Patents by Inventor Isao Matsushima

Isao Matsushima 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: 10774003
    Abstract: Provided herein is a method for forming a periodic microstructure on a surface of zirconia-based ceramics, which are not easily mechanically workable, without causing thermal adverse effects. A zirconia-based ceramic having a surface periodic microstructure is also provided. A linearly or circularly polarized laser beam is irradiated to a zirconia-based ceramic surface, and periodic irregularities are formed in a spot of the laser beam. Stripe-pattern irregularities parallel to the direction of polarization can be formed in a spot of a laser beam by irradiating a linearly polarized ultrashort pulsed-laser beam to a zirconia-based ceramic surface. A mesh-like raised region and a dot-like recessed region can be periodically formed by irradiating a circularly polarized ultrashort pulsed-laser beam to a ceramic surface.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: September 15, 2020
    Assignee: National Institute of Advanced Industrial Science and Technology
    Inventors: Masayuki Kakehata, Hidehiko Yashiro, Isao Matsushima
  • Publication number: 20200286005
    Abstract: A rideshare vehicle utilization supporting system supports matching of a rideshare vehicle and a user. The rideshare vehicle utilization supporting system includes: a rideshare vehicle management unit that manages a ridesharing plan of the rideshare vehicle within a retrieval target area; a predetermined rideshare vehicle extraction unit that extracts a predetermined rideshare vehicle, the predetermined rideshare vehicle being the rideshare vehicle for which the ridesharing plan within the retrieval target area in a retrieval target time zone is already determined by the rideshare vehicle management unit; and a predetermined ridesharing route guide unit that makes a display unit visually recognized by the user display a predetermined ridesharing route guide screen for which a predetermined ridesharing route of the predetermined rideshare vehicle is superimposed on a map of the retrieval target area.
    Type: Application
    Filed: February 25, 2020
    Publication date: September 10, 2020
    Inventors: Isao Uematsu, Kuniaki Matsushima, Kenichi Kobayashi
  • Publication number: 20200279307
    Abstract: A vehicle ride-sharing support system which supports matching between a user and a vehicle for ride-sharing includes a condition information acquiring unit acquiring desired condition information, from a user terminal apparatus, the desired condition information including a desired location and a desired time slot which are desired by the user, a reservation information acquiring unit acquiring and storing a reservation accepting record indicating a reserved location, a reserved date and a reserved time slot for each of matching reservation requests transmitted from the user terminal apparatus, and a difficulty level calculating unit calculating, on a basis of the stored past reservation accepting record, an index value of an index representing a difficulty level of achievement of the matching for each predetermined time slot including the desired time slot for each of predetermined locations in an area within a predetermined distance range including the desired location.
    Type: Application
    Filed: February 26, 2020
    Publication date: September 3, 2020
    Inventors: Kuniaki Matsushima, Isao Uematsu, Kenichi Kobayashi
  • Publication number: 20200230977
    Abstract: A coater includes a coating device and a rotator. The coating device is configured to apply a coating liquid on a sheet material. The rotator is configured to contact a coated surface of the sheet material to which the coating liquid is applied in the coating device. The rotator has a plurality of fine particles on a circumferential surface of the rotator.
    Type: Application
    Filed: November 15, 2019
    Publication date: July 23, 2020
    Applicant: Ricoh Company, Ltd.
    Inventor: Isao MATSUSHIMA
  • Patent number: 10399803
    Abstract: A feeding device includes a plurality of suction units, disposed above a conveyed medium stacked on a stacker, to attract the conveyed medium. At least one of the plurality of suction units includes a rotary fan including a board and a plurality of walls extending from the board; and a driver to rotate the rotary fan. The at least one of the plurality of suction units generates a vortex air with a side of the board with the plurality of walls directed to the conveyed medium. The at least one of the plurality of suction units being a suction unit generates a vortex air.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: September 3, 2019
    Assignee: RICOH COMPANY, LTD.
    Inventors: Kyosuke Nakada, Kiyoshi Hata, Mamoru Yorimoto, Yuichiro Maeyama, Isao Matsushima, Takeshi Watanabe, Kahei Nakamura
  • Patent number: 10081506
    Abstract: A feeding device to feed a conveyed medium stacked on a stacker, includes a first suction unit, a second suction unit, and third suction units. The first suction unit includes a suction chamber; a suction fan to exhaust air from the suction chamber; and a first driver to rotate the suction fan. The suction units are disposed above the conveyed medium stacked on the stacker. The second suction unit includes a rotary fan including a board and a plurality of walls extending from the board; and a second driver to rotate the rotary fan. The second suction unit generates a vortex flow directed to the conveyed medium. The plurality of third suction units is disposed in a direction perpendicular to a conveyance direction of the conveyed medium and attracts ends of the conveyed medium in the direction perpendicular to the conveyance direction.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: September 25, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Takeshi Watanabe, Kyosuke Nakada, Kiyoshi Hata, Mamoru Yorimoto, Yuichiro Maeyama, Isao Matsushima, Kahei Nakamura
  • Publication number: 20170260100
    Abstract: Provided herein is a method for forming a periodic microstructure on a surface of zirconia-based ceramics, which are not easily mechanically workable, without causing thermal adverse effects. A zirconia-based ceramic having a surface periodic microstructure is also provided. A linearly or circularly polarized laser beam is irradiated to a zirconia-based ceramic surface, and periodic irregularities are formed in a spot of the laser beam. Stripe-pattern irregularities parallel to the direction of polarization can be formed in a spot of a laser beam by irradiating a linearly polarized ultrashort pulsed-laser beam to a zirconia-based ceramic surface. A mesh-like raised region and a dot-like recessed region can be periodically formed by irradiating a circularly polarized ultrashort pulsed-laser beam to a ceramic surface.
