Patents by Inventor Keisuke Kawashima

Keisuke Kawashima 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: 10049527
    Abstract: A gaming machine includes: a power source unit; a game control device; a reporting device; a first temperature sensor provided to the power source unit, which monitors whether the temperature of the power source unit is at or higher than a first threshold temperature; a second temperature sensor provided to the power source unit, which monitors whether the temperature of the power source unit is at or higher than a second threshold temperature higher than the first threshold temperature; and a power control device which performs an abnormal-situation process which causes the reporting device to inform the occurrence of an abnormal situation, when the temperature of the power source unit is at or higher than the first threshold temperature, and perform a power-supply stopping process which stops power supply to the devices, when the temperature of the power source unit is at or higher than the second threshold temperature.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: August 14, 2018
    Assignees: UNIVERSAL ENTERTAINMENT CORPORATION, ARUZE GAMING AMERICA, INC.
    Inventors: Keisuke Kawashima, Yoshitomo Sasaki, Tatsuhiko Tanimura, Masumi Sakamoto
  • Patent number: 9792758
    Abstract: A gaming machine includes: a casing top having an upper door device capable of being opened/closed; a casing bottom having a lower door device capable of being opened/closed; an upper door lock mechanism capable of locking the upper door device; and an lower door lock mechanism capable of locking the lower door device, wherein the upper door lock mechanism is provided inside the casing bottom.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: October 17, 2017
    Assignees: UNIVERSAL ENTERTAINMENT CORPORATION, ARUZE GAMING AMERICA, INC.
    Inventors: Keisuke Kawashima, Yoshitomo Sasaki, Hiromichi Ikeda, Akira Shimizu
  • Patent number: 9663639
    Abstract: The present invention is a rubber composition for tire treads, of which the temperature of the peak position of the temperature curve of tan ? is ?16.0° C. or higher and ?6.0° C. or lower, tan ? at the peak position is larger than 1.13, tan ? at 0° C. is 0.95 or more, and the value obtained by dividing the absolute value of the difference between tan ? at ?5° C. and tan ? at 5° C. by the temperature difference between ?5° C. and 5° C. {|(tan ? at ?5° C.)?(tan ? at 5° C.)|/10} (/° C.) is smaller than 0.045/° C. The invention provides the rubber compositions for tire treads that more highly satisfy both low-heat-generation property and wet braking performance.
    Type: Grant
    Filed: June 4, 2013
    Date of Patent: May 30, 2017
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Keisuke Kawashima
  • Patent number: 9487888
    Abstract: A cord for reinforcing rubber articles according to the present invention is formed by a thread with ply-twisted cellulose fiber twisted with a thread of ply-twisted nylon fiber. The ply twist number of the nylon fiber is less than the ply twist number of the cellulose fiber. A pneumatic tire according to the present invention uses the cord for reinforcing rubber articles according to the present invention in a ply cord of the carcass.
    Type: Grant
    Filed: February 2, 2012
    Date of Patent: November 8, 2016
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Keisuke Kawashima
  • Publication number: 20160005266
    Abstract: A gaming machine includes: a casing top having an upper door device capable of being opened/closed; a casing bottom having a lower door device capable of being opened/closed; an upper door lock mechanism capable of locking the upper door device; and an lower door lock mechanism capable of locking the lower door device, wherein the upper door lock mechanism is provided inside the casing bottom.
    Type: Application
    Filed: July 2, 2015
    Publication date: January 7, 2016
    Inventors: Keisuke KAWASHIMA, Yoshitomo Sasaki, Hiromichi Ikeda, Akira Shimizu
  • Publication number: 20160001188
    Abstract: A gaming machine includes a casing accommodating therein one or more display devices and a control board configured to control a game, wherein on the control board, one or more display port terminals each used for connecting the one or more display devices is mounted.
