Patents by Inventor Takashi Nakahara

Takashi Nakahara 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: 10287380
    Abstract: Provided are a break-resistant copolymer having high transparency and heat resistance and also having a high tensile strain at break, and a molded article. A copolymer contains 80% by mass to 98% by mass of structural units derived from a methacrylic ester monomer and 2% to 10% by mass of ester structural units derived from a cyclic ketene acetal monomer. The copolymer has a weight average molecular weight of 80,000 or more and a molecular weight distribution of 1.75 to 3.80.
    Type: Grant
    Filed: January 7, 2015
    Date of Patent: May 14, 2019
    Assignee: KURARAY CO., LTD.
    Inventors: Atsuhiro Nakahara, Hiroshi Ozawa, Takashi Fukumoto, Nobutaka Hiraoka
  • Publication number: 20180358137
    Abstract: A flow damper including a cylindrical vortex chamber, a small flow-rate pipe connected to a peripheral plate of the vortex chamber along a tangential direction, a large flow-rate pipe connected to the peripheral plate with a predetermined angle with respect to the small flow-rate pipe, an outlet pipe connected to an outlet formed in a central part of the vortex chamber, and a pressure equalization pipe with respective ends being connected to the peripheral plate on opposite sides of the outlet and at positions closer to a connection portion between the small flow-rate pipe and the large flow-rate pipe than positions facing each other, putting the outlet therebetween. The pressure equalization pipe is arranged with at least a part thereof is located at a higher position than a top plate of the vortex chamber, and an outgassing hole is provided at an uppermost part of the pressure equalization pipe.
    Type: Application
    Filed: January 27, 2017
    Publication date: December 13, 2018
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Masamichi Iino, Shigeto Hirai, Taiki Asahara, Takafumi Ogino, Akira Kirita, Akihiro Toda, Hideyuki Sakata, Yutaka Tanaka, Setsuo Tokunaga, Takashi Nakahara, Takanori Okazaki
  • Patent number: 10098215
    Abstract: A learning unit in learning mode generates a cluster from a cluster analysis of data formed from frequency constituent data and state data, obtained from a sensor unit. An abnormality calculation unit computes, as abnormalities, the minimum values among distances to surfaces of the clusters of the data formed from the frequency constituent data and the state data, obtained when in predictive fault indicator sensing mode. A predictive fault indicator determination unit determines a predictive fault indicator of an X-ray tube by comparing the abnormalities with a predetermined threshold.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: October 9, 2018
    Assignee: Hitachi, Ltd.
    Inventors: Takashi Nakahara, Shinya Yuda, Takanori Aono, Tetsu Inahara, Yoshitaka Seki, Kouji Akita, Kiyomi Abe
  • Publication number: 20180218795
    Abstract: To include a cylindrical vortex chamber 35, a small flow-rate pipe 37 connected to a peripheral plate 35C of the vortex chamber 35 along a tangential direction thereof, a large flow-rate pipe 36 connected to the peripheral plate 35C with a predetermined angle with respect to the small flow-rate pipe 37, an outlet pipe connected to an outlet 39 formed in a central part of the vortex chamber 35, and a straightening plate 50 that is arranged in a part between the outlet 39 and the peripheral plate 35C of the vortex chamber 35, and when jets flow into the vortex chamber 35 from the small flow-rate pipe 37 and the large flow-rate pipe 36, straightens impinging jets from the small flow-rate pipe 37 and from the large flow-rate pipe 36 having flowed into the vortex chamber 35 toward the outlet 39.
    Type: Application
    Filed: January 27, 2017
    Publication date: August 2, 2018
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Hideyuki Sakata, Shigeto Hirai, Taiki Asahara, Takafumi Ogino, Akira Kirita, Akihiro Toda, Masamichi Iino, Toshihiro Sato, Yutaka Tanaka, Takanori Okazaki, Takashi Nakahara
  • Publication number: 20170188443
    Abstract: A learning unit in learning mode generates a cluster from a cluster analysis of data formed from frequency constituent data and state data, obtained from a sensor unit. An abnormality calculation unit computes, as abnormalities, the minimum values among distances to surfaces of the clusters of the data formed from the frequency constituent data and the state data, obtained when in predictive fault indicator sensing mode. A predictive fault indicator determination unit determines a predictive fault indicator of an X-ray tube by comparing the abnormalities with a predetermined threshold.
