Patents by Inventor Yoshihisa Sakai

Yoshihisa Sakai 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: 20200262398
    Abstract: A braking force controller causes a first actuator unit to generate a target jerk when the target jerk is equal to or larger than a first jerk, causes the first actuator unit to generate the first jerk and a second actuator unit to generate a jerk obtained by subtracting the first jerk from the target jerk as an additional jerk when the target jerk is smaller than the first jerk and equal to or larger than the sum of the first jerk and a second jerk, and causes the first actuator unit to generate the first jerk and the second actuator unit to generate the second jerk as the additional jerk when the target jerk is smaller than the sum of the first jerk and the second jerk.
    Type: Application
    Filed: January 15, 2020
    Publication date: August 20, 2020
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shun SATO, Kazuki MIYAKE, Yoshihisa YAMADA, Akitsugu SAKAI, Kazumitsu SUGANO, Hiroya FUJIWARA, Hiromasa TAKAI
  • Patent number: 10559535
    Abstract: The present disclosure improves the adhesive strength of a shield film in a high-frequency module that includes a shield film that shields components from unwanted electromagnetic waves from the outside. A high-frequency module is provided with: a sealing body that includes a multilayer wiring substrate, components that are mounted on an upper surface of the multilayer wiring substrate, and a sealing resin layer that is stacked on the upper surface of the multilayer wiring substrate and covers the components; and a shield film that covers a surface of the sealing resin layer. A side surface of the sealing body has curved surface portions formed so as to have a curved surface shape, and the curved surface portions are roughened with a plurality of grooves.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: February 11, 2020
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Yoshihito Otsubo, Yoshihisa Masuda, Hideo Nakagoshi, Yuta Morimoto, Norio Sakai, Yoriyuki Matsumoto, Hiroaki Tsuchida
  • Publication number: 20190332952
    Abstract: An image pickup system includes an input/output modeling section 24, the input/output modeling section 24 creating, as a population, an image group obtained when a specific target is photographed, (access image), and generating an inference model by using, as teacher data, sequential images selected from the image group created as the population, based on whether the specific target can be accessed, wherein each image of the image group is associated with date and time information and/or position information, and the input/output modeling section 24 generates an inference model for determining based on the date and time information and/or the position information whether a process to the specific target is good or bad.
    Type: Application
    Filed: April 24, 2019
    Publication date: October 31, 2019
    Applicant: OLYMPUS CORPORATION
    Inventors: Osamu NONAKA, Kazuhiko OSA, Yoichi YOSHIDA, Hirokazu NOZAKI, Masahiro FUJIMOTO, Hidekazu IWAKI, Koji SAKAI, Keiji OKADA, Yoshihisa OGATA
  • Patent number: 8333517
    Abstract: A semiconductor submodule includes a substrate (10) as a first substrate having at least one hole, and at least one optical semiconductor device (16) disposed such that light travels through the hole, a substrate (11) as a second substrate having a semiconductor device (26) for driving the optical semiconductor device (16) and amplifying signals and an electrical connector (28) for inputting and outputting electrical signals from and to the outside, and a flexible cable (12) electrically connecting an end of the substrate (10) and an end of the substrate (11) and allowing the first substrate to be folded opposite to the surface on which the optical semiconductor device is mounted.
    Type: Grant
    Filed: February 4, 2008
    Date of Patent: December 18, 2012
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Hiromasa Tanobe, Yoshihisa Sakai, Masaru Kobayashi, Ryo Nagase
  • Patent number: 8244133
    Abstract: A simple optical waveband multiplexer/demultiplexer operable to separate a wavelength-division multiplexed light beam WDM consisting of a plurality of wavebands WB each including a plurality of optical channels, into a predetermined plurality of wavebands WB, and output the separated plurality of wavebands WB from a plurality of output ports, wherein the wavelength-division multiplexed light beam WDM is transmitted through two array waveguides each capable of performing a demultiplexing function with a resolution corresponding to wavelengths of the optical channels, and a characteristic of sequentially shifting the output ports by one position with shifting of input ports by one position, whereby the wavelength-division multiplexed light beam WDM is separated into a plurality of wavebands WB each including the mutually different optical channels selected from the optical channels included in the wavelength-division multiplexed light beam WDM, and the separated wavebands WB are outputted from the plurality of
    Type: Grant
    Filed: April 18, 2007
    Date of Patent: August 14, 2012
    Assignees: National University Corporation, Nippon Telegraph and Telephone Corporation
    Inventors: Ken-ichi Sato, Hiroshi Hasegawa, Shoji Kakehashi, Osamu Moriwaki, Shin Kamei, Kenya Suzuki, Yoshihisa Sakai, Kouichi Takiguchi
  • Patent number: 8157454
    Abstract: A receptacle (20) detachably accommodating a connector plug (34) connected to optical fibers (32) is rotatably supported by a shaft (14) provided in an installation table (10). The receptacle (20) is biased by a leaf spring (16) for biasing opposite ends of the shaft (14) in one direction. A locking/unlocking mechanism for selectively locking or unlocking the receptacle (20) connected with the connector plug (34) relative to the installation table (10) and a locking mechanism fixing portion (12) includes a locking nib (30Ra) of a lock releasing button (30R), a locking nib (30La) of a lock releasing button (30L), locking nib receiving portions (12na, 12nb) and a coil spring (31).
