Patents by Inventor Kenji Ishii

Kenji Ishii 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: 11398063
    Abstract: According to one embodiment, a medical image diagnostic apparatus includes a storage memory, processing circuitry, and a display. The storage memory stores data of a plurality of FFR distribution maps constituting a time series regarding a coronary artery, and data of a plurality of morphological images corresponding to the time series. The processing circuitry converts the plurality of FFR distribution maps into a plurality of corresponding color maps, respectively. The display displays a plurality of superposed images obtained by superposing the plurality of color maps and the plurality of morphological images respectively corresponding in phase to the plurality of color maps. The display restricts display targets for the plurality of color maps based on the plurality of FFR distribution maps or the plurality of morphological images.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: July 26, 2022
    Assignee: Canon Medical Systems Corporation
    Inventors: Hideaki Ishii, Satoshi Wakai, Kazumasa Arakita, Takuma Igarashi, Yasuko Fujisawa, Shigeo Kaminaga, Kenji Hirohata, Junichiro Ooga
  • Publication number: 20220100055
    Abstract: A shoe device of an accessory that secures necessary functions and mechanical strength when the accessory is used with attaching to an electronic apparatus and that improves convenience during use when the accessory is used without attaching to an electronic apparatus. An engagement member is attachable to and detachable from an accessory shoe device of an electronic apparatus by sliding in a first direction. A holding member holds the engagement member. An attachment part is provided in the engagement member or the holding member and allows attachment of a member different from the accessory shoe device. A connection member has connection terminals arranged in a second direction that intersects perpendicularly with the first direction and is arranged in a front of the holding member in the first direction. The attachment part is provided behind the connection terminals in the first direction.
    Type: Application
    Filed: September 27, 2021
    Publication date: March 31, 2022
    Inventors: Yoshinobu Okano, Kenji Ishii, Keita Hirayama
  • Publication number: 20220094371
    Abstract: A decoder that is a decoding apparatus includes an error-correction decoder that executes error correction decoding processing of iteratively performing decoding processing with a window size and the number of decoding iterations indicated by decoding parameters, on received data converted into a spatially coupled low-density parity-check code, and a decoding parameter control unit that updates the decoding parameters on the basis of a decoding result obtained by the iteratively executed decoding processing.
    Type: Application
    Filed: December 7, 2021
    Publication date: March 24, 2022
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kenji ISHII, Hideo YOSHIDA
  • Publication number: 20220082910
    Abstract: An electronic apparatus detachably attached to an accessory via an accessory shoe includes contacts electrically connectable to the accessory via the accessory shoe and arranged in a row. The contacts include a first signal contact used to transmit a data signal in a communication between the electronic apparatus and accessory, a second signal contact used to transmit a clock signal in synchronization with the data signal in the communication, and a third signal contact used to receive a communication request signal from the accessory. The first and second signal contacts are arranged next to each other. The third signal contact is disposed on an opposite side of the second signal contact with respect to the first signal contact. A transmission of the data signal via the first signal contact is executed in response to a reception of the communication request signal via the third signal contact.
    Type: Application
    Filed: November 23, 2021
    Publication date: March 17, 2022
    Inventors: Yuhei Hattori, Hiromichi Sakamoto, Kei Tohyama, Takayuki Shu, Hiromi Hayasaki, Kouji Ikeda, Kenji Ishii, Yoshinobu Okano
  • Publication number: 20220082905
    Abstract: An electronic apparatus includes a plurality of contacts electrically connectable to an accessory and arranged in a first direction orthogonal to a direction in which the accessory is attached. The contacts include an attachment detection contact to detect an attachment of the accessory to the electronic apparatus, and a communication request contact for a communication request from the accessory to the electronic apparatus. The attachment detection and communication request contacts are disposed between a contact closest one end and a contact closest to another end in the first direction. The attachment detection contact is disposed between the communication request contact and the contact closest to the one end. In the first direction, a distance between the attachment detection contact and the communication request contact is shorter than that between the communication request contact and the contact closest to the other end.
    Type: Application
    Filed: November 23, 2021
    Publication date: March 17, 2022
    Inventors: Hiromichi Sakamoto, Kei Tohyama, Takayuki Shu, Hiromi Hayasaki, Kouji Ikeda, Yuhei Hattori, Kenji Ishii, Yoshinobu Okano
  • Publication number: 20220082911
    Abstract: A shoe apparatus includes an engagement portion with an accessory shoe apparatus included in an electronic apparatus, a plurality of connection terminals, where a first direction is an attachment direction to the accessory shoe apparatus, which are arranged in a second direction orthogonal to the first direction, and located on a front side of the engagement portion in the attachment direction, and a connector that includes protrusion portions that protrude in a third direction orthogonal to the first and second directions on both outer sides of the plurality of connection terminals in the second direction. The protrusion portion includes a slope portion on a side that does not face the plurality of connection terminals such that a width in the second direction at a position of a tip in the third direction is narrower than a width at a position away from the tip.
