Patents by Inventor Koji Okada

Koji Okada 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).

  • Publication number: 20170199840
    Abstract: An on-vehicle electronic device has a generating unit configured to generate a first clock for data communication with another on-vehicle electronic device through a CXPI communication network; and an adjusting unit configured to adjust a duty width of the first clock.
    Type: Application
    Filed: December 9, 2016
    Publication date: July 13, 2017
    Inventors: Akihiro Suzuki, Masami Nakashima, Masuo Inui, Koji Okada, Takeo Zaitsu, Takashi Shimizu, Shinichi Yamamoto, Kazuhiro Tomita, Susumu Kuroda
  • Patent number: 9698984
    Abstract: In a decryption apparatus according to an embodiment, a holding device pre-holds a verification formula. A determination device performs a calculation based on the verification formula read from the holding device by substituting, into the verification formula, the part of the re-encrypted data received from a re-encryption apparatus and the public key of a re-encryption key generation apparatus and the private key of the decryption apparatus, to determine whether or not the verification formula holds true. An output device outputs verification success when a result of the determination indicates that the verification formula holds true.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: July 4, 2017
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA SOLUTIONS CORPORATION
    Inventors: Yoshihiro Fujii, Takuya Yoshida, Koji Okada
  • Patent number: 9654690
    Abstract: An image stabilization apparatus includes a first filter, a second filter, and a signal selector configure to select as a correction signal for an image stabilization a signal obtained from an output of one of the first filter and the second filter which has a higher cutoff frequency, when the first filter has the third cutoff frequency or the second filter has the fourth cutoff frequency, and when a difference between a first output of the first filter and a second output of the second filter is larger than a threshold, and then to select as the correction signal a signal obtained from an output of the other of the first filter and the second filter which has a lower cutoff frequency.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: May 16, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Daisuke Hirai, Koji Okada
  • Patent number: 9541990
    Abstract: An on-vehicle electronic device has a generating unit configured to generate a first clock for data communication with another on-vehicle electronic device through a CXPI communication network; and an adjusting unit configured to adjust a duty width of the first clock.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: January 10, 2017
    Assignee: Cypress Semiconductor Corporation
    Inventors: Akihiro Suzuki, Masami Nakashima, Masuo Inui, Koji Okada, Takeo Zaitsu, Takashi Shimizu, Shinichi Yamamoto, Kazuhiro Tomita, Susumu Kuroda
  • Patent number: 9527932
    Abstract: A method for producing a modified conjugated diene polymer, comprises polymerizing (i) a monomer comprising a conjugated diene compound, or (ii) a monomer comprising a conjugated diene compound and an aromatic vinyl compound, in the presence of: at least one compound selected from the group consisting of formulae (1) and (2), and an alkali metal compound or an alkaline earth metal compound. A1 is a functional group which has a hydrocarbylsilyl group in which three hydrogen atoms in a —SiH3 structure are each substituted by a hydrocarbyl group; has at least one atom selected from the group consisting of N, P and S; and has no active hydrogen and is bound to R1 by any one atom of the N, P and S. R1 and R2 are hydrocarbylene groups.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: December 27, 2016
    Assignee: JSR CORPORATION
    Inventors: Hiroyuki Morita, Takeshi Yuasa, Koichiro Tani, Naoya Nosaka, Ryouji Tanaka, Koji Okada
  • Publication number: 20160314092
    Abstract: An on-vehicle electronic device has a generating unit configured to generate a first clock for data communication with another on-vehicle electronic device through a CXPI communication network; and an adjusting unit configured to adjust a duty width of the first clock.
    Type: Application
    Filed: September 25, 2015
    Publication date: October 27, 2016
    Inventors: Akihiro Suzuki, Masami Nakashima, Masuo Inui, Koji Okada, Takeo Zaitsu, Takashi Shimizu, Shinichi Yamamoto, Kazuhiro Tomita, Susumu Kuroda
  • Patent number: 9426131
    Abstract: A server apparatus according to an embodiment generates a random number on receiving from a user apparatus a notification showing that a re-encryption key should be updated, and calculates re-encryption key data on the basis of the re-encryption key stored and the random number generated. The server apparatus transmits the re-encryption key to the user apparatus and receives, from the user apparatus, the user private key not updated yet and re-encryption key updating data calculated from the re-encryption key data on the basis of the user private key updated. The server apparatus calculates the re-encryption key updated, on the basis of the re-encryption key updating data and the random number, and replaces the re-encryption key stored in the storage device with the updated re-encryption key.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: August 23, 2016
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA SOLUTIONS CORPORATION
    Inventors: Ryotaro Hayashi, Tatsuyuki Matsushita, Yoshihiro Fujii, Takuya Yoshida, Koji Okada
  • Patent number: 9386016
    Abstract: An authentication device receives each authentication context including an output information block, an input information block, and an authenticator block. The output information block includes a process result and process result identification information. The input information block includes a process result and process result identification information. The authentication device verifies each authenticator block. The authentication device searches for the output information block having the same value of process result identification information as the value of process result identification information in the input information block from other authentication contexts based on process result identification information in the input information block included in each authentication context.