    Type: Grant
    Filed: February 1, 2008
    Date of Patent: April 17, 2012
    Assignees: Yamaichi Electronics Co., Ltd., Nippon Telegraph and Telephone Corporation
    Inventors: Toshiyasu Ito, Hiromasa Tanobe, Yoshihisa Sakai, Masaru Kobayashi, Ryo Nagase
  • Publication number: 20100074581
    Abstract: A semiconductor submodule includes a substrate (10) as a first substrate having at least one hole, and at least one optical semiconductor device (16) disposed such that light travels through the hole, a substrate (11) as a second substrate having a semiconductor device (26) for driving the optical semiconductor device (16) and amplifying signals and an electrical connector (28) for inputting and outputting electrical signals from and to the outside, and a flexible cable (12) electrically connecting an end of the substrate (10) and an end of the substrate (11) and allowing the first substrate to be folded opposite to the surface on which the optical semiconductor device is mounted.
    Type: Application
    Filed: February 4, 2008
    Publication date: March 25, 2010
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Hiromasa Tanobe, Yoshihisa Sakai, Masaru Kobayashi, Ryo Nagase
  • Publication number: 20100014813
    Abstract: A receptacle (20) detachably accommodating a connector plug (34) connected to optical fibers (32) is rotatably supported by a shaft (14) provided in an installation table (10). The receptacle (20) is biased by a leaf spring (16) for biasing opposite ends of the shaft (14) in one direction. A locking/unlocking mechanism for selectively locking or unlocking the receptacle (20) connected with the connector plug (34) relative to the installation table (10) and a locking mechanism fixing portion (12) includes a locking nib (30Ra) of a lock releasing button (30R), a locking nib (30La) of a lock releasing button (30L), locking nib receiving portions (12na, 12nb) and a coil spring (31).
    Type: Application
    Filed: February 1, 2008
    Publication date: January 21, 2010
    Applicant: YAMAICHI ELECTRONICS CO., LTD.
    Inventors: Toshiyasu Ito, Hiromasa Tanobe, Yoshihisa Sakai, Masaru Kobayashi, Ryo Nagase
  • Publication number: 20090220234
    Abstract: A simple optical waveband multiplexer/demultiplexer operable to separate a wavelength-division multiplexed light beam WDM consisting of a plurality of wavebands WB each including a plurality of optical channels, into a predetermined plurality of wavebands WB, and output the separated plurality of wavebands WB from a plurality of output ports, wherein the wavelength-division multiplexed light beam WDM is transmitted through two array waveguides each capable of performing a demultiplexing function with a resolution corresponding to wavelengths of the optical channels, and a characteristic of sequentially shifting the output ports by one position with shifting of input ports by one position, whereby the wavelength-division multiplexed light beam WDM is separated into a plurality of wavebands WB each including the mutually different optical channels selected from the optical channels included in the wavelength-division multiplexed light beam WDM, and the separated wavebands WB are outputted from the plurality of
    Type: Application
    Filed: April 18, 2007
    Publication date: September 3, 2009
    Applicants: NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY, NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Ken-ichi Sato, Hiroshi Hasegawa, Shoji Kakehashi, Osamu Moriwaki, Shin Kamel, Kenya Suzuki, Yoshihisa Sakai, Kouichi Takiguchi
  • Publication number: 20090041415
    Abstract: A double core optical fiber is provided, in which single mode signal light and multimode signal light can be transmitted and a multimode transmission of the signal light guided through the core can be reduced even when the optical fiber is bent. The double core optical fiber of the present invention includes a core (111) arranged on a central axis of the optical fiber and having a refractive index (112), a first cladding (121) arranged on the outer circumference of the core (111) and having a refractive index (122) smaller than the refractive index (112), and a second cladding arranged on the outer circumference of the first cladding (121) and having a refractive index (132) smaller than the refractive index (122).