    Type: Application
    Filed: November 23, 2021
    Publication date: March 17, 2022
    Inventors: Yoshinobu Okano, Kenji Ishii
  • Publication number: 20210405513
    Abstract: An accessory shoe apparatus on an electronic apparatus includes an engagement member and a communication. A shoe apparatus on an accessory apparatus is detachably attachable to the accessory shoe apparatus. The engagement member engages with the shoe apparatus and including an opening portion that faces the engaged shoe apparatus. The communication element performs wireless communication with the shoe apparatus via an inside of the opening portion.
    Type: Application
    Filed: June 16, 2021
    Publication date: December 30, 2021
    Inventors: Kenji Ishii, Natsumi Sekiguchi, Yoshinobu Okano
  • Publication number: 20210384921
    Abstract: Provided is an optical transmission device including: a symbol demapping unit; a likelihood generation circuit configured to generate likelihoods relating to the reception signal; and an error correction decoding unit configured to execute soft decision decoding. The likelihood generation circuit includes: a first one-dimensional-modulation lookup table configured to input the signal of the I-axis component as an argument to output a first likelihood; a second one-dimensional-modulation lookup table configured to input the signal of the Q-axis component as an argument to output a second likelihood; and a two-dimensional-modulation lookup table configured to input, as an argument, the signal being the concatenation of the signal of the I-axis component and the signal of the Q-axis component, to generate a third likelihood. The error correction decoding unit is configured to execute the soft decision decoding based on the first likelihood, the second likelihood, and the third likelihood.
    Type: Application
    Filed: August 18, 2021
    Publication date: December 9, 2021
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yoshiaki KONISHI, Kenji ISHII, Hideo YOSHIDA, Takashi SUGIHARA, Tsuyoshi YOSHIDA
  • Publication number: 20210328602
    Abstract: Provided is an error correction decoding device including an inner code iterative decoding circuit, a parameter generation circuit, and a first control circuit. The first control circuit is configured to: receive, as parameters, a threshold and a maximum iteration count which are generated by the parameter generation circuit; and compare, when an iteration count does not reach the maximum iteration count, a non-zero-value count sequentially output from the inner code iterative decoding circuit and the threshold set for each iteration count, and stop an iterative operation by the inner code iterative decoding circuit when a result of the comparison satisfies a stopping condition set in advance.
    Type: Application
    Filed: July 1, 2021
    Publication date: October 21, 2021
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hideo YOSHIDA, Yoshiaki KONISHI, Kenji ISHII, Takashi SUGIHARA
  • Patent number: 11095309
    Abstract: Provided is an optical transmission/reception device including an error correction decoding unit (36) for decoding a received sequence encoded with an LDPC code, in which the error correction decoding unit (36) is configured to perform decoding processing using a parity check matrix (70) of a spatially-coupled LDPC code, which includes a plurality of parity check sub-matrices (71) combined with each other, in which the decoding processing is windowed decoding processing that uses a window (80) over one or more parity check sub-matrices (71), and in which a window size of the window (80) and a decoding iteration count due to throughput and requested correction performance are variable and input from a control circuit (12) connected to the error correction decoding device (36).
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: August 17, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kenji Ishii, Kazuo Kubo, Kenya Sugihara, Hideo Yoshida
  • Patent number: 11054773
    Abstract: A heater includes a base layer, a heat generator mounted on the base layer, and a slide layer mounted on the base layer. A sliding face of a counterpart slides over the slide layer. The slide layer is made of a material containing fluorine and includes a slide face that contacts the sliding face of the counterpart. The slide face of the slide layer has a surface roughness that is greater than a surface roughness of the sliding face of the counterpart.
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: July 6, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Yuusuke Furuichi, Kenji Ishii, Kenichi Hasegawa, Takashi Fujita, Tomoya Adachi, Yukimichi Someya, Daisuke Inoue, Masahiro Samei, Takayuki Seki
  • Publication number: 20210180377
    Abstract: A structure body having a resin molded body which can suppress deterioration of external appearance due to meander of the folded line formed in the hinge portion even when the resin constituting the resin molded body contains an inorganic fiber. The structure body has a resin molded body and the resin molded body includes: a first main body portion and a second main body portion; and a hinge portion; wherein the first main body portion and the second main body portion are connected at the hinge portion with each other so as to be rotatable with respect to each other; the hinge portion comprises a first thin portion, a second thin portion, and a thick portion.
    Type: Application
    Filed: January 29, 2019
    Publication date: June 17, 2021
    Applicant: KYORAKU CO., LTD.
    Inventors: Kenji ISHII, Kazuo WAKI, Sho NAKAJIMA
  • Patent number: 10974436
    Abstract: The first aspect of the present invention provides a foamed structure, comprising: a first foamed body extending in a first direction; a second foamed body extending in the first direction and facing the first foamed body with a gap interposed therebetween; and a reinforcement disposed in the gap between the first foamed body and the second foamed body, the reinforcement having an elongated shape, wherein the first foamed body has a portion overlapping with the second foamed body in the first direction view.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: April 13, 2021
    Assignee: KYORAKU CO., LTD.