    Type: Application
    Filed: April 27, 2015
    Publication date: June 29, 2017
    Inventors: Takashi NAKAHARA, Shinya YUDA, Takanori AONO, Tetsu INAHARA, Yoshitaka SEKI, Kouji AKITA, Kiyomi ABE
  • Publication number: 20140278088
    Abstract: A navigation device includes a map display means for displaying a large-area map screen showing a large-area map and displaying an enlarged map screen showing a partial enlarged map obtained by enlarging a partial region of the large-area map in superposition on the large-area map screen; a speed calculation means for calculating a speed pertaining to movement of the enlarged map screen; an enlarged map creation means for creating an enlarged map obtained by enlarging a predetermined region including the partial region of the large-area map based on vector data of a detailed map obtained by enlarging the large-area map; and a selection means for selecting the partial region as the partial enlarged map when the speed is no lower than a reference speed and selecting a region of the enlarged map, corresponding to the partial region, as the partial enlarged map when the speed is lower than it.
    Type: Application
    Filed: October 1, 2012
    Publication date: September 18, 2014
    Applicant: Hitachi, Ltd.
    Inventors: Shigeru Matsuo, Takashi Nakahara
  • Patent number: 8803905
    Abstract: A display control device includes: a transparent color information storage unit that stores transparent color information; a run-length counter that calculates a run-length specifying the number of consecutive pixels having the same color information; a combination calculation unit that combines the image data for the plurality of display layers; and a combined image display unit that outputs the combined image data to a display device. If the color information for a total of run-length pixels calculated by the run-length counter is a transparent color, the combination calculation unit performs combination by ignoring the image data for the total number run-length of consecutive pixels.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: August 12, 2014
    Assignee: Clarion Co., Ltd.
    Inventors: Shigeru Matsuo, Tadashi Kamiwaki, Takashi Nakahara
  • Publication number: 20120162243
    Abstract: A display control device includes: a transparent color information storage unit that stores transparent color information; a run-length counter that calculates a run-length specifying the number of consecutive pixels having the same color information; a combination calculation unit that combines the image data for the plurality of display layers; and a combined image display unit that outputs the combined image data to a display device. If the color information for a total of run-length pixels calculated by the run-length counter is a transparent color, the combination calculation unit performs combination by ignoring the image data for the total number run-length of consecutive pixels.
    Type: Application
    Filed: December 21, 2011
    Publication date: June 28, 2012
    Applicant: Clarion Co., Ltd.
    Inventors: Shigeru MATSUO, Tadashi KAMIWAKI, Takashi NAKAHARA
  • Publication number: 20110265093
    Abstract: A computer system includes a plurality of processors, a shared resource being used by the processors, and a storage unit in which management information corresponding to the shared resource is stored. The management information includes a semaphore for each OS managing a task which runs on the processors, a queue in which information for specifying a processor which has requested acquisition of the shared resource is stored in series, and a resource counter indicating a remaining number of the shared resources which can be acquired. Each of the processors includes a counter obtaining section that obtains a value of the resource counter, an acquisition decision-making section that makes a decision as to whether or not the shared resource can be acquired, and a resource acquiring section that stores information for specifying the processor in the queue if decided that it can not be acquired.
    Type: Application
    Filed: April 26, 2011
    Publication date: October 27, 2011
    Applicant: Hitachi, Ltd.
    Inventors: Takashi NAKAHARA, Tadashi Kamiwaki, Shigeru Matsuo
  • Patent number: 7528533
    Abstract: A vibratory gyroscope including a vibrator (10) integrally having a plate-like body portion (11) spreading along a reference plane, three drive arms (12, 13, 14) extending in a first direction from the body portion along the reference plane, and two detection arms (15, 16) extending in a second direction opposite to the first direction from the body portion along the reference plane. The three drive arms are composed of two exciting drive arms (12, 13) that are excited in mutually opposite phases in the reference plane and a non-exciting drive arm (14) located between the two exciting drive arms. Each of the three drive arms has an arm width in a width direction along the reference plane and perpendicular to the first direction. Each of the two detection arms has an arm width greater than that of the drive arm in the width direction, thereby suppressing generation of vibrations along the reference plane.
