Patents by Inventor Toshiaki Kakii

Toshiaki Kakii 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: 10926721
    Abstract: A control system configured to reduce the number of terminals of a connector in an electronic control unit and reduce the insertion/extraction force of the connector includes an ECU having a first connector unit, and a wire harness unit having a second connector unit to be connected to the first connector unit. The ECU includes a multiplexing control circuit and a first signal line serving as a transmission path for a multiplexed signal. The second connector unit is provided with a second signal line serving as a transmission path for the multiplexed signal transmitted via the first signal line, and a multiplexing control circuit. The multiplexing control circuit performs at least one of a process of separating signals from the multiplexed signal transmitted via the second signal line and a process of multiplexing a plurality of signals and transmitting a multiplexed signal to the second signal line.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: February 23, 2021
    Assignees: AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
    Inventors: Shigeo Hayashi, Hiroki Hirai, Toshiaki Kakii, Mitsuaki Nishie
  • Publication number: 20190184917
    Abstract: A control system configured to reduce the number of terminals of a connector in an electronic control unit and reduce the insertion/extraction force of the connector includes an ECU having a first connector unit, and a wire harness unit having a second connector unit to be connected to the first connector unit. The ECU includes a multiplexing control circuit and a first signal line serving as a transmission path for a multiplexed signal. The second connector unit is provided with a second signal line serving as a transmission path for the multiplexed signal transmitted via the first signal line, and a multiplexing control circuit. The multiplexing control circuit performs at least one of a process of separating signals from the multiplexed signal transmitted via the second signal line and a process of multiplexing a plurality of signals and transmitting a multiplexed signal to the second signal line.
    Type: Application
    Filed: June 15, 2017
    Publication date: June 20, 2019
    Inventors: Shigeo HAYASHI, Hiroki HIRAI, Toshiaki KAKII, Mitsuaki NISHIE
  • Patent number: 9219925
    Abstract: The present invention relates to a displaying method for video image coded data which prevents deterioration of image quality of a video image as much as possible, and conceals, from an observer, deteriorated video quality caused due to a transmission error. The displaying method selects target image frames to be decoded and target image frames to be discarded, by performing error determination (32) in parallel with an error recovery process and other image restoration processes, and decodes (33) only the selected target image frames. A predetermined display device sequentially displays (34) only the decoded target image frames while adjusting a frame rate.
    Type: Grant
    Filed: January 4, 2011
    Date of Patent: December 22, 2015
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Yasuhito Fujita, Yoichi Hata, Yoshimitsu Goto, Toshiaki Kakii
  • Patent number: 9126151
    Abstract: An object of the present invention is to provide a hydrogen separation material resistant to thermal shock, excellent in hydrogen separation characteristic and applicable to a hydrogen separation membrane, etc. and a manufacturing method thereof, as well as a hydrogen separation module and a hydrogen production apparatus comprising the same. In the hydrogen separation material, a silica glass membrane is formed on a porous support having a linear expansion coefficient of 2×10?6/K or less. The manufacturing method for the hydrogen separation material includes a porous support forming step of forming a porous support comprising porous silica glass and a silica glass membrane forming step of forming a silica glass membrane on the surface of the porous silica glass. The hydrogen separation module comprises the hydrogen separation material and a steam reforming catalyst. The hydrogen production apparatus comprises the hydrogen separation module.
    Type: Grant
    Filed: December 10, 2010
    Date of Patent: September 8, 2015
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Hiromasa Tawarayama, Toru Adachi, Toshiaki Kakii
  • Patent number: 8839330
    Abstract: The present invention relates to a moving-picture image data-distribution method that suppresses increases in processing loads at respective information terminals without being affected by an uneven distribution status of processing loads that changes over time or by a bandwidth status of a connected network.
    Type: Grant
    Filed: August 6, 2009
    Date of Patent: September 16, 2014
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Yoshimitsu Goto, Toshiaki Kakii, Yoichi Hata, Yasuhito Fujita
  • Patent number: 8774002
    Abstract: The present invention relates to a traffic control apparatus and the like for optimizing a communication performance of each of local networks to be monitored. The traffic control apparatus (100) temporarily stores in the memory (120) communication band information items of relay nodes (211B, 212B, 213B) through the I/O (140). The controller (110) specifies a bottleneck relay node based on the obtained communication band information items, calculates transmittable/receivable bands to be allocated to the PCs (220B), and notifies the PCs (220B) of the calculated transmittable/receivable bands. In response to this notification, the PCs (220B) divide data to be transmitted, with the divided data corresponding to the allocated bands, and transmit the divided data to the Internet (10), in a manner that the divided data are arranged temporally evenly.
