Patents by Inventor Akira Yoshino

Akira Yoshino 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: 11227735
    Abstract: A gas circuit breaker comprises: a first arc contactor 21; a cylindrical second arc contactor 41; a rod-shaped trigger electrode 31 that is disposed to be movable between the first arc contactor 21 and the second arc contactor 41, and moves inside the cylindrical second arc contactor 41 to ignite an arc at the second arc contactor 41 in the latter half of the current break interval; and a guide portion 41b that has an inner diameter larger than the outer diameter of the trigger electrode 31, has an inner diameter smaller than the inner diameter of a portion of the second arc contactor 41 which is close to the trigger electrode 31, and is disposed in the cylinder of the second arc contactor 41 so as to go around the trigger electrode 31 when the trigger electrode 31 is in a closed state with the first arc contactor 21.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: January 18, 2022
    Assignees: KABUSHIKI KAISHATOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Toshiyuki Uchii, Tomoyuki Yoshino, Takato Ishii, Akira Shimamura, Tsutomu Tanaka
  • Patent number: 11220215
    Abstract: An image capture device is mounted in a vehicle. The image capture device includes: an image capture unit; and a setting unit that sets an image capture condition for each region of the image capture unit each having a plurality of pixels, or for each pixel, based upon at least one of a state exterior to the vehicle and a state of the vehicle.
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: January 11, 2022
    Assignee: NIKON CORPORATION
    Inventors: Akiko Shiga, Toru Miyakoshi, Satoshi Yamaguchi, Akira Kinoshita, Kaoru Yoshino, Hitomi Naganuma, Takashi Kuriyama, Koichi Fukuda, Yuki Kita, Koji Nagaoka, Tomoya Nakagawa, Masakazu Sekiguchi, Takashi Shionoya
  • Patent number: 11187326
    Abstract: A mechanical seal in which a rotary ring can be more reliably positioned. A rotary ring unit 100 includes: a sleeve 120 fixed to a rotary shaft 500; and a rotary ring 110 of which a movement in an axial direction and a rotation with respect to the sleeve 120 is restricted, a fixed ring unit 200 includes: a fixed ring 210 configured to slide on an end surface of the rotary ring 110; and a bellows 250 which presses the fixed ring 210 toward the rotary ring 110, and the sleeve 120 is provided with a stopper 140 which restricts a movement of the rotary ring 110 toward the fixed ring 210.
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: November 30, 2021
    Assignee: EAGLE INDUSTRY CO., LTD.
    Inventors: Osamu Moriya, Akira Yoshino
  • Patent number: 11143029
    Abstract: In an exemplary embodiment, a sealing member 11 is provided between a rotating body 5 rotating while whirling within an accommodating chamber 4 partitioned by a housing and a side wall 3 of the accommodating chamber 4 and has a sliding surface S sliding on the side wall 3, and the sliding surface S includes a first lubrication mechanism 21 arranged on one side in the longitudinal direction, and a second lubrication mechanism 22 arranged on the other side in the longitudinal direction and exhibiting lubrication performance in a sliding direction different from that of the first lubrication mechanism 21, thereby improving sealing performance of the sealing member.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: October 12, 2021
    Assignee: EAGLE INDUSTRY CO., LTD
    Inventors: Yuichiro Tokunaga, Masatoshi Itadani, Akira Yoshino
  • Publication number: 20210156478
    Abstract: The purpose of the present invention is to provide a mechanical seal whose axial dimension can be reduced without impairing sealing performance. In a mechanical seal including a rotating-side sealing ring 11; a stationary-side sealing ring 21 provided within a case 22 and sliding on the rotating-side sealing ring 11; a biasing member 24 for biasing the stationary-side sealing ring 21 to the rotating-side sealing ring 11; and an engagement means 25 for restricting the rotational relative movement between the case 22 and the stationary-side sealing ring 21, the biasing member 24 is arranged radially outside the stationary-side sealing ring 21.