    Type: Grant
    Filed: January 11, 2006
    Date of Patent: May 5, 2009
    Assignee: Japan Aviation Electronics Industry, Limited
    Inventors: Atsushi Ochi, Takeshi Inoue, Mitsuru Yamamoto, Kenji Kuramoto, Mitsuhiro Nakajima, Takeshi Hosokawa, Hiroyuki Takahashi, Takashi Nakahara
  • Publication number: 20080111451
    Abstract: A vibratory gyroscope including a vibrator (10) integrally having a plate-like body portion (11) spreading along a reference plane, three drive arms (12, 13, 14) extending in a first direction from the body portion along the reference plane, and two detection arms (15, 16) extending in a second direction opposite to the first direction from the body portion along the reference plane. The three drive arms are composed of two exciting drive arms (12, 13) that are excited in mutually opposite phases in the reference plane and a non-exciting drive arm (14) located between the two exciting drive arms. Each of the three drive arms has an arm width in a width direction along the reference plane and perpendicular to the first direction. Each of the two detection arms has an arm width greater than that of the drive arm in the width direction, thereby suppressing generation of vibrations along the reference plane.
    Type: Application
    Filed: January 11, 2006
    Publication date: May 15, 2008
    Inventors: Atsushi Ochi, Takeshi Inoue, Mitsuru Yamamoto, Kenji Kuramoto, Mitsuhiro Nakajima, Takeshi Hosokawa, Hiroyuki Takahashi, Takashi Nakahara
  • Publication number: 20070229540
    Abstract: There is provided an on-vehicle stereoscopic display device wherein the same graphics having different brightness levels are superimposed on display devices to represent the depth of a graphic. The device has a configuration such that information indicating a cross-sectional shape of a graphic to be stereoscopically displayed is generated, and based on the generated information indicating the cross-sectional shape, the graphic having the depth is transparently displayed from the front to the rear of the screen. It is, therefore, possible to provide the on-vehicle stereoscopic display device wherein levels of the depth of a graphic to be stereoscopically displayed do not depend on the number of display devices, there are fewer limitations over a position of an operator to watch the display, and the superior visibility is provided.
    Type: Application
    Filed: February 28, 2007
    Publication date: October 4, 2007
    Applicant: Xanavi Informatics Corporation
    Inventors: Takashi Nakahara, Shigeru Matsuo, Yoshitaka Atarashi, Hirohisa Miyazawa, Takashi Yoshimaru
  • Patent number: 7155322
    Abstract: A vehicle information specification determining function is built in the on-board terminal installed on a vehicle to determine the specification for vehicle information collection. An information center determines service charges according to the vehicle information specification determined by the vehicle information specification determining function.
    Type: Grant
    Filed: September 24, 2003
    Date of Patent: December 26, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Takashi Nakahara, Takeshi Inoue, Takayoshi Yokota, Takumi Tushiki, Kennichirou Yamane
  • Publication number: 20060167935
    Abstract: The invention provides an input support method and apparatus having the following merits in a communication-type navigation system. That is, when at least one character relevant to, for example, a destination is inputted from a navigation apparatus to make a search in a server system, it is possible to minimize time spent in waiting for a response from the server system. Accordingly, communication time is shortened, and a pleasant environment for input operation is realized by making the most of information inputted by a user. In the input support method in a communication-type navigation system, a navigation apparatus (1) and a server system (4) are connected via a communication network (3).
    Type: Application
    Filed: October 15, 2003
    Publication date: July 27, 2006
    Inventors: Yoshitaka Atarashi, Mariko Okude, Takashi Nakahara, Shigeru Matsuo, Yukihiro Kawamata
  • Publication number: 20060106534
    Abstract: In a communication type navigation system that downloads maps, the present invention provides a map data transmission method that can reduce time before guiding is started. A map provision server searches for a traveling route connecting a starting place corresponding to current position information received from an on-vehicle terminal and a destination corresponding to destination information. The server generates guidance information for guiding the vehicle along the searched traveling route and generates a route vicinity map along the traveling route. The server generates traveling route information comprising the searched traveling route and the guidance information, and plural map information blocks into which the route vicinity map containing map information is divided along the traveling route, assigns transmission priority levels to the map information blocks, and transmits the map information blocks according to the transmission priority levels after transmitting the traveling route information.