    Type: Grant
    Filed: August 17, 2007
    Date of Patent: July 5, 2016
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA SOLUTIONS CORPORATION
    Inventors: Hidehisa Takamizawa, Asahiko Yamada, Tomoaki Morijiri, Koji Okada, Tatsuro Ikeda, Minoru Nishizawa, Yoshihiro Fujii
  • Patent number: 9373621
    Abstract: An analog circuit cell array includes a plurality of transistor cell arranged in an array. Each of the transistor cells includes a first source region, a first channel region, a common drain region, a second channel region, and a second source region arranged in sequence one adjacent to another; and a first gate electrode and a second gate electrode formed on the first channel region and the second channel region, respectively, and wherein the first gate electrode and the second gate electrode are connected together for use, and the first source region and the second source region are connected together for use.
    Type: Grant
    Filed: January 22, 2013
    Date of Patent: June 21, 2016
    Assignee: Cypress Semiconductor Corporation
    Inventors: Kenta Aruga, Suguru Tachibana, Koji Okada
  • Patent number: 9365704
    Abstract: A method for producing a rubber composition includes kneading: a rubber component comprising a conjugated diene polymer having at least one functional group selected from the group consisting of a thiol group, an oxetane group and a hydrocarbylthio group; silica particles; and a catalyst for condensing silanol to form an aggregate of the silica particles. Preferably, at least one polymer selected from the group consisting of a conjugate diene polymer having no functional group bondable to silica, and a polymer having no functional group bondable to silica and the polymer being other than conjugated diene polymer is also kneaded as a rubber component other than the conjugated diene polymer.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: June 14, 2016
    Assignee: JSR CORPORATION
    Inventors: Masahiro Shibata, Koji Okada
  • Patent number: 9309388
    Abstract: Objects of the present invention are to provide a rubber composition that can obtain a rubber elastic body having small rolling resistance and excellent impact resilience and a method for producing the same, and to provide a tire having small rolling resistance and excellent impact resilience. The rubber composition of the present invention is obtained by kneading a rubber component containing 30 to 95% by mass of a conjugated diene polymer (A) and 5 to 70% by mass of cross-linked rubber particles (B) with 20 to 100 parts by mass of silica (C) based on 100 parts by mass of the rubber component.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: April 12, 2016
    Assignee: JSR CORPORATION
    Inventors: Koji Okada, Ryoji Tanaka
  • Patent number: 9267004
    Abstract: An object of the present invention is to provide (a) a polyimide precursor solution which is curable at low temperatures (not more than 200° C.) and which has excellent long-term storage stability, (b) a photosensitive resin composition, a photosensitive resin film, a thermosetting resin composition, and a polyimide insulating film, each of which is obtainable from the polyimide precursor solution and each of which is preferably usable as an insulating material for electric and electronic purposes, and (c) a printed wiring board provided with the insulating film. The above object is achievable by use of a polyimide precursor composition solution containing at least a partially imidized polyimide precursor having a urethane bond.
    Type: Grant
    Filed: July 15, 2009
    Date of Patent: February 23, 2016
    Assignee: KANEKA CORPORATION
    Inventors: Koji Okada, Yoshihide Sekito
  • Publication number: 20160033165
    Abstract: There is provided a fluid heating device for an engine with increased heating efficiency of fluid. The fluid heating device for an engine includes a holder; a heater; and a radiator pipe, the radiator pipe is inserted into the holder, the heater is housed in the holder, heat of the heater is radiated to fluid passing through the radiator pipe via the radiator pipe. The radiator pipe is formed by an outer pipe and an inner pipe in the outer pipe, the heat generated by the heater is transferred to the outer pipe and the inner pipe, the fluid passing inside and outside the inner pipe in the outer pipe is heated by heat radiation from the outer pipe and the inner pipe.
    Type: Application
    Filed: July 30, 2015
    Publication date: February 4, 2016
    Inventors: Koji OKADA, Yasuo FUJII, Mikio ISHIDA
  • Patent number: 9246683
    Abstract: A re-encryption key generator according to an embodiment generates a re-encryption key required to re-encrypt, without decrypting, ciphertext data obtained by encrypting plaintext data by means of a first public key of a first user device to obtain re-encrypted text data which can be decrypted by a second private key of a second user device. The first storage device stores a first private key corresponding to the first public key. The second storage device stores a second public key corresponding to the second private key. The re-encryption key generation device generates the re-encryption key based on the first private key, the second public key, and the first random number.
