Patents by Inventor Tsutomu Kawai

Tsutomu Kawai 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: 11501751
    Abstract: To alleviate information-dependent behavior by using a mobile terminal of a user of the mobile terminal. A mobile terminal including a first signal generator that generates a frequency signal in the audible band, a second signal generator that generates a high-frequency signal in a frequency band higher than the audible band, a speaker that converts the high-frequency signal into a corresponding high-frequency sound, and a timing controller that controls timing of the generation of the high-frequency signal to be a timing that does not correlate with the timing of the generation of the frequency signal in the audible band is provided.
    Type: Grant
    Filed: March 23, 2021
    Date of Patent: November 15, 2022
    Assignee: ACTION RESEARCH CO., LTD.
    Inventors: Tsutomu Oohashi, Norie Kawai, Emi Nishina, Manabu Honda
  • Patent number: 11401924
    Abstract: Provided are a linear compressor and a linear compressor control system that do not require a sensor for detecting a position of a mover, and can compute a mover position with high accuracy, in consideration of position dependency of an induced voltage constant. A linear compressor 20 includes a field element 11 having a first end connected to elastic bodies (201a and 201b) and including a permanent magnet 111, an armature 12 having a winding 122 wound around a magnetic pole 121, and a linear motor 10 that causes the field element 11 and the armature 12 to reciprocate relatively in an axial direction.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: August 2, 2022
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Kaito Hotta, Wataru Hatsuse, Masaki Koyama, Tsutomu Ito, Yoshinori Kawai
  • Publication number: 20210396338
    Abstract: Each of a pair of couplers includes: a vacuum double-pipe structure main part; a valve seat forming an opening through which a fluid flows; and a valve body in the main part. The valve body is configured such that, when separating the couplers, in each coupler, the body is brought into contact with the seat by a spring to close the opening, and when coupling the couplers, the body of each coupler is pressed by the body of the other coupler to move away from the seat and open the opening. The valve body includes: a holding member holding a sealing material sealing between the body and the seat when the body is in contact with the seat; a resin block covering a distal end surface of the holding member; and a metal operating member accommodating the block and protruding from the holding member to pass through the opening.
    Type: Application
    Filed: October 28, 2019
    Publication date: December 23, 2021
    Applicants: KAWASAKI JUKOGYO KABUSHIKI KAISHA, TB GLOBAL TECHNOLOGIES LTD.
    Inventors: Tomoaki UMEMURA, Shuntaro UNNO, Kentaro OKUMURA, Tsutomu KAWAI
  • Patent number: 11079051
    Abstract: To provide an emergency detachment mechanism for a fluid handling device that has exceptional heat insulation performance and enables liquid hydrogen or another very-low-temperature fluid to be handled. An emergency detachment mechanism for a fluid handling device provided with a pair of couplers 1, wherein each of the pair of couplers 1 has a coupler body part 5 including an internal tube part 2 in which a fluid passes through an interior and which opens at a distal end side, an external tube part 3 which forms a vacuum layer 9 with the internal tube part 2 and which opens at a distal end side, and a connecting flange part 4 that closes off a space between the internal tube part 2 and the external tube part 3, a wall thickness of the connecting flange part 4 being less than a wall thickness of the external tube part 3.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: August 3, 2021
    Assignees: TB GLOBAL TECHNOLOGIES LTD., KAWASAKI HEAVY INDUSTRIES, LTD
    Inventors: Tsutomu Kawai, Tomoaki Umemura
  • Publication number: 20210071795
    Abstract: A fluid loading joint for rotatably connecting double pipes to each other includes: a first half including a first inner pipe, a first outer pipe, and a holder, the first inner pipe being provided with a first flange, the first outer pipe accommodating the first inner pipe therein, the holder holding the first outer pipe such that the first outer pipe is rotatable; a second half including a sliding surface facing the first flange, the second half including a second inner pipe and a second outer pipe, the second inner pipe being provided with a second flange, the second outer pipe accommodating the second inner pipe therein and being provided with an outer flange that is fastened to the holder; an inner sealing member and an outer sealing member that are disposed between the first flange and the sliding surface; an inner passage provided in the second flange, the inner passage leading a leaked fluid from between the inner sealing member and the outer sealing member to an outer circumferential surface of the se
    Type: Application
    Filed: December 26, 2018
    Publication date: March 11, 2021
    Applicants: KAWASAKI JUKOGYO KABUSHIKI KAISHA, TOKYO BOEKI ENGINEERING LTD.