    Inventors: Takafumi Funato, Sho Nakajima, Kazuhiko Saeki, Kenji Ishii, Ryuichi Ishida, Ryosuke Oki, Tatsuya Fukuda, Yuki Harasawa
  • Patent number: 10935911
    Abstract: A fixing device includes an endless belt rotatable in a predetermined direction of rotation and a nip formation assembly disposed opposite an inner circumferential surface of the endless belt. An opposed rotary body is pressed against the nip formation assembly via the endless belt to form a fixing nip between the endless belt and the opposed rotary body through which a recording medium bearing a toner image is conveyed. A belt holder contacts and supports each lateral end of the endless belt in an axial direction thereof. The belt holder is isolated from the opposed rotary body with a first interval interposed therebetween in the axial direction of the endless belt.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: March 2, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Teppei Kawata, Masahiko Satoh, Masaaki Yoshikawa, Kenji Ishii, Hiroshi Yoshinaga, Tadashi Ogawa, Takahiro Imada, Hiromasa Takagi, Kazuya Saito, Naoki Iwaya, Kensuke Yamaji, Takamasa Hase, Toshihiko Shimokawa, Shuutaroh Yuasa, Takuya Seshita, Takeshi Uchitani, Arinobu Yoshiura, Hajime Gotoh, Akira Suzuki
  • Patent number: 10917116
    Abstract: Provided is an error correction device including an encoding circuit configured to encode a plurality of error correction code sequences, in which the encoding circuit includes a plurality of encoding circuits connected in parallel, and is configured to execute encoding processing for the plurality of error correction code sequences through use of all the plurality of encoding circuits by adjusting an output bus width and a frequency of an operation clock with respect to a difference in transmission rate for any payloads input in one or more systems.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: February 9, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hideo Yoshida, Kazuo Kubo, Kenji Ishii, Kenya Sugihara, Takashi Sugihara
  • Publication number: 20200382134
    Abstract: Provided is an optical transmission/reception device including an error correction decoding unit (36) for decoding a received sequence encoded with an LDPC code, in which the error correction decoding unit (36) is configured to perform decoding processing using a parity check matrix (70) of a spatially-coupled LDPC code, which includes a plurality of parity check sub-matrices (71) combined with each other, in which the decoding processing is windowed decoding processing that uses a window (80) over one or more parity check sub-matrices (71), and in which a window size of the window (80) and a decoding iteration count due to throughput and requested correction performance are variable and input from a control circuit (12) connected to the error correction decoding device (36).
    Type: Application
    Filed: February 2, 2017
    Publication date: December 3, 2020
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kenji ISHII, Kazuo KUBO, Kenya SUGIHARA, Hideo YOSHIDA
  • Patent number: 10795289
    Abstract: A fixing device includes a stationary member, a roller, an endless belt, a pressure rotator, and a lubricant applicator. The endless belt is stretched over the stationary member and the roller. The pressure rotator is disposed opposite the stationary member via the endless belt to form a fixing nip between the pressure rotator and the endless belt on the stationary member. The lubricant applicator contacts the roller over an entire length of the roller in an axial direction of the roller. The lubricant applicator contacts an inner surface of the endless belt and has an axial length equal to or greater than an axial length of the stationary member.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: October 6, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Kenichi Hasegawa, Kenji Ishii
  • Publication number: 20200292973
    Abstract: A heater includes a base layer, a heat generator mounted on the base layer, and a slide layer mounted on the base layer. A sliding face of a counterpart slides over the slide layer. The slide layer is made of a material containing fluorine and includes a slide face that contacts the sliding face of the counterpart. The slide face of the slide layer has a surface roughness that is greater than a surface roughness of the sliding face of the counterpart.
    Type: Application
    Filed: February 7, 2020
    Publication date: September 17, 2020
    Inventors: Yuusuke Furuichi, Kenji Ishii, Kenichi Hasegawa, Takashi Fujita, Tomoya Adachi, Yukimichi Someya, Daisuke Inoue, Masahiro Samei, Takayuki Seki
  • Publication number: 20200089147
    Abstract: A fixing device includes a stationary member, a roller, an endless belt, a pressure rotator, and a lubricant applicator. The endless belt is stretched over the stationary member and the roller. The pressure rotator is disposed opposite the stationary member via the endless belt to form a fixing nip between the pressure rotator and the endless belt on the stationary member. The lubricant applicator contacts the roller over an entire length of the roller in an axial direction of the roller. The lubricant applicator contacts an inner surface of the endless belt and has an axial length equal to or greater than an axial length of the stationary member.
    Type: Application
    Filed: August 23, 2019
    Publication date: March 19, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Kenichi Hasegawa, Kenji Ishii
  • Patent number: 10557006
    Abstract: A composition which can provide foamed moldings and foamed electric wires having a small average cell size and a high foam content and causing fewer sparks. The composition includes a fluororesin (A) and a compound (B) which is a sulfonic acid or a salt thereof. The sulfonic acid is represented by the following formula (1): F(CF2)nSO3H (1) wherein n is 4 or 5, or the following formula (2): F(CF2)nCH2CH2SO3H (2) wherein n is 4 or 5. Also disclosed is a foamed molding formed from the composition and a method for producing a foamed molding.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: February 11, 2020
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Tadaharu Isaka, Kenji Ishii, Takeshi Shimono