    Type: Application
    Filed: September 10, 2015
    Publication date: September 14, 2017
    Applicant: National Institute of Advanced Industrial Science and Technology
    Inventors: Masayuki KAKEHATA, Hidehiko YASHIRO, Isao MATSUSHIMA
  • Publication number: 20170210579
    Abstract: A feeding device to feed a conveyed medium stacked on a stacker, includes a first suction unit, a second suction unit, and third suction units. The first suction unit includes a suction chamber; a suction fan to exhaust air from the suction chamber; and a first driver to rotate the suction fan. The suction units are disposed above the conveyed medium stacked on the stacker. The second suction unit includes a rotary fan including a board and a plurality of walls extending from the board; and a second driver to rotate the rotary fan. The second suction unit generates a vortex flow directed to the conveyed medium. The plurality of third suction units is disposed in a direction perpendicular to a conveyance direction of the conveyed medium and attracts ends of the conveyed medium in the direction perpendicular to the conveyance direction.
    Type: Application
    Filed: January 23, 2017
    Publication date: July 27, 2017
    Applicant: Ricoh Company, Ltd.
    Inventors: Takeshi WATANABE, Kyosuke NAKADA, Kiyoshi HATA, Mamoru YORIMOTO, Yuichiro MAEYAMA, Isao MATSUSHIMA, Kahei NAKAMURA
  • Publication number: 20170210578
    Abstract: A feeding device includes a plurality of suction units, disposed above a conveyed medium stacked on a stacker, to attract the conveyed medium. At least one of the plurality of suction units includes a rotary fan including a board and a plurality of walls extending from the board; and a driver to rotate the rotary fan. The at least one of the plurality of suction units generates a vortex air with a side of the board with the plurality of walls directed to the conveyed medium. The at least one of the plurality of suction units being a suction unit generates a vortex air.
    Type: Application
    Filed: January 20, 2017
    Publication date: July 27, 2017
    Applicant: RICOH COMPANY, LTD.
    Inventors: Kyosuke NAKADA, Kiyoshi HATA, Mamoru YORIMOTO, Yuichiro MAEYAMA, Isao MATSUSHIMA, Takeshi WATANABE, Kahei NAKAMURA
  • Patent number: 9498971
    Abstract: A controller controls an ink liquid feeding operation performed by an ink pump from a negative pressure tank to a pressure tank, and an ink replenishing operation performed by an ink replenisher according to a liquid level in each of the pressure tank and the negative pressure tank so that, during purging, the liquid level in each of the pressure tank and the negative pressure tank is maintained at a reference level.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: November 22, 2016
    Assignee: RISO KAGAKU CORPORATION
    Inventor: Isao Matsushima
  • Publication number: 20160082742
    Abstract: A controller controls an ink liquid feeding operation performed by an ink pump from a negative pressure tank to a pressure tank, and an ink replenishing operation performed by an ink replenisher according to a liquid level in each of the pressure tank and the negative pressure tank so that, during purging, the liquid level in each of the pressure tank and the negative pressure tank is maintained at a reference level.
    Type: Application
    Filed: September 14, 2015
    Publication date: March 24, 2016
    Applicant: RISO KAGAKU CORPORATION
    Inventor: Isao MATSUSHIMA
  • Publication number: 20160082743
    Abstract: A controller regulates pressures of a positive pressure space and a negative pressure space and maintains the pressures at setting pressures when ink is circulated in a circulation path, by: driving an air pump to apply the setting pressures to the positive pressure space and the negative pressure space; and after the setting pressures are applied, controlling opening and closing of a positive-pressure-side pressure regulation valve, opening and closing of a negative-pressure-side pressure regulation valve, and driving of the air pump according to the pressures in the positive pressure space and the negative pressure space, and opening the positive-pressure-side pressure regulation valve or the negative-pressure-side pressure regulation valve simultaneously with the driving of the air pump.
    Type: Application
    Filed: September 11, 2015
    Publication date: March 24, 2016
    Applicant: RISO KAGAKU CORPORATION
    Inventors: Hiroshi SUGITANI, Tomoyuki AKIYAMA, Isao MATSUSHIMA
  • Patent number: 9272524
    Abstract: A controller regulates pressures of a positive pressure space and a negative pressure space and maintains the pressures at setting pressures when ink is circulated in a circulation path, by: driving an air pump to apply the setting pressures to the positive pressure space and the negative pressure space; and after the setting pressures are applied, controlling opening and closing of a positive-pressure-side pressure regulation valve, opening and closing of a negative-pressure-side pressure regulation valve, and driving of the air pump according to the pressures in the positive pressure space and the negative pressure space, and opening the positive-pressure-side pressure regulation valve or the negative-pressure-side pressure regulation valve simultaneously with the driving of the air pump.
    Type: Grant
    Filed: September 11, 2015
    Date of Patent: March 1, 2016
    Assignee: RISO KAGAKU CORPORATION
    Inventors: Hiroshi Sugitani, Tomoyuki Akiyama, Isao Matsushima