    Inventors: Tomoaki UMEMURA, Tsutomu KAWAI
  • Publication number: 20210061640
    Abstract: A fluid loading joint includes: a first half provided at an end of a first vacuum double pipe, the first half including a first inner pipe, a first outer pipe, and a first blocking member blocking between the first inner pipe and the first outer pipe; a second half provided at an end of a second vacuum double pipe, the second half including a second inner pipe, a second outer pipe, and a second blocking member blocking between the second inner pipe and the second outer pipe; an annular inner insulator interposed between the first inner pipe and the second inner pipe; and an annular outer insulator interposed between the first outer pipe and the second outer pipe, the outer insulator surrounding the inner insulator, with a gas space positioned between the outer insulator and the inner insulator, the gas space being formed between the first blocking member and the second blocking member.
    Type: Application
    Filed: December 26, 2018
    Publication date: March 4, 2021
    Applicants: KAWASAKI JUKOGYO KABUSHIKI KAISHA, TOKYO BOEKI ENGINEERING LTD.
    Inventors: Tomoaki UMEMURA, Tsutomu KAWAI
  • Patent number: 10724688
    Abstract: An emergency release system includes a first shut-off valve unit which is land-based; and a second shut-off valve unit which is provided for a marine vessel and separably connected to the first shut-off valve unit, and the first shut-off valve unit is provided with a reservoir container which receives liquid air generated in the first shut-off valve unit and dropped, in a state in which the second shut-off valve unit is separated from the first shut-off valve unit, and the system includes a container support mechanism which is capable of retaining the reservoir container at a retracted position in a state in which the first and second shut-off valve units are connected to each other, the container support mechanism being configured to automatically shift the reservoir container to a reserving position, in a state in which the first and second shut-off valve units are separated from each other.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: July 28, 2020
    Assignees: KAWASAKI JUKOGYO KABUSHIKI KAISHA, TOKYO BOEKI ENGINEERING LTD.
    Inventors: Shuntaro Unno, Tomonori Takase, Tomoaki Umemura, Tsutomu Kawai
  • Publication number: 20200010314
    Abstract: To provide an emergency detachment mechanism for a fluid handling device that has exceptional heat insulation performance and enables liquid hydrogen or another very-low-temperature fluid to be handled. An emergency detachment mechanism for a fluid handling device provided with a pair of couplers 1, wherein each of the pair of couplers 1 has a coupler body part 5 including an internal tube part 2 in which a fluid passes through an interior and which opens at a distal end side, an external tube part 3 which forms a vacuum layer 9 with the internal tube part 2 and which opens at a distal end side, and a connecting flange part 4 that closes off a space between the internal tube part 2 and the external tube part 3, a wall thickness of the connecting flange part 4 being less than a wall thickness of the external tube part 3.
    Type: Application
    Filed: February 2, 2018
    Publication date: January 9, 2020
    Applicants: TOKYO BOEKI ENGINEERING LTD., KAWASAKI HEAVY INDUSTRIES, LTD.
    Inventors: Tsutomu KAWAI, Tomoaki UMEMURA
  • Patent number: 10371298
    Abstract: An object is to provide an emergency detachment device of a fluid handling device, the emergency detachment device having exceptional heat insulation performance and making it possible to handle extremely-low-temperature fluids such as liquid hydrogen. A first coupler 2 and a second coupler 3 are provided with a vacuum section 10 between an inner pipe section 5 and an outer pipe section 6, and are provided with two valves 1 in series. A remaining-fluid-transferring mechanism is provided such that, after second valves 1B provided further inward enter a closed-valve state during emergency detachment, residual fluid that remains closer to the first valves 1A than the second valves 1B is transferred into the inner pipes sections 5 provided further inward of the second valves 1B.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: August 6, 2019
    Assignees: TOKYO BOEKI ENGINEERING LTD., KAWASAKI HEAVY INDUSTRIES, LTD.