    Type: Grant
    Filed: July 21, 2010
    Date of Patent: July 8, 2014
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Yoichi Hata, Yasuhito Fujita, Yoshimitsu Goto, Toshiaki Kakii
  • Patent number: 8634687
    Abstract: A coated plastic cladding optical fiber and an optical fiber cable, in which a transmission loss caused when this coated fiber or this fiber cable is bent in a small radius is small, and which can be used sufficiently as a USB cable or a HDMI cable in a high speed transmission, are provided. The coated plastic cladding optical fiber 1 has a cladding layer 3 that is formed on an outer periphery of a core glass 2 made of a quartz glass and formed of a polymer resin whose refractive index is lower than core glass, and a resin coating layer 5 that is formed on an outer periphery of the cladding layer 3 and is formed of a thermosetting resin. Then, a diameter of the core glass 2 is set to 50 to 100 ?m, and a relative index difference of the core glass 2 to the cladding layer 3 is set to 3.7% or more.
    Type: Grant
    Filed: April 18, 2011
    Date of Patent: January 21, 2014
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Itaru Sakabe, Kazuyuki Sohma, Tomoyuki Hattori, Takashi Takada, Toshiaki Kakii
  • Patent number: 8634553
    Abstract: A master key (K2,2) inputted by an input unit is stored in a storage unit. A matrix generating unit generates key element matrices (M1-M3) with respect to each of split keys (eR2, eR1, eR3) obtained by a key dividing unit dividing the master key (K2,2). To each coordinate entry of the key element matrices (M1-M3), operation data that successively obtained by repeating a hash operation with a one-way hash function is assigned, so as to maintain hierarchical nature of scalability (L). A key generating unit generates partial keys (K1,1-K2,2) corresponding to respective hierarchies of the scalabilities (R, L), on the basis of the key element matrices (M1-M3). These partial keys (K1,1-K2,2) are outputted to a coding unit or a decoding unit by an output unit.
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: January 21, 2014
    Assignees: Sumitomo Electric Industries, Ltd., Tokyo Metropolitan University
    Inventors: Yoichi Hata, Toshiaki Kakii, Yasuhito Fujita, Yoshimitsu Goto, Hitoshi Kiya, Kiyoshi Nishikawa, Masaaki Fujiyoshi, Shoko Imaizumi
  • Patent number: 8553928
    Abstract: The present invention relates to an image processing method and image inspecting method with high versatility which enable efficient and highly accurate proof of authenticity of a digital image. The image processing method subjects at least a part of a digital image which can exist temporarily or continuously in a falsification-vulnerable environment, to a first morphology operation using a predetermined structuring element, to process the digital image. The image inspecting method subjects the digital image thus processed, to a second morphology operation using the same structuring element as in the first morphology operation. The morphology operations have the idempotent and the presence or absence of falsification can be detected by determining identity of images before and after the second morphology operation.
    Type: Grant
    Filed: March 6, 2007
    Date of Patent: October 8, 2013
    Assignees: Sumitomo Electric Industries, Ltd., Tokyo Metropolitan University
    Inventors: Hitoshi Kiya, Kiyoshi Nishikawa, Masaaki Fujiyoshi, Yoichi Hata, Toshiaki Kakii, Yoshimitsu Goto
  • Publication number: 20130022509
    Abstract: An object of the present invention is to provide a hydrogen separation material resistant to thermal shock, excellent in hydrogen separation characteristic and applicable to a hydrogen separation membrane, etc. and a manufacturing method thereof, as well as a hydrogen separation module and a hydrogen production apparatus comprising the same. In the hydrogen separation material, a silica glass membrane is formed on a porous support having a linear expansion coefficient of 2×10?6/K or less. The manufacturing method for the hydrogen separation material includes a porous support forming step of forming a porous support comprising porous silica glass and a silica glass membrane forming step of forming a silica glass membrane on the surface of the porous silica glass. The hydrogen separation module comprises the hydrogen separation material and a steam reforming catalyst. The hydrogen production apparatus comprises the hydrogen separation module.
