Patents by Inventor Satoshi Arai

Satoshi Arai 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: 10287260
    Abstract: Provided is a material that, when compared with SAPd, exhibits the similar activity in cross-coupling (CC) reactions, can decrease the amount of catalytic metal that is mixed into the reaction product, and increases the number of times use can be repeated. Provided are a catalyst and a catalyst precursor that use a catalytic metal other than Pd and that exhibit the CC reaction activity similar to when Pd is used. Provided are a catalyst and a catalyst precursor that exhibit the similar CC reaction activity when using Pd or a catalytic metal other than Pd, without using a carrier such as metal and without using piranha solution. A composite wherein catalytic metal nanoparticles are dispersed in a continuous phase comprising a polymer having C2-6 alkylene group units and phenylene group units (an alkylene group unit being bonded to at least the first and fourth position of the phenylene group unit). The particle diameter of the catalytic metal nanoparticles is at most 20 nm.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: May 14, 2019
    Assignees: Japan Science and Technology Agency, Furuya Metal Co., Ltd.
    Inventors: Mitsuhiro Arisawa, Satoshi Shuto, Naoyuki Hoshiya, Satoshi Arai
  • Publication number: 20190111617
    Abstract: The invention is to provide a resin powder that is highly robust with regard to temperature control and is capable of improving heat resistance of a molded article. In order to solve the above problem, the resin powder according to the invention uses a mixed resin powder in which a thermoplastic base resin powder and a thermoplastic high-melting-point resin powder having a melting point higher than that of the base resin powder are mixed together. For example, isophthalic acid copolymerized PBT (polybutylene terephthalate) is used in the base resin powder, and homo-PBT is used in the high-melting-point resin powder. Alternatively, a polyamide 12 is used in the base resin powder, and MXD nylon is used in the high-melting-point resin powder.
    Type: Application
    Filed: April 13, 2016
    Publication date: April 18, 2019
    Applicant: HITACHI, LTD.
    Inventors: Satoshi ARAI, Shigeharu TSUNODA
  • Patent number: 10222606
    Abstract: A telescopic optical system that can be compact and lightweight is provided, and an optical apparatus including the telescopic optical system is also provided.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: March 5, 2019
    Assignee: Nikon Corporation
    Inventor: Satoshi Arai
  • Publication number: 20180352670
    Abstract: It is provided an electronic control device including a resin molded body, a metal body, and an electronic component, wherein the resin molded body and a main surface of the metal body are bonded, and at least a part of a side surface continuous to the main surface of the metal body is in contact with a side contact portion provided in the resin molded body.
    Type: Application
    Filed: October 7, 2016
    Publication date: December 6, 2018
    Inventors: Satoshi ARAI, Yukio SAKIGAWA, Shigeharu TSUNODA, Masaru KAMOSHIDA, Shirou OOUCHI
  • Patent number: 10131018
    Abstract: A grain-oriented magnetic steel sheet includes grooves each of which extends in a direction intersecting a transportation direction, the grooves being formed at predetermined pitches PL in the transportation direction by laser beam irradiation, in which a relationship between a standard deviation value D and the pitch PL satisfies the following expression (1), the standard deviation value D being a standard deviation of distances between a linear approximation line, which is obtained from a center line of each of the grooves in a groove width direction by a least-squares method, and respective positions on the center line, and an average angle formed between tangent lines of the respective positions on the center line and a direction perpendicular to the transportation direction is more than 0° to 30°. [Expression 1] 0.
    Type: Grant
    Filed: April 24, 2013
    Date of Patent: November 20, 2018
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Koji Hirano, Satoshi Arai, Hideyuki Hamamura, Hirofumi Imai
  • Patent number: 10095413
    Abstract: According to one embodiment, a memory system which is connectable to a host, the memory system includes a first memory as a nonvolatile memory storing information associated with an address translation between a logical address and a physical address, a second memory temporarily storing a part of the information at least, a first controller executing a read operation and a write operation of the information for the second memory in a first data unit, the first data unit being changeable and being a data size of one of regions obtained by dividing in a first address space, the part of the information at least stored in the first memory, and a second controller executing a read operation and a write operation of the information for the first memory in a second data unit different from the first data unit.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: October 9, 2018
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Shunitsu Kohara, Kazuya Kitsunai, Satoshi Arai, Yoshihisa Kojima
  • Publication number: 20180236684
    Abstract: A processing liquid supplying apparatus including a reservoir containing an additive to be added to a liquid flowing through a passage connected at one end to a liquid supply source and at another end to a processing apparatus; an injection pump for injecting the additive into the passage; a weight measuring unit for measuring the weight of the reservoir and converting the weight into an electrical signal at a predetermined interval while the liquid flows in the passage and the additive is injected; a deciding unit for receiving the electrical signal from the weight measuring unit and deciding whether the measured value of the weight of the reservoir is being reduced at a predetermined rate; and a warning unit for issuing a warning that injection is improper when it is decided by the deciding unit that the measured value of the weight is not being reduced at the predetermined rate.