    Type: Application
    Filed: March 23, 2007
    Publication date: February 12, 2009
    Applicant: Nippon Telegraph and Telephone Corporation
    Inventors: Hiromasa Tanobe, Yoshihisa Sakai
  • Publication number: 20070015238
    Abstract: Vectors that encode Adeno-Associated Virus (AAV) Rep and Cap proteins of different serotypes and Adenovirus transcription products that provide helper functions were used to produce pseudotyped recombinant AAV (rAAV) virions. Purification methods generated pseudotyped rAAV virion stocks that were 99% pure with titers of 1×1012?1×1013 vector genomes/ml.
    Type: Application
    Filed: June 5, 2003
    Publication date: January 18, 2007
    Inventors: Richard Snyder, Sergie Zolotukhin, Yoshihisa Sakai, Barry Byrne, Mark Potter, Irine Zolotukhin, Scott Loiler, Vince Chiodo, Nicholas Muzyczka, William Hauswirth, Terence Flotte, Corinna Burger, Edgardo Rodriguez
  • Patent number: 7120358
    Abstract: An optical communication equipment comprises shared optical sources 88a–88d to be shared by communication nodes 100a–100d, the wavelengths of optical signals 76a–76d are converted into desired wavelengths ?a–?d according to the addressed information of the corresponding optical label signals 77a–77d by using the shared optical sources 88a–88d, and routed to the addressed communication nodes without being converted into electrical signals by using the wavelength routing function of the cyclic-wavelength arrayed-waveguide grating (AWG) 120. The load of each communication node can be reduced by incorporating the multi-wavelength optical sources, which can be shared among individual communication nodes, into the router 80.
    Type: Grant
    Filed: January 13, 2004
    Date of Patent: October 10, 2006
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Akira Okada, Kazutoshi Kato, Kazuto Noguchi, Yoshihisa Sakai, Takashi Sakamoto, Morito Matsuoka, Sen-ichi Suzuki
  • Patent number: 7113701
    Abstract: An optical communication equipment comprises shared optical sources 88a–88d to be shared by communication nodes 100a–100d, the wavelengths of optical signals 76a–76d are converted into desired wavelengths ?a–?d according to the addressed information of the corresponding optical label signals 77a–77d by using the shared optical sources 88a–88d, and routed to the addressed communication nodes without being converted into electrical signals by using the wavelength routing function of the cyclic-wavelength arrayed-waveguide grating (AWG) 120. The load of each communication node can be reduced by incorporating the multi-wavelength optical sources, which can be shared among individual communication nodes, into the router 80.
    Type: Grant
    Filed: January 13, 2004
    Date of Patent: September 26, 2006
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Akira Okada, Kazutoshi Kato, Kazuto Noguchi, Yoshihisa Sakai, Takashi Sakamoto, Morito Matsuoka, Sen-ichi Suzuki
  • Patent number: 7094604
    Abstract: Vectors that encode Adeno-Associated Virus (AAV) Rep and Cap proteins of different serotypes and Adenovirus transcription products that provide helper functions were used to produce pseudotyped recombinant AAV (rAAV) virions. Purification methods generated pseudotyped rAAV virion stocks that were 99% pure with titers of 1×1012–1×1013 vector genomes/ml.
    Type: Grant
    Filed: March 11, 2004
    Date of Patent: August 22, 2006
    Assignee: University of Florida Research Foundation, Inc.
    Inventors: Richard O. Snyder, Sergei Zolotukhin, Yoshihisa Sakai, Barry J. Byrne, Mark R. Potter, Irine Zolotukhin, Scott Loiler, Vince A. Chiodo, Nicholas Muzyczka, William W. Hauswirth, Terence R. Flotte, Corinna Burger, Edgardo Rodriguez, Kevin R. Nash, Thomas J. Fraites
  • Patent number: 6961169
    Abstract: A light-controlled light modulator can achieve high-speed, low-loss wavelength conversion. Continuous light with a wavelength ?j is launched into an MMI coupler via a port, and is split into two parts by the MMI coupler, which are led to a loop-type interferometer. In the loop-type interferometer, the two parts travel separately around the loop as clockwise traveling light and counterclockwise traveling light, are combined by the MMI coupler again via a filter-equipped phase modulator, thereby being emitted to the port. In this state, signal light ?i(s) with a wavelength ?i is launched into the filter-equipped phase modulator via a port. Even when the wavelength ?i of the signal light ?i(s) is equal to the wavelength ?j of the wavelength converted output light, the wavelength conversion can be achieved with preventing noise from being mixed into the output light emitted from a port.