    Type: Application
    Filed: December 10, 2010
    Publication date: January 24, 2013
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Hiromasa Tawarayama, Toru Adachi, Toshiaki Kakii
  • Publication number: 20120287338
    Abstract: The present invention relates to a displaying method for video image coded data which prevents deterioration of image quality of a video image as much as possible, and conceals, from an observer, deteriorated video quality caused due to a transmission error. The displaying method selects target image frames to be decoded and target image frames to be discarded, by performing error determination (32) in parallel with an error recovery process and other image restoration processes, and decodes (33) only the selected target image frames. A predetermined display device sequentially displays (34) only the decoded target image frames while adjusting a frame rate.
    Type: Application
    Filed: January 4, 2011
    Publication date: November 15, 2012
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD
    Inventors: Yasuhito Fujita, Yoichi Hata, Yoshimitsu Goto, Toshiaki Kakii
  • Publication number: 20120177329
    Abstract: A coated plastic cladding optical fiber and an optical fiber cable, in which a transmission loss caused when this coated fiber or this fiber cable is bent in a small radius is small, and which can be used sufficiently as a USB cable or a HDMI cable in a high speed transmission, are provided. The coated plastic cladding optical fiber 1 has a cladding layer 3 that is formed on an outer periphery of a core glass 2 made of a quartz glass and formed of a polymer resin whose refractive index is lower than core glass, and a resin coating layer 5 that is formed on an outer periphery of the cladding layer 3 and is formed of a thermosetting resin. Then, a diameter of the core glass 2 is set to 50 to 100 ?m, and a relative index difference of the core glass 2 to the cladding layer 3 is set to 3.7% or more.
    Type: Application
    Filed: April 18, 2011
    Publication date: July 12, 2012
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Itaru Sakabe, Kazuyuki Sohma, Tomoyuki Hattori, Takashi Takada, Toshiaki Kakii
  • Publication number: 20120134270
    Abstract: The present invention relates to a traffic control apparatus and the like for optimizing a communication performance of each of local networks to be monitored. The traffic control apparatus (100) temporarily stores in the memory (120) communication band information items of relay nodes (211B, 212B, 213B) through the I/O (140). The controller (110) specifies a bottleneck relay node based on the obtained communication band information items, calculates transmittable/receivable bands to be allocated to the PCs (220B), and notifies the PCs (220B) of the calculated transmittable/receivable bands. In response to this notification, the PCs (220B) divide data to be transmitted, with the divided data corresponding to the allocated bands, and transmit the divided data to the Internet (10), in a manner that the divided data are arranged temporally evenly.
    Type: Application
    Filed: July 21, 2010
    Publication date: May 31, 2012
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Yoichi Hata, Yasuhito Fujita, Yoshimitsu Goto, Toshiaki Kakii
  • Publication number: 20120121088
    Abstract: A master key (K2,2) inputted by an input unit is stored in a storage unit. A matrix generating unit generates key element matrices (M1-M3) with respect to each of split keys (eR2, eR1, eR3) obtained by a key dividing unit dividing the master key (K2,2). To each coordinate entry of the key element matrices (M1-M3), operation data that successively obtained by repeating a hash operation with a one-way hash function is assigned, so as to maintain hierarchical nature of scalability (L). A key generating unit generates partial keys (K1,1-K2,2) corresponding to respective hierarchies of the scalabilities (R, L), on the basis of the key element matrices (M1-M3). These partial keys (K1,1-K2,2) are outputted to a coding unit or a decoding unit by an output unit.
    Type: Application
    Filed: October 28, 2011
    Publication date: May 17, 2012
    Inventors: Yoichi HATA, Toshiaki Kakii, Yasuhito Fujita, Yoshimitsu Goto, Hitoshi Kiya, Kiyoshi Nishikawa, Masaaki Fujiyoshi, Shoko Imaizumi
  • Publication number: 20110299592
    Abstract: The present invention relates to a moving image data compressing method that enables improvement of the efficiency of compressing moving images and reduction in the processing load due to JPEG 2000 system. In the compressing method, in sequentially compressing, according to JPEG 2000, image frames that are disposed along a time axis without compressing the image frames in the time axis direction, a process of detecting movement of image elements is performed prior to EBCOT, with one or more code blocks, each of which being a minimum processing unit of the EBCOT, as one detection unit. While EBCOT is performed for each of code blocks that constitute a detection unit on which movement has been detected, EBCOT is skipped and predetermined data is supplemented for each of code blocks that constitute a detection unit on which movement has not been detected. Thus, the number of times of processing by EBCOT with a large computation amount can be reduced.