    Type: Application
    Filed: February 21, 2018
    Publication date: August 23, 2018
    Inventors: Naoya Tokumitsu, Satoshi Arai
  • Publication number: 20180222113
    Abstract: To prevent warp deformation of a molded object which is formed by laser powder layer laminating molding. There is provided a powder layer laminating molding method including a first step of forming a powder layer which includes powder of a thermoplastic resin, and a second step of sintering the powder layer by irradiating the formed powder layer with a beam having a heating action, in which a molded object is obtained by repeatedly performing the forming and the sintering of the powder layer in the first step and the second step, and an irradiation surface which is irradiated with the beam is divided into a plurality of small regions.
    Type: Application
    Filed: January 26, 2018
    Publication date: August 9, 2018
    Inventors: Akihiro YAMAGUCHI, Satoshi ARAI, Shigeharu TSUNODA
  • Patent number: 9968984
    Abstract: A porous metal body is manufactured by which a flow rate of a fluid flowing in an axial direction and a radial direction of the porous metal body can be equalized in the circumferential direction of the porous metal body, and a strength of the porous metal body can be increased. The manufacturing can include at least a step of preparing an intermediary body made of a tubular wire mesh, a star-shaped polygonal body forming step of forming a star-shaped polygonal body by alternately forming, in a circumferential direction of the intermediary body, a plurality of protrusions protruding radially outwards and a plurality of recesses receding radially inwards, and a molding step of inserting the star-shaped polygonal body into a mold that restricts an inner peripheral side and an outer peripheral side of the star-shaped polygonal body and compressing the star-shaped polygonal body from one side in an axial direction of the star-shaped polygonal body.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: May 15, 2018
    Assignee: FUJI FILTER MANUFACTURING CO., LTD.
    Inventors: Kiyohisa Kikuchi, Satoshi Arai
  • Patent number: 9964424
    Abstract: Provided are a laser-welded structure and a laser welding method for a cover and a housing ensuring high reliability and suppressing changes in characteristics due to burrs protruding into a subpassage of the flow sensor. To this end, this flow sensor is provided with a housing, a cover, a circuit chamber sealed between these and housing electronic components or wiring, and a subpassage through which the fluid flows that is to be sensed, and is characterized in that there are projections provided on both ends of the joining section of the cover where the housing and the cover are laser-welded, and the height of the projection on the subpassage side is greater than the height of the projection on the side opposite of the subpassage.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: May 8, 2018
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Satoshi Arai, Shigeharu Tsunoda, Shinobu Tashiro, Takeshi Morino
  • Patent number: 9945707
    Abstract: The purpose of the present invention is to provide a flow sensor that makes it possible to detect temperature abnormalities that the flow sensor has been exposed to and the time history of the flow sensor in a high-temperature environment from an externally visible cover material and that uses a cover material for which the laser welding quality can be guaranteed through visual inspection when the sensor is delivered as a product and even if the sensor is used in an abnormal state. A flow sensor provided with a housing, a cover, a circuit chamber that houses a wiring portion sealed between the housing and the cover, and an auxiliary passage through which the liquid to be sensed flows, wherein: a joint portion formed on the housing and a joint portion formed on the inner surface of the cover are joined together through the laser welding; the main material of the cover is a crystalline resin; the cover includes an amorphous alloy; and the cover is made to have a natural color.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: April 17, 2018
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Satoshi Arai, Shigeharu Tsunoda, Shinobu Tashiro, Akira Uenodan, Shinya Igarashi
  • Patent number: 9940071
    Abstract: A memory system includes a non-volatile memory and a controller circuit. The controller circuit is configured to carry out an atomic write operation in the non-volatile memory in response to an atomic write command, and selectively carry out one of a first operation and a second operation corresponding to address mapping between a logical address and a physical address of the non-volatile memory, along with the atomic write operation. When the first operation is selected, the controller circuit starts to update the address mapping after receiving a notification that writing of all data of the atomic write operation has been completed. When the second operation is carried out, the controller circuit starts to update the address mapping before receiving the notification.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: April 10, 2018
    Assignee: Toshiba Memory Corporation
    Inventors: Hiroyuki Nemoto, Shunitsu Kohara, Kazuya Kitsunai, Satoshi Arai
  • Publication number: 20180060228
    Abstract: A storage device includes a nonvolatile memory, and a controller configured to perform, in response to commands from the host device, a read operation and a write operation on the nonvolatile memory. The controller divides a logical address space of the storage device into a plurality of subspaces and manages a priority value for each of the subspaces, the priority values of the subspaces determining an order for setting up the subspaces upon start-up of the storage device.