    Inventors: Tsutomu Kawai, Tomonori Takase, Shuntaro Unno
  • Patent number: 10260570
    Abstract: A friction plate has a plurality of friction material segments circularly fixed on an annular core plate, wherein each of the friction material segments includes an oil groove having an opening that opens in the direction of an outer circumferential edge of the friction plate and an end portion that ends between an inner circumferential edge and the outer circumferential edge, oil passages in communication in the direction of the inner and the outer circumferential edges of the friction plate are provided among the friction material segments, and at least some of the oil passages have a first shape, the width of which in a circumferential direction decreases from the inner circumferential edge of the friction plate toward the outer circumferential edge thereof.
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: April 16, 2019
    Assignee: NSK-WARNER K.K.
    Inventors: Hideaki Takabayashi, Yousuke Ikeda, Masanori Okada, Masahiro Kobayashi, Osamu Tanaka, Fumimasa Muramatsu, Yoshinori Watanabe, Masahiro Yamada, Tsutomu Kawai, Kazuyuki Fujita
  • Publication number: 20180224034
    Abstract: An object is to provide an emergency detachment device of a fluid handling device, the emergency detachment device having exceptional heat insulation performance and making it possible to handle extremely-low-temperature fluids such as liquid hydrogen. A first coupler 2 and a second coupler 3 are provided with a vacuum section 10 between an inner pipe section 5 and an outer pipe section 6, and are provided with two valves 1 in series. A remaining-fluid-transferring mechanism is provided such that, after second valves 1B provided further inward enter a closed-valve state during emergency detachment, residual fluid that remains closer to the first valves 1A than the second valves 1B is transferred into the inner pipes sections 5 provided further inward of the second valves 1B.
    Type: Application
    Filed: July 7, 2016
    Publication date: August 9, 2018
    Applicants: TOKYO BOEKI ENGINEERING LTD, KAWASAKI HEAVY INDUSTRIES, LTD
    Inventors: Tsutomu KAWAI, Tomonori TAKASE, Shuntaro UNNO
  • Publication number: 20180195671
    Abstract: An emergency release system includes a first shut-off valve unit which is land-based; and a second shut-off valve unit which is provided for a marine vessel and separably connected to the first shut-off valve unit, and the first shut-off valve unit is provided with a reservoir container which receives liquid air generated in the first shut-off valve unit and dropped, in a state in which the second shut-off valve unit is separated from the first shut-off valve unit, and the system includes. a container support mechanism which is capable of retaining the reservoir container at a retracted position in a state in which the first and second shut-off valve units are connected to each other, the container support mechanism being configured to automatically shift the reservoir container to a reserving position, in a state in which the first and second shut-off valve units are separated from each other.
    Type: Application
    Filed: July 11, 2016
    Publication date: July 12, 2018
    Applicants: KAWASAKI JUKOGYO KABUSHIKI KAISHA, TOKYO BOEKI ENGINEERING LTD.
    Inventors: Shuntaro UNNO, Tomonori TAKASE, Tomoaki UMEMURA, Tsutomu KAWAI
  • Patent number: 9850964
    Abstract: A ratchet type one-way clutch includes an outer race having a pocket, an inner race having a notch, a pawl member housed in the pocket to transmit torque between the inner race and the outer race, and having a tip portion engaging with the notch and a circular portion; and a spring urging the pawl member to the inner race is provided. A central angle of the circular portion is 180 degrees or greater. An angle between a segment between both ends of an opening of the circular arc portion and a segment between the circular portion of the pawl member and a contact point at which the tip portion engages with the notch is greater than 90 degrees, and an angle between the spring and a segment between the center of the circular portion and a center of the ratchet type one-way clutch is greater than 45 degrees.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: December 26, 2017
    Assignee: NSK-WARNER K.K.
    Inventors: Tsutomu Kawai, Kazuyuki Fujita, Masahiro Yamada, Sousuke Kawai
  • Patent number: 9600271
    Abstract: A system includes: processing circuitry and a database which stores target data to be accessed by a plurality of information processing apparatus each of which executes a software program that issues a request to access the target data, the request including version information regarding the software program which issued the request and is being updated from a first version to a second version. The processing circuitry is configured to: update the database by transferring data from a first database relating to the first version to a second database relating to the second version; receive the request from one of the plurality of information processing apparatuses during the updating of the database; and determine a transmission destination of the received request based on the version information included in the received request and a condition of whether or not the target data is transferred from the first database to the second database.