    Type: Application
    Filed: November 26, 2009
    Publication date: December 8, 2011
    Inventors: Yasuhito Fujita, Toshiaki Kakii, Yoichi Hata, Yoshimitsu Goto
  • Publication number: 20110239264
    Abstract: The present invention relates to a moving-picture image data-distribution method that suppresses increases in processing loads at respective information terminals without being affected by an uneven distribution status of processing loads that changes over time or by a bandwidth status of a connected network.
    Type: Application
    Filed: August 6, 2009
    Publication date: September 29, 2011
    Inventors: Yoshimitsu Goto, Toshiaki Kakii, Yoichi Hata, Yasuhito Fujita
  • Patent number: 7983497
    Abstract: This invention relates to a coding method for motion-image data and others effective in a special interactive environment for transmitting motion-image data with information concentrated on only a partial region of a display image as in a two-way interactive system implementing real-time two-way interaction. The coding method involves dividing an image frame forming motion-image data into a plurality of rectangular regions, and grouping each of these rectangular regions into a preset ROI and a non-ROI. These rectangular regions are sequentially compressed so that a code length of a rectangular region grouped into the ROI is larger than a code length of a rectangular region grouped into the non-ROI, thereby generating coded data of each image frame.
    Type: Grant
    Filed: January 13, 2010
    Date of Patent: July 19, 2011
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Toshiaki Kakii, Hisao Maki, Yoichi Hata, Hitoshi Kiya
  • Publication number: 20100128923
    Abstract: The present invention relates to an image processing method and image inspecting method with high versatility which enable efficient and highly accurate proof of authenticity of a digital image. The image processing method subjects at least a part of a digital image which can exist temporarily or continuously in a falsification-vulnerable environment, to a first morphology operation using a predetermined structuring element, to process the digital image. The image inspecting method subjects the digital image thus processed, to a second morphology operation using the same structuring element as in the first morphology operation. The morphology operations have the idempotent and the presence or absence of falsification can be detected by determining identity of images before and after the second morphology operation.
    Type: Application
    Filed: March 6, 2007
    Publication date: May 27, 2010
    Inventors: Hitoshi Kiya, Kiyoshi Nishikawa, Masaaki Fujiyoshi, Yoichi Hata, Toshiaki Kakii, Yoshimitsu Goto
  • Publication number: 20100118935
    Abstract: This invention relates to a coding method for motion-image data and others effective in a special interactive environment for transmitting motion-image data with information concentrated on only a partial region of a display image as in a two-way interactive system implementing real-time two-way interaction. The coding method involves dividing an image frame forming motion-image data into a plurality of rectangular regions, and grouping each of these rectangular regions into a preset ROI and a non-ROI. These rectangular regions are sequentially compressed so that a code length of a rectangular region grouped into the ROI is larger than a code length of a rectangular region grouped into the non-ROI, thereby generating coded data of each image frame.
    Type: Application
    Filed: January 13, 2010
    Publication date: May 13, 2010
    Applicant: Sumitomo Electric Industries, Ltd.
    Inventors: Toshiaki Kakii, Hisao Maki, Yoichi Hata, Hitoshi Kiya
  • Publication number: 20100020966
    Abstract: The present invention relates to an encryption key generating method ensuring resistance to collusion attacks and achieving reduction in a key length of encryption keys corresponding to respective hierarchies of each scalability. In the encryption key generating method, an encryption key (K2,2) corresponding to data in the lowest hierarchies of hierarchical scalabilities (R, L) is divided as a master key by the number of hierarchies in scalability (R). Key element matrices (M1-M3) generated with respective split keys (eR2, eR1, eR3) are assigned operation data successively obtained by repeating a hash operation with a one-way hash function, so as to maintain hierarchical nature of scalability (L). Partial keys (K1,1-K2,2) corresponding to respective hierarchies of the scalabilities (R, L) are generated by combining key elements coordinately consistent among the key element matrices (M1-M3).
    Type: Application
    Filed: November 4, 2008
    Publication date: January 28, 2010
    Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., TOKYO METROPOLITAN UNIVERSITY
    Inventors: Yoichi Hata, Toshiaki Kakii, Yasuhito Fujita, Yoshimitsu Goto, Hitoshi Kiya, Kiyoshi Nishikawa, Masaaki Fujiyoshi, Shoko Imaizumi