Patents by Inventor Hiroshi Fujita

Hiroshi Fujita 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: 20150358844
    Abstract: A wireless communication method includes starting, at a first wireless communication apparatus and a second wireless communication apparatus respectively, transmission of a wireless signal, when received power of a wireless signal transmitted from another wireless communication apparatus is smaller than or equal to a carrier sense threshold value, transmitting, from the first wireless communication apparatus, a wireless signal, and determining, at the second wireless communication apparatus, whether or not to receive a data signal following a first signal included in the wireless signal received from the first wireless communication apparatus, based on at least one of received power of the first signal and a transmission destination included in the wireless signal.
    Type: Application
    Filed: August 21, 2015
    Publication date: December 10, 2015
    Applicant: FUJITSU LIMITED
    Inventors: Yun WEN, Makoto YOSHIDA, Hiroshi FUJITA
  • Patent number: 9198052
    Abstract: An apparatus estimates an influence rate at which transmission of data to a first wireless communication device is influenced by a second wireless communication device that is undetectable by means of carrier sense. The apparatus determines transmission quantity based on the estimated influence rate, and detects a congestion state of the first wireless communication device. The apparatus transmits data to the first wireless communication device according to the determined transmission quantity when congestion for the first wireless communication device is detected.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: November 24, 2015
    Assignee: FUJITSU LIMITED
    Inventors: Yun Wen, Hiroshi Fujita, Makoto Yoshida
  • Publication number: 20150268852
    Abstract: An electronic device that increases both visual perceptibility and selectability of executable programs. A display is a display with an elongated shape whose display surface includes a first region and a second region aligned in a longitudinal direction. In the first region, only an image that corresponds to a program that is specified as the main program is displayed. In the second region, images that correspond to sub-programs are displayed to be lined up in the longitudinal direction. The image includes an execution image of the program that is specified as the main program.
    Type: Application
    Filed: June 3, 2015
    Publication date: September 24, 2015
    Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Yu OTSUKA, Hiroshi FUJITA, Kazuhiro AIHARA, Goro HISATAKE, Takashi ISOBE
  • Patent number: 9144006
    Abstract: In a gateway (GW), when interference is detected by an interference detection unit, a frame generation unit sends an interference broadcast signal. A terminal receives the interference broadcast signal sent at a maximum transmission power from the GW to which the terminal belongs. The interference broadcast signal includes information on a planned transmission power value that is a transmission power value of a data signal in the GW and is smaller than the maximum transmission power value. The interference broadcast signal is sent at the maximum transmission power value.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: September 22, 2015
    Assignee: FUJITSU LIMITED
    Inventors: Hiroshi Fujita, Kazuyuki Ozaki, Yun Wen
  • Patent number: 9137860
    Abstract: A light bulb-shaped lamp according to the present invention includes: a board on which an LED is mounted; a circuit board on which a drive circuit that turns on the LED is mounted; output wires for supplying power for turning on the LED from the drive circuit to the LED; a pedestal; and a potential-stabilizing wire electrically connecting the pedestal to a circuit ground of the drive circuit.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: September 15, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Hiroshi Fujita, Kazuhiko Itoh, Yoshiaki Hachiya, Kazuo Gouda
  • Patent number: 9116021
    Abstract: A sensor device includes a detector portion, plural metal terminals that transmit a detection signal from the detector portion, and a housing portion, which integrally supports the detector portion and metal terminals, formed from resin, leading end portions of the plural metal terminals configuring connector terminals, and the plural metal terminals being disposed with at least one portion thereof aligned when seen from the axial direction of the connector terminals, wherein protruding portions protruding in a direction differing from the axial direction of the connector terminals are provided on the metal terminals.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: August 25, 2015
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hiroshi Fujita, Mitsuhiro Ono, Hidenori Matano, Hiroshi Kobayashi, Shigeki Tsujii
  • Patent number: 9095025
    Abstract: A drive circuit is a drive circuit for turning on an LED and includes a self-excited inverter supplying power to the LED, wherein the self-excited inverter includes thermistors, and supplies, depending on temperature dependency of the thermistors, the first power value to the LED when a temperature is the first temperature, and the second power value to the LED when a temperature is the second temperature higher than the first temperature, and the second power value is smaller than the third power value that a circuit which is not provided with the thermistors and supplies the first power value to the LED when the temperature is a first temperature supplies to the LED when a temperature is the second temperature.
    Type: Grant
    Filed: January 22, 2014
    Date of Patent: July 28, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Hiroshi Fujita, Atsushi Utsubo, Kazuhiko Itoh
  • Patent number: 9090124
    Abstract: A bicycle hub axle adapter basically includes a hub axle adapter main body and at least one retaining member. The hub axle adapter main body is configured to be inserted into a bicycle hub having a hollow hub axle. The at least one retaining member is disposed on an external surface of the hub axle adapter main body for contacting an internal surface of the hollow hub axle.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: July 28, 2015
    Assignee: Shimano Inc.