    Type: Grant
    Filed: November 16, 2015
    Date of Patent: March 21, 2017
    Assignee: FUJITSU LIMITED
    Inventor: Tsutomu Kawai
  • Publication number: 20170048307
    Abstract: An apparatus acquires a number of executable units of application programs to be executed by a server, in response to a notification indicating completion of initialization of the application programs. The apparatus transmits, to the server, a stop instruction to stop operations of all the executable units to be executed by the server, transmits, to the server, requests whose number is equal to or greater than the acquired number of the executable units, and transmits, to the server, a restart instruction to restart operations of all the executable units that have been stopped.
    Type: Application
    Filed: July 20, 2016
    Publication date: February 16, 2017
    Applicant: FUJITSU LIMITED
    Inventor: Tsutomu KAWAI
  • Patent number: 9562575
    Abstract: A ratchet type one-way clutch is provided that includes an outer race having a pocket on an inner circumference thereof, an inner race arranged on an inner diameter side of the outer race so as to be coaxial therewith, the inner race having a notch on an outer circumference thereof, a pawl member housed in the pocket and engaged with the notch of the inner race to transmit torque between the inner race and the outer race, and a spring for urging the pawl member to the inner race. The ratchet type one-way clutch is provided with urging force stabilizing means for stabilizing an urging force of the spring.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: February 7, 2017
    Assignee: NSK-WARNER K.K.
    Inventors: Tsutomu Kawai, Kazuyuki Fujita, Masahiro Yamada, Sousuke Kawai
  • Publication number: 20160139912
    Abstract: A system includes: processing circuitry and a database which stores target data to be accessed by a plurality of information processing apparatus each of which executes a software program that issues a request to access the target data, the request including version information regarding the software program which issued the request and is being updated from a first version to a second version. The processing circuitry is configured to: update the database by transferring data from a first database relating to the first version to a second database relating to the second version; receive the request from one of the plurality of information processing apparatuses during the updating of the database; and determine a transmission destination of the received request based on the version information included in the received request and a condition of whether or not the target data is transferred from the first database to the second database.
    Type: Application
    Filed: November 16, 2015
    Publication date: May 19, 2016
    Applicant: FUJITSU LIMITED
    Inventor: Tsutomu KAWAI
  • Patent number: 9229742
    Abstract: When a user management server apparatus transmits session information to a user terminal apparatus operated by a user, and receives the session information from an electronic device via a network, the user management server apparatus registers a correspondence relationship between the user who operates the user terminal apparatus and the electronic device. A temporary registration server apparatus receives the session information from the user terminal apparatus and transmits the session information and address information on the network of the user management server apparatus which should be a transmission destination of the session information to the electronic device.
    Type: Grant
    Filed: December 29, 2009
    Date of Patent: January 5, 2016
    Assignee: SONY CORPORATION
    Inventors: Takeshi Fujita, Tsutomu Kawai, Keiichi Ogawa
  • Publication number: 20150369302
    Abstract: The present invention provides a friction plate that takes more air into a lubricating oil on a friction surface so as to reduce the shear resistance force of the lubricating oil interposed between friction materials, thereby achieving significantly reduced drag torque at the time of idling, as compared with a conventional friction plate, and a wet-type multiple-disc clutch provided with the friction plate.
    Type: Application
    Filed: January 31, 2014
    Publication date: December 24, 2015
    Applicant: NSK-WARNER K.K.
    Inventors: Hideaki TAKABAYASHI, Yousuke IKEDA, Masanori OKADA, Masahiro KOBAYASHI, Osamu TANAKA, Fumimasa MURAMATSU, Yoshinori WATANABE, Masahiro YAMADA, Tsutomu KAWAI, Kazuyuki FUJITA
  • Publication number: 20150345574
    Abstract: A ratchet type one-way clutch includes an outer race having a pocket, an inner race having a notch, a pawl member housed in the pocket to transmit torque between the inner race and the outer race, and having a tip portion engaging with the notch and a circular portion; and a spring urging the pawl member to the inner race is provided. A central angle of the circular portion is 180 degrees or greater. An angle between a segment between both ends of an opening of the circular arc portion and a segment between the circular portion of the pawl member and a contact point at which the tip portion engages with the notch is greater than 90 degrees, and an angle between the spring and a segment between the center of the circular portion and a center of the ratchet type one-way clutch is greater than 45 degrees.
    Type: Application
    Filed: May 20, 2015
    Publication date: December 3, 2015
    Inventors: Tsutomu Kawai, Kazuyuki Fujita, Masahiro Yamada, Sousuke Kawai