Patents by Inventor Hirotaka Morita

Hirotaka Morita 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).

  • Publication number: 20200249393
    Abstract: The optical fiber offered is capable of not only restraining the attenuation due to glass defects, but also reducing the increase of manufacturing cost. The optical fiber is made of silica glass and includes a core and a cladding. The cladding encloses the core and has a refractive index smaller than that of the core. When the core is divided into inner core and outer core at half of the radius of the core, the average chlorine concentration of the inner core is larger than that of the outer core. The core includes any of the alkali metal group.
    Type: Application
    Filed: April 15, 2020
    Publication date: August 6, 2020
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Hirotaka SAKUMA, Yoshiaki TAMURA, Keisei MORITA, Yuki KAWAGUCHI
  • Patent number: 10723650
    Abstract: An optical fiber preform includes a silica-glass core portion, and a cladding portion surrounding the core portion, the cladding portion being composed of a fluorine-containing silica glass having a lower refractive index than the core portion, the core portion including a first region that does not include the central axis thereof, the first region containing a first dopant selected from sodium, potassium, and compounds thereof, and a second region that includes the central axis, the second region containing a second dopant that reduces the viscosity of the silica glass, the second dopant having a diffusion coefficient of 1×10?12 cm2/s or more and less than the first dopant at 2,000° C. to 2,300° C., in which the entire core portion has an average first dopant concentration of 10 atomic ppm or more and 2,000 atomic ppm or less and an average second dopant concentration of 10 atomic ppm or more.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: July 28, 2020
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Keisei Morita, Yoshiaki Tamura, Hirotaka Sakuma
  • Publication number: 20200207566
    Abstract: An image forming apparatus includes a casing, an image forming unit movable between an accommodated position and a shifted position, an actuator, an urging member, a cam, and a contact portion. The actuator includes a pivot shaft and a protrusion protruding therefrom. The protrusion at a standby position crosses a conveyance path and is contactable with a sheet conveyed along the conveyance path. When the image forming unit is at the accommodated position, the contact portion and the cam contact each other and maintain the protrusion at the standby position against an urging force of the urging member. As the image forming unit moves from the accommodated position to the shifted position, the contact portion and the cam move away from each other such that the protrusion pivots from the standby position, by the urging force, to a retracted position at which the protrusion is retracted from the conveyance path.
    Type: Application
    Filed: December 26, 2019
    Publication date: July 2, 2020
    Inventors: Hirotaka TATEMATSU, Tetsuya MORITA, Koyo YAMAMOTO
  • Patent number: 10656329
    Abstract: The optical fiber offered is capable of not only restraining the attenuation due to glass defects, but also reducing the increase of manufacturing cost. The optical fiber is made of silica glass and includes a core and a cladding. The cladding encloses the core and has a refractive index smaller than that of the core. When the core is divided into inner core and outer core at half of the radius of the core, the average chlorine concentration of the inner core is larger than that of the outer core. The core includes any of the alkali metal group.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: May 19, 2020
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Hirotaka Sakuma, Yoshiaki Tamura, Keisei Morita, Yuki Kawaguchi
  • Patent number: 10581298
    Abstract: A robot arm apparatus includes a base structure, a first arm, a first actuator, and an assisting device. The first arm is pivotable relative to the base structure about a first pivot axis. The first actuator is configured to pivotally actuate the first arm relative to the base structure. The assisting device is configured to apply an assist rotational force to the first arm to assist the first actuator.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: March 3, 2020
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Kazuhiro Haniya, Hidenori Matsuura, Takashi Sanada, Osamu Harada, Shingo Tsutsumi, Hiroshi Saito, Daisuke Miyazaki, Ken Nakamura, Hirotaka Morita, Tomoharu Gyotoku, Kanji Takanishi, Takao Sumi, Shoji Kurihara