    Type: Grant
    Filed: October 25, 2013
    Date of Patent: January 26, 2016
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA SOLUTIONS CORPORATION
    Inventors: Ryotaro Hayashi, Tatsuyuki Matsushita, Yoshihiro Fujii, Takuya Yoshida, Koji Okada
  • Publication number: 20160014325
    Abstract: A lens apparatus is detachable from an image pickup apparatus. The lens apparatus includes a controller configured to communicate with the image pickup apparatus in synchronization with a first signal. A communication contains a plurality of blocks in the same cycle of the first signal. The controller transmits information of a first time period to the image pickup apparatus, and prohibits a communication of an m-th block from starting before the first time period passes after a communication of an n-th block starts or ends where n is an integer equal to or larger than 1 and m is an integer larger than n.
    Type: Application
    Filed: September 18, 2015
    Publication date: January 14, 2016
    Inventor: Koji Okada
  • Publication number: 20160009903
    Abstract: The invention provides a rubber composition which can improve low fuel consumption performance, workability, and abrasion resistance at the same time in uses of automobile tires and the like. A modified conjugated diene polymer is produced by a method comprising: a polymerization step of polymerizing a conjugated diene compound or polymerizing a conjugated diene compound and an aromatic vinyl compound to obtain a conjugated diene polymer having an active end in the presence of a metal amide compound obtained by mixing an alkali metal compound or an alkaline earth metal compound with a secondary amine compound and a first modification step of reacting the active end with a compound (C1) having a functional group (a) that interacts with silica, having one or more linear structures where three or more groups or atoms in total derived from at least either of a methylene group and a divalent atom are linearly connected, and capable of binding to a plurality of the active ends.
    Type: Application
    Filed: February 27, 2014
    Publication date: January 14, 2016
    Applicant: JSR CORPORATION
    Inventors: Hiroyuki MORITA, Koichiro TANI, Koji OKADA, Masaaki INOUE
  • Patent number: 9172523
    Abstract: A lens apparatus is detachable from an image pickup apparatus. The lens apparatus includes a controller configured to communicate with the image pickup apparatus in synchronization with a first signal. A communication contains a plurality of blocks in the same cycle of the first signal. The controller transmits information of a first time period to the image pickup apparatus, and prohibits a communication of an m-th block from starting before the first time period passes after a communication of an n-th block starts or ends where n is an integer equal to or larger than 1 and m is an integer larger than n.
    Type: Grant
    Filed: May 8, 2013
    Date of Patent: October 27, 2015
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Koji Okada
  • Patent number: 9145485
    Abstract: A rubber composition that can be used in applications such as automotive tires and can improve the fuel efficiency performance and driving stability of automobiles and the like, a method for producing a rubber composition, and a tire using the same are provided.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: September 29, 2015
    Assignee: JSR CORPORATION
    Inventors: Koji Okada, Ryoji Tanaka, Yoshiyuki Udagawa
  • Publication number: 20150252133
    Abstract: A modified conjugated diene polymer obtained by modifying a conjugated diene polymer that is obtained by polymerizing a conjugated diene compound or polymerizing a conjugated diene compound and an aromatic vinyl compound is produced by a production method comprising a first modification step wherein an unsaturated binding site at least either in the skeleton or at the side chain of the conjugated diene polymer is reacted with a first compound having a group 4 or 13 element of the periodic table.
    Type: Application
    Filed: September 18, 2013
    Publication date: September 10, 2015
    Applicant: JSR CORPORATION
    Inventors: Hiroyuki Morita, Takahiro Kawai, Takeshi Yuasa, Koichiro Tani, Koji Okada, Ryoji Tanaka
  • Patent number: 9129262
    Abstract: A purchaser apparatus stores “anonymous order information including an order ID and purchaser identity verifying information” and “purchaser identity proving secret information”. A shop apparatus stores “anonymous order information including an order ID and purchaser identity verifying information”. If necessary, a purchaser sends a request including an order ID and zero knowledge proving information that a purchaser knows the purchaser identity proving secret information, from a purchaser apparatus to a shop apparatus. A shop apparatus verifies the zero knowledge proving information, based on purchaser identity verifying information retrieved from an order ID included in the request. Therefore, the unlinkability for past use is eliminated if necessary, and inconvenience caused by the unlinkability is eliminated.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: September 8, 2015
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA SOLUTIONS CORPORATION
    Inventors: Takuya Yoshida, Minako Tada, Norikazu Hosaka, Koji Okada, Takehisa Kato