    Type: Application
    Filed: February 19, 2019
    Publication date: May 27, 2021
    Inventors: Tadahiro KIMURA, Masatoshi ITADANI, Akira YOSHINO
  • Patent number: 10954790
    Abstract: An oil seal member is provided at an outside surface of a member performing whirling motion such as a rotary engine rotor. A sliding face of the oil seal member that slides relatively to a stationary-side member is provided with a step extending circumferentially, and has a relatively high surface formed on one radial side with respect to the step and a relatively low surface on the other radial side. The high surface is provided with pumping grooves to pump oil tending to leak from the high surface side into the low surface side, into the high surface side by sliding relatively to the stationary-side member.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: March 23, 2021
    Inventors: Yuichiro Tokunaga, Masatoshi Itadani, Akira Yoshino
  • Patent number: 10756394
    Abstract: The purpose of the present invention is to provide a nonaqueous electrolyte that contains acetonitrile having an excellent balance between viscosity and the dielectric constant and a fluorine-containing inorganic lithium salt, wherein the generation of complex cations comprising a transition metal and acetonitrile is suppressed, excellent load characteristics are exhibited, and increases in internal resistance upon repeated charge/discharge cycles are suppressed; a further purpose of the present invention is to provide a nonaqueous secondary battery. The present invention relates to a nonaqueous electrolyte which contains: a nonaqueous solvent comprising acetonitrile; a fluorine-containing inorganic lithium salt; and a specific nitrogenous cyclic compound typified by benzotriazole.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: August 25, 2020
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Naoki Matsuoka, Akira Yoshino, Yutaka Natsume, Mitsuhiro Kishimi, Hirokazu Kamine
  • Publication number: 20200200275
    Abstract: A mechanical seal in which a rotary ring can be more reliably positioned. A rotary ring unit 100 includes: a sleeve 120 fixed to a rotary shaft 500; and a rotary ring 110 of which a movement in an axial direction and a rotation with respect to the sleeve 120 is restricted, a fixed ring unit 200 includes: a fixed ring 210 configured to slide on an end surface of the rotary ring 110; and a bellows 250 which presses the fixed ring 210 toward the rotary ring 110, and the sleeve 120 is provided with a stopper 140 which restricts a movement of the rotary ring 110 toward the fixed ring 210.
    Type: Application
    Filed: May 8, 2018
    Publication date: June 25, 2020
    Inventors: Osamu MORIYA, Akira YOSHINO
  • Patent number: 10693189
    Abstract: The purpose of the present invention is to provide a nonaqueous electrolyte that contains acetonitrile having excellent balance between viscosity and the dielectric constant and a fluorine-containing inorganic lithium salt, wherein the generation of complex cations comprising a transition metal and acetonitrile is suppressed, excellent load characteristics are exhibited, and self-discharge during high-temperature storage is suppressed; a further purpose of the present invention is to provide a nonaqueous secondary battery. The present invention relates to a nonaqueous electrolyte which contains: a nonaqueous solvent comprising 30 to 100 vol % of acetonitrile; a fluorine-containing inorganic lithium salt; and a specific nitrogenous cyclic compound typified by pyridine.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: June 23, 2020
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Naoki Matsuoka, Akira Yoshino, Yutaka Natsume, Mitsuhiro Kishimi, Hirokazu Kamine
  • Patent number: 10655736
    Abstract: In an embodiment, in a sliding component, a sliding face of a stationary-side seal ring 6 has a fluid circulation groove 10 communicating with a high-pressure fluid side via an entrance portion 10a and an exit portion 10b. A rotating-side seal ring 5 has a larger outer diameter and a smaller inner diameter than the seal ring 6. A groove 15 into which a claw is loosely fitted is provided on an outer periphery of the seal ring 5. A width of the groove 15 is smaller than a distance between the portion 10a and the 10b in the circumferential direction. WMR/WSR is set within a range of 0.75<WMR/WSR<1.4 (WMR is a face width between an inner diameter of the groove 15 and an inner diameter 6b of the sliding face; WSR is a face width of the sliding face).
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: May 19, 2020
    Assignee: EAGLE INDUSTRY CO., LTD.
    Inventors: Masatoshi Itadani, Kazumasa Sunagawa, Yuichiro Tokunaga, Hideyuki Inoue, Takeshi Hosoe, Ryoma Yamakawa, Yuta Negishi, Kenji Kiryu, Keiichi Chiba, Akira Yoshino, Hiroshi Kubota
  • Publication number: 20200063560
    Abstract: In an exemplary embodiment, a sealing member 11 is provided between a rotating body 5 rotating while whirling within an accommodating chamber 4 partitioned by a housing and a side wall 3 of the accommodating chamber 4 and has a sliding surface S sliding on the side wall 3, and the sliding surface S includes a first lubrication mechanism 21 arranged on one side in the longitudinal direction, and a second lubrication mechanism 22 arranged on the other side in the longitudinal direction and exhibiting lubrication performance in a sliding direction different from that of the first lubrication mechanism 21, thereby improving sealing performance of the sealing member.