  • Patent number: 10550030
    Abstract: Provided is an optical fiber containing an alkali metal element or the like having a smaller diffusion coefficient than K and having a low Rayleigh scattering loss. An optical fiber is composed of silica glass and includes a core and a cladding arranged to surround the core which has a lower refractive index than the core. The core includes a first core including a central axis and a second core arranged to surround the first core. The average concentration of an alkali metal element or alkaline-earth metal element in the first core is 10 mol ppm or less. The average concentration of chlorine in the first core is 2000 mol ppm or more. The average concentration of an alkali metal element or alkaline-earth metal element in the second core is 10 mol ppm or more. The average concentration of chlorine in the second core is 10 to 600 mol ppm.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: February 4, 2020
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Hirotaka Sakuma, Yoshiaki Tamura, Keisei Morita
  • Publication number: 20190387613
    Abstract: A method for manufacturing a printed wiring board includes laminating a first insulative resin layer including low dielectric constant material on a first surface of a base substrate, forming a first conductive layer including a metal foil on the first insulative resin layer, laminating a second insulative resin layer including prepreg material on a second surface of the base substrate on the opposite side with respect to the first surface, and forming a second conductive layer including a metal foil on the second insulative resin layer. The first insulative resin layer is formed such that a dielectric constant of the first insulative resin layer is set lower than a dielectric constant of the second insulative resin layer.
    Type: Application
    Filed: August 30, 2019
    Publication date: December 19, 2019
    Applicant: IBIDEN CO., LTD.
    Inventors: Hirotaka TANIGUCHI, Ryuzo NISHIKAWA, Haruhiko MORITA
  • Publication number: 20190324195
    Abstract: The optical fiber offered is capable of not only restraining the attenuation due to glass defects, but also reducing the increase of manufacturing cost. The optical fiber is made of silica glass and includes a core and a cladding. The cladding encloses the core and has a refractive index smaller than that of the core. When the core is divided into inner core and outer core at half of the radius of the core, the average chlorine concentration of the inner core is larger than that of the outer core. The core includes any of the alkali metal group.
    Type: Application
    Filed: April 17, 2019
    Publication date: October 24, 2019
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Hirotaka SAKUMA, Yoshiaki TAMURA, Keisei MORITA, Yuki KAWAGUCHI
  • Publication number: 20190292089
    Abstract: The present embodiment relates to an optical fiber preform manufacturing method in which two or more kinds of alkali metal elements are diffused and doped to an inner surface of a glass pipe. The manufacturing method includes: a first drying step performed at a temperature equal to or lower than a lowest temperature among melting point temperatures of the alkali metal salt raw materials; and a second drying step performed at a temperature which is equal to or higher than a highest temperature among the melting point temperatures of the alkali metal salt raw materials and at which vapor pressures of the alkali metal salt raw materials are 2 mmHg or lower.
    Type: Application
    Filed: June 11, 2019
    Publication date: September 26, 2019
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Hirotaka SAKUMA, Yoshiaki TAMURA, Keisei MORITA
  • Publication number: 20190214649
    Abstract: A lithium ion secondary battery includes a positive electrode, a negative electrode, and an electrolyte. The negative electrode has a negative electrode current collector and a negative electrode active material layer provided on the negative electrode current collector. The negative electrode current collector satisfies: (D2/D1)?0.968 ??(1), D2?21.947*(X/100)?24.643 ??(2), 110?X?125 ??(3), and where D1 is a first displacement amount in a first piercing test at a first piercing speed of 0.1 mm/min or more; D2 is a second displacement amount in a second piercing test at a second piercing speed of less than 0.1 mm/min; and X is an expansion coefficient (%) of the negative electrode active material layer.