    Type: Grant
    Filed: April 13, 2004
    Date of Patent: November 1, 2005
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Yasuo Shibata, Yasuhiro Suzuki, Yoshihisa Sakai, Yasumasa Suzaki, Akira Okada, Kazuto Noguchi, Rieko Sato
  • Patent number: 6842560
    Abstract: A part of a wavelength division multiplexed optical signal output from a multiplexing area is extracted as a check signal, and then the extracted signal is guided to a multiplexing area. A reentered check signal is detected at a facet located opposite a facet from which the check signal has been reentered, and the state of the detected check signal is determined. Furthermore at need, on the basis of the result of the determination, a control signal is output that controls operations of a plurality of optical signals input to the multiplexing area.
    Type: Grant
    Filed: February 26, 2002
    Date of Patent: January 11, 2005
    Assignees: NTT Electronics Corporation, Nippon Telegraph and Telephone Corporation
    Inventors: Yoshiki Yamauchi, Kouichi Fujisaki, Akimasa Kaneko, Takashi Asaoka, Yoshihisa Sakai
  • Publication number: 20040209245
    Abstract: Vectors that encode Adeno-Associated Virus (AAV) Rep and Cap proteins of different serotypes and Adenovirus transcription products that provide helper functions were used to produce pseudotyped recombinant AAV (rAAV) virions. Purification methods generated pseudotyped rAAV virion stocks that were 99% pure with titers of 1×1012-1×1013 vector genomes/ml.
    Type: Application
    Filed: March 11, 2004
    Publication date: October 21, 2004
    Inventors: Richard O. Snyder, Sergei Zolotukhin, Yoshihisa Sakai, Barry J. Byrne, Mark R. Potter, Irine Zolotukhin, Scott Loiler, Vince A. Chiodo, Nicholas Muzyczka, William W. Hauswirth, Terence R. Flotte, Corinna Burger, Edgardo Rodriguez, Kevin R. Nash, Thomas J. Fraites
  • Publication number: 20040190809
    Abstract: A light-controlled light modulator can achieve high-speed, low-loss wavelength conversion. Continuous light with a wavelength &lgr;j is launched into an MMI coupler via a port, and is split into two parts by the MMI coupler, which are led to a loop-type interferometer. In the loop-type interferometer, the two parts travel separately around the loop as clockwise traveling light and counterclockwise traveling light, are combined by the MMI coupler again via a filter-equipped phase modulator, thereby being emitted to the port. In this state, signal light &lgr;i(s) with a wavelength &lgr;i is launched into the filter-equipped phase modulator via a port. Even when the wavelength &lgr;i of the signal light &lgr;i(s) is equal to the wavelength &lgr;j of the wavelength converted output light, the wavelength conversion can be achieved with preventing noise from being mixed into the output light emitted from a port.
    Type: Application
    Filed: April 13, 2004
    Publication date: September 30, 2004
    Applicant: Nippon Telegraph and Telephone Corporation
    Inventors: Yasuo Shibata, Yasuhiro Suzuki, Yoshihisa Sakai, Yasumasa Suzaki, Akira Okada, Kazuto Noguchi, Rieko Sato
  • Patent number: 6782210
    Abstract: An optical communication equipment comprises shared optical sources 88a-88d to be shared by communication nodes 100a-100d, the wavelengths of optical signals 76a-76d are converted into desired wavelengths &lgr;a-&lgr;d according to the addressed information of the corresponding optical label signals 77a-77d by using the shared optical sources 88a-88d and routed to the addressed communication nodes without being converted into electrical signals by using the wavelength routing function of the cyclic-wavelength arrayed-waveguide grating (AWG) 120. The load of each communication node can be reduced by incorporating the multi-wavelength optical sources, which can be shared among individual communication nodes, into the router 80.
    Type: Grant
    Filed: August 23, 2000
    Date of Patent: August 24, 2004
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Akira Okada, Kazutoshi Kato, Kazuto Noguchi, Yoshihisa Sakai, Takashi Sakamoto, Morito Matsuoka, Sen-ichi Suzuki
  • Publication number: 20040146300
    Abstract: An optical communication equipment comprises shared optical sources 88a-88d to be shared by communication nodes 100a-100d, the wavelengths of optical signals 76a-76d are converted into desired wavelengths &lgr;a-&lgr;d according to the addressed information of the corresponding optical label signals 77a-77d by using the shared optical sources 88a-88d, and routed to the addressed communication nodes without being converted into electrical signals by using the wavelength routing function of the cyclic-wavelength arrayed-waveguide grating (AWG) 120. The load of each communication node can be reduced by incorporating the multi-wavelength optical sources, which can be shared among individual communication nodes, into the router 80.
    Type: Application
    Filed: January 13, 2004
    Publication date: July 29, 2004
    Applicant: Nippon Telegraph and Telephone Corporation
    Inventors: Akira Okada, Kazutoshi Kato, Kazuto Noguchi, Yoshihisa Sakai, Takashi Sakamoto, Morito Matsuoka, Sen-ichi Suzuki