    Type: Application
    Filed: November 17, 2017
    Publication date: February 27, 2020
    Inventors: Yuichiro TOKUNAGA, Masatoshi ITADANI, Akira YOSHINO
  • Patent number: 10531849
    Abstract: There is provided a radiographic imaging apparatus capable of facilitating a comparative radiological interpretation of symmetric portions or a temporal comparative radiological interpretation of a same imaging target. The radiographic imaging apparatus includes an image control unit configured to cause a display unit configured to display a plurality of divided screens to display a first radiographic image of a first imaging target on a first divided screen of the plurality of divided screens. The image control unit causes a radiographic image of the first imaging target that is captured at a different time from the first radiographic image or a radiographic image of a second imaging target that is a symmetric imaging target of the first imaging target to be displayed on a second divided screen of the plurality of divided screens as a second radiographic image.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: January 14, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuo Shimada, Osamu Tsujii, Akira Yoshino, Hidehiko Morinaga
  • Patent number: 10443737
    Abstract: In an embodiment, a slide component includes one slide part 5 provided, on a low-pressure side of a sealing face thereof, with a negative pressure generation mechanism 10 including a negative pressure generation groove 10. The negative pressure generation groove 10a communicates with a high-pressure fluid side and is separated from a low-pressure fluid side by a land portion R. Another slide part 1 is provided, in a sealing face thereof, with at least one interference groove 15 communicating with the high-pressure fluid side for producing pressure variations in a fluid in the negative pressure generation groove 10a. The at least one interference groove 15 has an end 15a on an inside-diameter side extending to a position to radially overlap the negative pressure generation groove 10a.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: October 15, 2019
    Assignee: EAGLE INDUSTRY CO., LTD.
    Inventors: Masatoshi Itadani, Kazumasa Sunagawa, Yuichiro Tokunaga, Hideyuki Inoue, Takeshi Hosoe, Ryoma Yamakawa, Yuta Negishi, Kenji Kiryu, Keiichi Chiba, Akira Yoshino, Hiroshi Kubota
  • Patent number: 10344867
    Abstract: In an embodiments, a slide component includes a pair of slide parts that relatively slide on each other, one of the slide parts being provided in a sealing face with fluid circulation grooves 10 that communicate with a high-pressure fluid side via inlet portions and outlet portions and are separated from a low-pressure fluid side by land portions, the other of the slide parts being circumferentially provided in a sealing face with a plurality of interference grooves 15, 16, 17, 20 for producing pressure variations in a fluid in the fluid circulation grooves 10, adjacent ones of the interference grooves 15, 16, 17, 20 being set to have different shapes.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: July 9, 2019
    Assignee: EAGLE INDUSTRY CO., LTD.
    Inventors: Masatoshi Itadani, Kazumasa Sungawa, Yuichiro Tokunaga, Hideyuki Inoue, Takeshi Hosoe, Ryoma Yamakawa, Yuta Negishi, Kenji Kiryu, Keiichi Chiba, Akira Yoshino, Hiroshi Kubota
  • Publication number: 20190203840
    Abstract: Two conflicting functions of sealing and lubrication of sliding faces are achieved for a long time. The sliding face of a rotating-side seal ring 3 is provided with dynamic pressure generation grooves 11 configured to communicate with the circumferential edge on the inner peripheral side of the sliding face and not to communicate with the circumferential edge on the outer peripheral side. A spring 7 is provided on the back side of a stationary-side seal ring 6 for pressing the stationary-side seal ring 6 against the sliding face of the rotating-side seal ring 3. A spring holder 8 is provided between the back side of the stationary-side seal ring 6 and the spring 7.