    Type: Application
    Filed: October 22, 2003
    Publication date: May 18, 2006
    Inventors: Yukihiro Kawamata, Mariko Okude, Manabu Kato, Yoshitaka Atarashi, Shigeru Matsuo, Takashi Nakahara, Masaaki Tanizaki, Kishiko Maruyama, Shigeru Shimada
  • Patent number: 7023332
    Abstract: An on-vehicle breakdown-warning report system is disclosed. an occurrence of break-down is detected and judged based on a signal in an electronic control system installed on a control apparatus for an engine ignition system, a charging system, an engine fuel system, a engine cooling system, a power transmission system, and an oil lubricating system of an automobile or a diagnosis display system; and a diagnostic data is sent to an information terminal device of a diagnosis and maintenance agency or a service company having a diagnosis and maintenance agency as a contents information by using an on-vehicle mobile communication apparatus, and an action for an emergency measures and a maintenance schedule is asked.
    Type: Grant
    Filed: August 26, 2005
    Date of Patent: April 4, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Masahiko Saito, Kozo Nakamura, Toshio Manaka, Takashi Nakahara
  • Publication number: 20060020380
    Abstract: An on-vehicle breakdown-warning report system is disclosed. an occurrence of break-down is detected and judged based on a signal in an electronic control system installed on a control apparatus for an engine ignition system, a charging system, an engine fuel system, a engine cooling system, a power transmission system, and an oil lubricating system of an automobile or a diagnosis display system; and a diagnostic data is sent to an information terminal device of a diagnosis and maintenance agency or a service company having a diagnosis and maintenance agency as a contents information by using an on-vehicle mobile communication apparatus, and an action for an emergency measures and a maintenance schedule is asked.
    Type: Application
    Filed: August 26, 2005
    Publication date: January 26, 2006
    Applicant: HITACHI, LTD.
    Inventors: Masahiko Saito, Kozo Nakamura, Toshio Manaka, Takashi Nakahara
  • Patent number: 6972669
    Abstract: An on-vehicle breakdown-warning report system is disclosed. an occurrence of break-down is detected and judged based on a signal in an electronic control system installed on a control apparatus for an engine ignition system, a charging system, an engine fuel system, a engine cooling system, a power transmission system, and an oil lubricating system of an automobile or a diagnosis display system; and a diagnostic data is sent to an information terminal device of a diagnosis and maintenance agency or a service company having a diagnosis and maintenance agency as a contents information by using an on-vehicle mobile communication apparatus, and an action for an emergency measures and a maintenance schedule is asked.
    Type: Grant
    Filed: October 20, 2003
    Date of Patent: December 6, 2005
    Assignee: Hitachi, Ltd.
    Inventors: Masahiko Saito, Kozo Nakamura, Toshio Manaka, Takashi Nakahara
  • Patent number: 6801729
    Abstract: An image forming apparatus has an image forming unit and a film-heat-type fuser over which a sheet with an unfixed toner image passes and on which are positioned a first temperature-measuring device centered on the fuser so that a sheet always passes over that device and a second temperature measuring device disposed away from the center so that large sheets will pass over the second temperature measuring device and small sheets will not pass over the device when being conveyed correctly. The device also has a temperature control mechanism, a sheet size detector and throughput control, so that the throughput control changes throughput when the sheet size detector determines that a small sheet is being conveyed and the difference between the temperatures of the first and second temperature measuring devices is less than a predetermined value as the sheet passes over the fuser.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: October 5, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventors: Atsushi Wada, Takashi Nakahara, Koichi Otaka, Yuichi Seki, Hiroshi Takazawa, Takashi Sekiguchi
  • Publication number: 20040133527
    Abstract: An estimation system has a storage unit which stores an estimation function for calculating a unit component price of a harness based on a designated processing condition, an input unit which acquires the processing condition from an estimation requester, and a control unit which calculates the unit component price of the harness based on the processing condition designated by the estimation requester and the estimation function read out from the storage unit, and stores the calculated unit component price in the storage unit.
    Type: Application
    Filed: September 22, 2003
    Publication date: July 8, 2004
    Inventors: Michikazu Sakurai, Takashi Nakahara, Daiho Sakuragi, Yohichiroh Mukunoki, Hideyuki Fukuma, Yoshinori Takekoshi, Masayuki Ueda, Fuminari Yashiro, Jun Sugawara, Katsumi Otsuka