    Type: Application
    Filed: August 24, 2017
    Publication date: March 1, 2018
    Inventors: Satoshi ARAI, Shunitsu KOHARA, Kazuya KITSUNAI, Yoshihisa KOJIMA, Hiroyuki NEMOTO
  • Patent number: 9899052
    Abstract: A recording method including: emitting laser light from an optical fiber array to record an image formed of writing units with moving a recording target and the optical fiber array relatively using a recording device including a plurality of laser light-emitting elements and an emitting unit including the optical fiber array, in which a plurality of optical fibers configured to guide laser light emitted from the laser light-emitting elements are aligned, wherein a maximum length of the writing unit along a sub-scanning direction is controlled with set values of: a duty ratio and a cycle of a pulse signal input to the emitting unit; recording energy applied to the recording target; and a spot diameter of the laser light, to record with overlapping an edge of the writing unit with an edge of the adjacent writing unit in the sub-scanning direction.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: February 20, 2018
    Assignee: RICOH COMPANY, LTD.
    Inventors: Satoshi Arai, Yoshihiko Hotta, Kazuyuki Uetake, Ichiro Sawamura, Tomomi Ishimi, Yasuroh Yokota
  • Patent number: 9880034
    Abstract: Provided is a low-cost flow sensor which improves productivity while maintaining high quality and high reliability. This flow sensor is provided with a housing, a cover, a circuit chamber sealed between these and housing electronic components or wiring, and a subpassage through which the fluid flows that is to be detected, and is characterized in that the welding width of a first welded portion forming the circuit chamber is greater than the welding width of a part of the second welded portion forming the subpassage unit.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: January 30, 2018
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Satoshi Arai, Shigeharu Tsunoda, Shinobu Tashiro, Takeshi Morino
  • Patent number: 9880040
    Abstract: Provided is a welding structure which enables external visual checks and has improved stability of bonding properties at a laser weld between a cover and a housing of this flow sensor. This flow sensor is provided with a housing, a cover, a circuit chamber sealed between these and housing electronic components or wiring, and a subpassage through which the fluid flows that is to be sensed, and is characterized in that at least the part near the gate section of the cover that transmits the laser is thinner than the other parts that transmit the laser.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: January 30, 2018
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Satoshi Arai, Shigeharu Tsunoda, Shinobu Tashiro, Takeshi Morino
  • Publication number: 20180021596
    Abstract: This multileaf collimator is provided with multiple leaves which limit the area irradiated by a radiation beam and which are arranged in the thickness direction. Each of the leaves is provided with a protruded portion which is formed protruding towards a first surface of the leaf, a depressed portion which is formed in the second surface of the leaf and into which the protruded portion formed on another leaf is inserted, a first curved surface which is formed between the first surface of the leaf and the lateral surface of the protruded portion, and a second curved surface which is formed between the second surface of the leaf and the lateral surface of the depressed portion.
    Type: Application
    Filed: January 29, 2015
    Publication date: January 25, 2018
    Applicant: Hitachi, Ltd.
    Inventors: Satoshi ARAI, Akihiro MIYAMOTO
  • Patent number: D814001
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: March 27, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Satoshi Arai, Jangryul Rim
  • Patent number: D820793
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: June 19, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Satoshi Arai, Jangryul Rim, Hirofumi Mori
  • Patent number: D849910
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: May 28, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Satoshi Arai, Jangryul Rim