    Type: Application
    Filed: July 2, 2015
    Publication date: January 7, 2016
    Inventors: Keisuke Kawashima, Yoko Aikawa, Tatsuhiko Tanimura, Hiroatsu Ike
  • Publication number: 20160004370
    Abstract: A gaming machine includes a motherboard unit having a substrate on which a semiconductor device is mounted, the semiconductor device being a single package sealing therein a main processor having a CPU function for executing a game processing and sub processor capable of executing video processing, wherein the motherboard unit is connected to a power supply unit, the main processor and the sub processor are connected to each other via a bus of a certain communication protocol, and the main processor, at a time of powering on by the power supply unit, preferentially activates the sub processor as a GPU for executing graphics processing which is a part of the game processing, before a connection destination of a bus of a communication protocol other than the certain communication protocol.
    Type: Application
    Filed: July 2, 2015
    Publication date: January 7, 2016
    Inventors: Keisuke KAWASHIMA, Hiroatsu Ike, Yoko Aikawa, Tatsuhiko Tanimura, Yoshitomo Sasaki, Akira Shimizu
  • Publication number: 20160005267
    Abstract: A gaming machine includes: a power source unit; a game control device; a reporting device; a first temperature sensor provided to the power source unit, which monitors whether the temperature of the power source unit is at or higher than a first threshold temperature; a second temperature sensor provided to the power source unit, which monitors whether the temperature of the power source unit is at or higher than a second threshold temperature higher than the first threshold temperature; and a power control device which performs an abnormal-situation process which causes the reporting device to inform the occurrence of an abnormal situation, when the temperature of the power source unit is at or higher than the first threshold temperature, and perform a power-supply stopping process which stops power supply to the devices, when the temperature of the power source unit is at or higher than the second threshold temperature.
    Type: Application
    Filed: July 2, 2015
    Publication date: January 7, 2016
    Inventors: Keisuke KAWASHIMA, Yoshitomo SASAKI, Tatsuhiko TANIMURA, Masumi SAKAMOTO
  • Patent number: 9128238
    Abstract: Disclosed is an optical material including a cyclic olefin copolymer containing at least a repeating structural unit [A] represented by the general formula (1) and a repeating structural unit [B] represented by the general formula (2) and having a molar ratio [A]/[B] of from 95/5 to 1/99, wherein the absolute value of the ratio ?OB/?F is from 0.001 to 0.250 in which ?OB represents the amount of a change in the absolute value of the orientation birefringence calculated from the phase difference (nm) at a wavelength of 633 nm/film thickness (?m) in a stretched film obtained from the optical material, and ?F represents the amount of a change in the absolute value of the orientation coefficient determined from the dichroic ratio of parallel light intensity I? to perpendicular light intensity I?, each relative to the orientation direction according to Raman spectroscopy.
    Type: Grant
    Filed: April 4, 2011
    Date of Patent: September 8, 2015
    Assignees: MITSUI CHEMICALS, INC., YASUHIRO KOIKE
    Inventors: Tadahiro Sunaga, Takashi Oda, Hirofumi Io, Keisuke Kawashima, Yasuhiro Koike
  • Publication number: 20150183971
    Abstract: The present invention is a rubber composition for tire treads, of which the temperature of the peak position of the temperature curve of tan ? is ?16.0° C. or higher and ?6.0° C. or lower, tan ? at the peak position is larger than 1.13, tan ? at 0° C. is 0.95 or more, and the value obtained by dividing the absolute value of the difference between tan ? at ?5° C. and tan ? at 5° C. by the temperature difference between ?5° C. and 5° C. {|(tan ? at ?5° C.)?(tan ? at 5° C.)|/10} (/° C.) is smaller than 0.045/° C. The invention provides the rubber compositions for tire treads that more highly satisfy both low-heat-generation property and wet braking performance.
    Type: Application
    Filed: June 4, 2013
    Publication date: July 2, 2015
    Applicant: BRIDGESTONE CORPORATION
    Inventor: Keisuke Kawashima
  • Publication number: 20130319594
    Abstract: A cord for reinforcing rubber articles according to the present invention is formed by a thread with ply-twisted cellulose fiber twisted with a thread of ply-twisted nylon fiber. The ply twist number of the nylon fiber is less than the ply twist number of the cellulose fiber. A pneumatic tire according to the present invention uses the cord for reinforcing rubber articles according to the present invention in a ply cord of the carcass.