    Inventor: Hiroshi Fujita
  • Publication number: 20150204730
    Abstract: An apparatus for detecting temperatures of power-conversion semiconductor elements, which is applicable to a system including a plurality of power-conversion semiconductor elements and a plurality of temperature signal outputs for outputting temperature signals correlated to temperatures of the respective semiconductor elements. In the apparatus, the temperature signal outputted from at least one of the temperature signal outputs is input directly to a microcomputer without passing through at least one input-output interface. The temperature signals outputted from the other two or more temperature signal outputs are input to a plurality of input ports of the at least one input-output interface sequentially connected to an output of the interface.
    Type: Application
    Filed: December 10, 2014
    Publication date: July 23, 2015
    Inventors: Osamu DAITOKU, Hiroshi FUJITA
  • Patent number: 9085197
    Abstract: A bicycle hub kit includes a hub axle, a hub shell, a bearing unit, first and second end nuts, and a retaining member. The bearing unit has a first ring, a second ring, and a plurality of rollers. The first and second end nuts are interchangeably coupled to an axle end of the hub axle. The retaining member retains an axial position of the first ring of the bearing unit with respect to the hub axle. The retaining member is disposed between the first ring of the bearing unit and one of the first and second end nuts. The first and second end nuts have first and second through holes, respectively. The second through hole of the second end nut has an inner diameter that is smaller than an inner diameter of the first through hole of the first end nut.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: July 21, 2015
    Assignee: Shimano Inc.
    Inventor: Hiroshi Fujita
  • Publication number: 20150185766
    Abstract: A wearable electronic device according to the present disclosure includes a first belt, front surface of the first belt being provided with a displaying unit having a curved display face; a second belt; a hinge that connects a first end of the first belt to a first end of the second belt. A shape of a space formed by the first and second belts is an elliptical shape when the device worn around a subject is viewed from a side. The hinge has higher flexibility than the first and second belts. The device has a first engagement unit provided at a second end and a rear surface of the first belt, and in a region where the elliptical shape has smaller curvature than other regions. The device has a second engagement unit provided at an outer side of the second belt and engaging with the first engagement unit.
    Type: Application
    Filed: December 22, 2014
    Publication date: July 2, 2015
    Inventors: YU OTSUKA, YUKINARI INOUE, HIRAKU HAMANAKA, MITSUAKI TERUI, HIROSHI FUJITA, GORO HISATAKE
  • Publication number: 20150151780
    Abstract: A ball screw includes: an end deflector; and a nut having a housing portion in which the end deflector is housed; in which the end deflector is formed of two or more division members, and at least one of the division members includes a protruding portion that contacts a wall surface forming the housing portion.
    Type: Application
    Filed: July 24, 2014
    Publication date: June 4, 2015
    Applicant: Showa Corporation
    Inventors: Hiroshi FUJITA, Ryota ITO
  • Publication number: 20150113473
    Abstract: An electronic device that increases both visibility and selectability of executable programs. The electronic device includes a touch panel display having an elongated shape, a memory storing programs, and a processor controlling program execution and the display. The touch panel includes a first display region and a second display region contiguous with and narrower than the first display region. The display displays an execution image of a first program in the first display region and an icon image of a second program in the second display region in a smaller display area than the execution image. When the processor detects contact at the icon image and detects that the contact moves towards the first display region, the processor causes the display to display an execution image of the second program in the first display region.
    Type: Application
    Filed: January 6, 2015
    Publication date: April 23, 2015
    Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Yu OTSUKA, Hiroshi FUJITA, Kazuhiro AIHARA, Goro HISATAKE, Takashi ISOBE
  • Patent number: 9005502
    Abstract: The object of the invention is to provide a mold that is capable of high-precision, stable patterning, and improved in terms of handleability as well, and a manufacturing method thereof. The mold of the invention has a pattern-formation surface defined by one surface, wherein the pattern-formation layer has a projection-and-depression structure area for patterning, and a base surface defined by another surface. At least the pattern-formation layer and the base surface each comprise a polydimethylsiloxane layer. Given a low-molecular-weight siloxane of a cyclic structure represented by [—Si(CH3)2O—]k where k is an integer of 3 to 20 inclusive, the polydimethylsiloxane layer positioned on the pattern-formation layer comprises a high-content polydimethylsiloxane layer containing the low-molecular-weight siloxane in a larger amount, and the polydimethylsiloxane layer positioned on the base surface comprises a low-content polydimethylsiloxane layer containing the low-molecular-weight siloxane in a smaller amount.