    Type: Application
    Filed: September 7, 2017
    Publication date: July 4, 2019
    Inventors: Hikaru KATORI, Keiichi CHIBA, Masatoshi ITADANI, Tadahiro KIMURA, Akira YOSHINO
  • Publication number: 20190169988
    Abstract: An oil seal member is provided at an outside surface of a member performing whirling motion such as a rotary engine rotor. A sliding face of the oil seal member that slides relatively to a stationary-side member is provided with a step extending circumferentially, and has a relatively high surface formed on one radial side with respect to the step and a relatively low surface on the other radial side. The high surface is provided with pumping grooves to pump oil tending to leak from the high surface side into the low surface side, into the high surface side by sliding relatively to the stationary-side member.
    Type: Application
    Filed: July 19, 2017
    Publication date: June 6, 2019
    Inventors: Yuichiro TOKUNAGA, Masatoshi ITADANI, Akira YOSHINO
  • Patent number: 10274086
    Abstract: Provided is a slide component that can prevent deposit formation on a sealing face as well as promoting circulation of a fluid on sealing faces while fulfilling both conflicting conditions of sealing and lubrication, to maintain the sealing function of the sealing faces for a long period of time. The slide component includes a pair of slide parts that relatively slide on each other, one of the slide parts being provided in a sealing face with fluid circulation grooves 10 that communicate with a high-pressure fluid side via an inlet portion and an outlet portion and are separated from a low-pressure fluid side by a land portion, the other of the slide parts being provided in a sealing face with interference grooves 15 that communicate with the high-pressure fluid side and produce pressure variations in a fluid in the fluid circulation grooves 10.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: April 30, 2019
    Assignee: EAGLE INDUSTRY CO., LTD.
    Inventors: Masatoshi Itadani, Kazumasa Sunagawa, Yuichiro Tokunaga, Hideyuki Inoue, Takeshi Hosoe, Ryoma Yamakawa, Yuta Negishi, Kenji Kiryu, Keiichi Chiba, Akira Yoshino, Hiroshi Kubota
  • Patent number: 10260633
    Abstract: A sealing device which can stably exhibit a sealing function and enables a reduction in the number of components as well as in a radial size of the device. The sealing device includes a metal cartridge case (110) having a case main body (111) and a first supporting portion (113), a resin sealing member (120), an elastic sealing member (130), and a metal fixing member (140). An outer diameter of a cylindrical portion (141) of the fixing member (140) is set to be equal to or smaller than an inner diameter of the case main body (111), and the cylindrical portion (141) and the case main body (111) are secured by welding. The resin sealing member (120) and the elastic sealing member (130) are fixed by being held in between the first supporting portion (113) and a second supporting portion (142) of the fixing member (140).
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: April 16, 2019
    Assignee: EAGLE INDUSTRY CO., LTD.
    Inventor: Akira Yoshino
  • Patent number: 10092264
    Abstract: An image processing apparatus obtains a three-dimensional radiation image of a right region of substantially symmetrical regions, obtains a three-dimensional radiation image of a left region of the substantially symmetrical regions, performs alignment between the three-dimensional radiation image of the right region and the three-dimensional radiation image of the left region based on a feature position of the regions, and substantially symmetrically arranges and displays the three-dimensional radiation image of the right region and the three-dimensional radiation image of the left region which have been aligned.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: October 9, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshihito Machida, Tetsuo Shimada, Osamu Tsujii, Akira Yoshino, Maiko Sato, Hidehiko Morinaga
  • Publication number: 20180187784
    Abstract: In an embodiment, in a sliding component, a sliding face of a stationary-side seal ring 6 has a fluid circulation groove 10 communicating with a high-pressure fluid side via an entrance portion 10a and an exit portion 10b. A rotating-side seal ring 5 has a larger outer diameter and a smaller inner diameter than the seal ring 6. A groove 15 into which a claw is loosely fitted is provided on an outer periphery of the seal ring 5. A width of the groove 15 is smaller than a distance between the portion 10a and the 10b in the circumferential direction. WMR/WSR is set within a range of 0.75<WMR/WSR<1.4 (WMR is a face width between an inner diameter of the groove 15 and an inner diameter 6b of the sliding face; WSR is a face width of the sliding face).
    Type: Application
    Filed: June 23, 2016
    Publication date: July 5, 2018
    Inventors: Masatoshi ITADANI, Kazumasa SUNAGAWA, Yuichiro TOKUNAGA, Hideyuki INOUE, Takeshi HOSOE, Ryoma YAMAKAWA, Yuta NEGISHI, Kenji KIRYU, Keiichi CHIBA, Akira YOSHINO, Hiroshi KUBOTA