    Type: Application
    Filed: February 2, 2012
    Publication date: December 5, 2013
    Applicant: BRIDGESTONE CORPORATION
    Inventor: Keisuke Kawashima
  • Publication number: 20130030136
    Abstract: Disclosed is an optical material including a cyclic olefin copolymer containing at least a repeating structural unit [A] represented by the general formula (1) and a repeating structural unit [B] represented by the general formula (2) and having a molar ratio [A]/[B] of from 95/5 to 1/99, wherein the absolute value of the ratio ?OB/?F is from 0.001 to 0.250 in which ?OB represents the amount of a change in the absolute value of the orientation birefringence calculated from the phase difference (nm) at a wavelength of 633 nm/film thickness (?m) in a stretched film obtained from the optical material, and ?F represents the amount of a change in the absolute value of the orientation coefficient determined from the dichroic ratio of parallel light intensity I? to perpendicular light intensity I?, each relative to the orientation direction according to Raman spectroscopy.
    Type: Application
    Filed: April 4, 2011
    Publication date: January 31, 2013
    Applicants: MITSUI CHEMICALS, INC.
    Inventors: Tadahiro Sunaga, Takashi Oda, Hirofumi Io, Keisuke Kawashima, Yasuhiro Koike
  • Publication number: 20120152425
    Abstract: Provided is a run-flat tire in which a higher compatibility between the riding comfort and the run-flat travel durability during normal travelling can be attained. Provided is a run-flat tire comprising a bead portion 1, a side wall portion 2, a tread portion 3, a carcass 4 composed of one or more carcass plies extending toroidally between the pair of bead portions to reinforce these portions, and a side reinforcing rubber layer 5 having a crescent cross-sectional shape arranged on the inside of the carcass at the side wall portion. The carcass ply cord is a hybrid cord formed by twisting a filament composed of cellulose fibers and a filament composed of nylon, the thermal shrinkage stress (cN/dtex) of the hybrid cord at 177° C. after an adhesive treatment is not less than 0.20 cN/dtex, and the thermal shrinkage stress (cN/dtex) of the hybrid cord at 177° C. drawn from a tire product is not less than 0.10 cN/dtex.
    Type: Application
    Filed: August 24, 2010
    Publication date: June 21, 2012
    Applicant: BRIDGSTONE CORPORATION
    Inventors: Keisuke Kawashima, Hiroyuki Mori
  • Patent number: 4390966
    Abstract: A sequence controller for parallel and other operations by way of mutual interlocking with other controllers is disclosed having flags which may be set and reset not only by predetermined user instructions therein but also by user instructions in another equivalent controller connected thereto by a common bus, and controlling the flags so that the statuses of the flags may be evaluated in accordance with predetermined user instructions and utilized as operational conditions.
    Type: Grant
    Filed: July 15, 1980
    Date of Patent: June 28, 1983
    Assignee: Omron Tateisi Electronics Co.
    Inventors: Keisuke Kawashima, Yoshitane Saito, Akihiro Yamada, Satoshi Yano
  • Patent number: 3971822
    Abstract: An ester compound of the formula: ##EQU1## wherein R.sup.1 is hydrogen or hydroxy, R.sup.2 is alkyl of one to five carbon atoms, alkenyl of two to three carbon atoms, cycloalkyl of three to five carbon atoms or methylcycloalkyl of four to six carbon atoms and Y is alkylene of one to four carbon atoms, is disclosed. Several methods for preparing the compound[I] are also disclosed. The compound[I] is useful as a non-nutritive sweetening agent.
    Type: Grant
    Filed: June 25, 1975
    Date of Patent: July 27, 1976
    Assignee: Tanabe Seiyaku Co., Ltd.
    Inventors: Ichiro Chibata, Munetugu Miyoshi, Hiroshi Ito, Toshiyuki Fujii, Keisuke Kawashima