a third semiconductor region of the first conductivity type and a fourth semiconductor region of the second conductivity type for forming the peripheral circuit, the third and fourth semiconductor regions being formed in the second semiconductor region; wherein in that the impurity concentration of the first semiconductor region is higher than the impurity concentration of the third semiconductor region.
    Type: Grant
    Filed: May 13, 2010
    Date of Patent: October 1, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Seiichi Tamura, Hiroshi Yuzurihara, Takeshi Ichikawa, Ryuichi Mishima
  • Publication number: 20130248953
    Abstract: An apparatus according to the present invention in which a first substrate including a photoelectric conversion element and a gate electrode of a transistor, and a second substrate including a peripheral circuit portion are placed upon each other. The first substrate does not include a high-melting-metal compound layer, and the second substrate includes a high-melting-metal compound layer.
    Type: Application
    Filed: May 20, 2013
    Publication date: September 26, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Nobuyuki Endo, Tetsuya Itano, Kazuo Yamazaki, Kyouhei Watanabe, Takeshi Ichikawa
  • Patent number: 8538336
    Abstract: A radio LSI device includes an interfering wave detecting circuit that receives an RSSI signal for a current transmit/receive channel. The interfering wave detecting circuit includes a field intensity determiner that determines whether or not the value of the RSSI signal is greater than a predetermined threshold value. The interfering wave detecting circuit also includes a duration counter that counts the duration of an interfering wave whose RSSI value is greater than the predetermined threshold value. The interfering wave detecting circuit also includes a duration comparator that, if the duration exceeds a duration comparative value, generates an interrupt signal. The radio LSI device changes the setting of the current transmit/receive channel in response to the interrupt signal.
    Type: Grant
    Filed: November 17, 2009
    Date of Patent: September 17, 2013
    Assignee: Oki Semiconductor Co., Ltd.
    Inventor: Takeshi Ichikawa