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: April 14, 2015
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Tsuyoshi Chiba, Hiroshi Fujita, Yuki Aritsuka
  • Patent number: 8979387
    Abstract: A bicycle hub assembly includes a hub axle, a hub shell, a bearing unit, a retaining member, a lock member and an intermediate member. The bearing unit has a first ring that is coupled to the hub axle, a second ring that is coupled to the hub shell, and a plurality of rollers that is disposed between the first and second rings. The retaining member is coupled to the first ring and retains an axial position of the first ring with respect to the hub axle. The retaining member includes a first attachment face. The lock member is fixedly coupled to the hub axle. The lock member includes a second attachment face that faces the first attachment face of the retaining member. The intermediate member is disposed between the first attachment face of the retaining member and the second attachment face of the lock member.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: March 17, 2015
    Assignee: Shimano Inc.
    Inventors: Seiji Mouri, Hiroshi Fujita
  • Patent number: 8978725
    Abstract: A bicycle wheel rim structure is provided with a rim, a cap and a tape. The rim includes a first annular side portion, a second annular side portion and an annular bridge portion extending between the first and second annular side portions. The bridge portion has at least one opening. The cap includes a base plate and a projection. The base plate overlies an outer rim surface of the annular bridge portion. The projection extends from the base plate into the at least one opening. The tape is attached to the outer rim surface of the annular bridge portion and overlying the base plate of the cap. The tape is dimensioned to cover an interface between a peripheral edge of the base plate of the cap and the outer rim surface of the annular bridge portion.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: March 17, 2015
    Assignee: Shimano Inc.
    Inventors: Kazuki Koshiyama, Hiroshi Fujita, Takashi Yaegashi
  • Patent number: 8964592
    Abstract: A wireless terminal device includes: a processor connected to a memory, configured to: acquire an estimated reception sensitivity of the wireless terminal device based on reception powers from a plurality of other wireless terminal devices with which the wireless terminal device performs random access communication, notify the other wireless terminal devices of the estimated reception sensitivity of the wireless terminal device, and select a transmission destination from among the other wireless terminal devices based on requested reception powers of the other wireless terminal devices, the requested reception powers being calculated based on estimated reception sensitivities of the other wireless terminal devices notified from the other wireless terminal devices.
    Type: Grant
    Filed: March 27, 2013
    Date of Patent: February 24, 2015
    Assignee: Fujitsu Limited
    Inventor: Hiroshi Fujita
  • Publication number: 20150009310
    Abstract: A V-LED emits violet narrowband light. A G-LED emits green light. A filter limits wavelengths of the green light to pass green narrowband light. The V-LED and the G-LED are turned on alternately to apply the violet narrowband light and the green narrowband light alternately to an object. A complementary color image sensor has a Cy pixel and an Mg pixel, which are sensitive to both the violet narrowband light and the green narrowband light. The complementary color image sensor images the object under illumination of the violet narrowband light to output a first image signal and images the object under illumination of the green narrowband light to output a second image signal. Based on the first and second image signals, a special image, in which surface structure (surface blood vessels) and subsurface structure (subsurface blood vessels) are isolated from each other, is produced and displayed on a monitor.
    Type: Application
    Filed: July 2, 2014
    Publication date: January 8, 2015
    Inventors: Yoshinori MORIMOTO, Hiroshi FUJITA
  • Patent number: 8913950
    Abstract: A radio relay method for relaying signal transmitted and received between a base station apparatus and a mobile station apparatus, the radio relay method including: selecting a first relay method amplifying and transmitting reception signal, or a second relay method decoding, error correcting, re-encoding, and transmitting the reception signal, based on each reception quality between the relay station apparatus and the base station apparatus and between the relay station apparatus and the mobile station apparatus; and relaying the signal based on the selected first relay method or the selected second relay method.
    Type: Grant
    Filed: May 2, 2014
    Date of Patent: December 16, 2014
    Assignee: Fujitsu Limited
    Inventor: Hiroshi Fujita
  • Patent number: 8865365
    Abstract: A connector is connected with a connector joint structure formed in separators in a fuel cell. The connector has: a connector casing; a terminal element that is provided in the connector casing and is configured to be in contact with an edge side of the separator and to be elastically deformed in an insertion direction of the connector that is orthogonal to a stacking direction of the separators, when the connector is connected with the connector joint structure; and an engagement element that is formed in the connector casing and is configured to engage with the connector joint structure and restrict motion of the connector in the insertion direction when the connector is connected with the connector joint structure.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: October 21, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yasuki Otake, Hiroshi Fujita