    Type: Application
    Filed: March 15, 2019
    Publication date: July 11, 2019
    Inventors: Yoshinori WAKUI, Koji MORITA, Hirotaka FUKUDOME
  • Publication number: 20170036293
    Abstract: A robot arm apparatus includes a base structure, a first arm, a first actuator, and an assisting device. The first arm is pivotable relative to the base structure about a first pivot axis. The first actuator is configured to pivotally actuate the first arm relative to the base structure. The assisting device is configured to apply an assist rotational force to the first arm to assist the first actuator.
    Type: Application
    Filed: July 20, 2016
    Publication date: February 9, 2017
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Kazuhiro HANIYA, Hidenori MATSUURA, Takashi SANADA, Osamu HARADA, Shingo TSUTSUMI, Hiroshi SAITO, Daisuke MIYAZAKI, Ken NAKAMURA, Hirotaka MORITA, Tomoharu GYOTOKU, Kanji TAKANISHI, Takao SUMI, Shoji KURIHARA
  • Patent number: 8711562
    Abstract: A robot control device according to one aspect of the embodiment includes a casing, a control circuit, and a fan. The control circuit is allocated in the inside of the casing and controls a robot to be controlled. In the casing, an intake portion is arranged in a top plate and one side plate, and an exhaust portion is arranged in a side plate adjacent to the side plate in which the intake portion is arranged. Further, the fan releases outside air sucked into the casing from the intake portion to the outside of the casing through the exhaust portion.
    Type: Grant
    Filed: January 26, 2012
    Date of Patent: April 29, 2014
    Assignee: Kabushiki Kaisha Yaskawa Denki
    Inventor: Hirotaka Morita
  • Publication number: 20120229979
    Abstract: A robot control device according to one aspect of the embodiment includes a casing, a control circuit, and a fan. The control circuit is allocated in the inside of the casing and controls a robot to be controlled. In the casing, an intake portion is arranged in a top plate and one side plate, and an exhaust portion is arranged in a side plate adjacent to the side plate in which the intake portion is arranged. Further, the fan releases outside air sucked into the casing from the intake portion to the outside of the casing through the exhaust portion.
    Type: Application
    Filed: January 26, 2012
    Publication date: September 13, 2012
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventor: Hirotaka MORITA
  • Patent number: 7957429
    Abstract: In order to increase the efficiency of large-capacity transmission, the continuity of divided signals generated by dividing a multiplexed signal is maintained and the original large-capacity multiplexed signal is restored. A signal dividing section divides a multiplexed signal to generate a plurality of divided signals in the STS or STM transmission interface format. A guarantee information adding section adds guarantee information for guaranteeing the continuity of the divided signals to each of the divided signals to generate transmission signals. A signal sending section sends the transmission signals via a transmission line in the transmission interface format. A signal receiving section receives the transmission signals. A signal restoring section restores the multiplexed signal by constructing the divided signals on the basis of the guarantee information.
    Type: Grant
    Filed: May 15, 2007
    Date of Patent: June 7, 2011
    Assignee: Fujitsu Limited
    Inventors: Koji Takeguchi, Ryuchi Moriya, Nobuhiro Rikitake, Hideki Matsui, Hirotaka Morita
  • Patent number: 7467122
    Abstract: While a base model has been determined for a product, in a system for performing a configuration designing operation of the product by setting a specification value to a specification item of the product, a product configuration design aiding system aids that a configuration designer can easily perform the configuration designing operation while following a restriction condition of a specification value of a specification item. A specification configuration information database is constructed which describes restriction conditions available for the specification values with respect to the specification item, and a configuration designing screen for inputting the specification values with respect to the specification item is displayed so as to conduct an input by the configuration designer.
    Type: Grant
    Filed: November 4, 2005
    Date of Patent: December 16, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Hirotaka Morita, Shingo Akasaka, Atsuhiro Ishida, Hiroshi Sora
  • Patent number: 7437699
    Abstract: When carrying out placement and routing processing on a layout object circuit using circuit connectivity information and power supply information, a first step of specifying a power supply terminal corresponding to a signal terminal designated for input level fixation by the circuit connectivity information on the basis of terminal correspondence information, a second step of specifying a power supply voltage corresponding to the power supply terminal specified at the first step on the basis of the power supply information, and a third step of routing a power supply line of the power supply voltage specified at the second step to the signal terminal for input level fixation and thus connecting them, are carried out. Thus, connection processing to connect the signal terminal for input level fixation and the power supply line can be automatically carried out and a design period for a multi-power supply semiconductor integrated circuit can be reduced.
    Type: Grant
    Filed: December 29, 2004
    Date of Patent: October 14, 2008
    Assignee: Fujitsu Limited
    Inventors: Hirotaka Morita, Shinji Fukasawa
  • Patent number: 7388876
    Abstract: In a method for transmitting data from a first node to a second node through an interlinking network including data transmission equipments: the data is transmitted from the first node to one of the data transmission equipments together with a first request for storage of the data in the one of the data transmission equipments; the data is stored in a storage unit provided in the one of the data transmission equipments in response to the first request; a second request for the data is transmitted from the second node to the one of the data transmission equipments; the data is read out from the storage unit in response to the second request; and the data is transmitted from the one of the data transmission equipments to the second node.
    Type: Grant
    Filed: April 3, 2002
    Date of Patent: June 17, 2008
    Assignee: Fujitsu Limited
    Inventors: Takuya Miyashita, Chiyoko Komatsu, Yoshinobu Takagi, Hirotaka Morita
  • Patent number: 7386515
    Abstract: Fee imposition system and method for application software, in which a software providing corporation can collect the fee without fail and charge a fair fee to a customer, and thereby the customer can use the application software with a paying method easy to estimate. The fee imposition system includes a server machine installed in a management center for managing the software, a client machine installed in a customer's office and connected with the server machine through a communication means, a ticket issue unit for issuing a ticket file on the basis of a predetermined fee schedule, and a data copy/writing unit for copying data corresponding to the information designated by the ticket file from a data source memory unit and recording the copied data on a data target memory unit.
    Type: Grant
    Filed: July 30, 2002
    Date of Patent: June 10, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Toshiyuki Sakuma, Haruhisa Nakamura, Masaki Honma, Yuichi Kaneko, Hirotaka Morita, Mitsuhiro Enomoto
  • Patent number: 7327745
    Abstract: A packet transmission system is disclosed. The system serves between terminal apparatuses that include a supervisory control circuit configured to transmit a supervisory signal in a direction opposite to the transmission direction of a main signal on each of and both of an upstream circuit and a downstream circuit. The packet transmission system transmits overhead information of a packet frame of the main signal of the upstream circuit and the downstream circuit using the supervisory control circuit of the downstream circuit and the upstream circuit, respectively.
    Type: Grant
    Filed: January 18, 2005
    Date of Patent: February 5, 2008
    Assignee: Fujitsu Limited
    Inventors: Osamu Takeuchi, Yuuji Kamura, Hideaki Arao, Hirotaka Morita, Hiroyuki Ohgaki
  • Patent number: 7315511
    Abstract: Disclosed herein is a SONET/SDH transmitter provided in a transmission system in which a SONET/SDH network and an IP network are connected with optical LAN-IF. The SONET/SDH transmitter has a redundancy transmission line structure consisting of two transmission lines, a K-packet processing section, and a transmitting section. The K-packet processing section is used for generating a specific byte (SONET K1/K2 byte) of data representing transmission-line switching control information about the transmission lines, packetizing the generated data, and outputting a packet. The transmitting section is used for transmitting the packet to the transmitter provided opposite through the transmission lines. This SONET/SDH transmitter further has a redundancy line switching section.
    Type: Grant
    Filed: March 26, 2002
    Date of Patent: January 1, 2008
    Assignee: Fujitsu limited
    Inventors: Hirotaka Morita, Yoshinobu Takagi, Takuya Miyashita, Chiyoko Komatsu