Patents by Inventor Kazuo Takada

Kazuo Takada 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: 20120001584
    Abstract: A motor control device for a stepping motor including at least two phase coils and a rotor is provided. The motor control device includes a control unit which applies a pulse voltage subjected to pulse width modulation, to each of the at least two phase coils, a back electromotive voltage measuring unit which provides a halt period to temporarily halt the application of the pulse voltage to one of the phase coils when a direction of the coil current flowing in the one phase coil is switched, and which measures a back electromotive voltage induced in the one phase coil during the halt period, an out-of-step detecting unit which detects an out-of-step of the stepping motor if the measured back electromotive voltage satisfies a predetermined criterion, and a voltage control unit which sets a voltage for all phase coils other than the one phase coil to a constant voltage during the halt period.
    Type: Application
    Filed: June 29, 2011
    Publication date: January 5, 2012
    Applicant: MINEBEA CO., LTD.
    Inventors: Kazuo TAKADA, Takayuki MATSUI
  • Publication number: 20110205944
    Abstract: A communication device has a first communication section that supports a first communication mode having a low communication rate and a second communication section that supports a second communication mode having a higher communication rate than the first communication mode. The communication device includes a packet generation section and a communication control section. The packet generation section generates a first portion containing authentication information used for connection authentication for the second communication mode and a second portion other than the first portion. The communication control section performs control to cause the first communication section to transmit the first portion and to cause the second communication section to transmit the second portion after the connection authentication succeeds using the authentication information contained in the first portion.
    Type: Application
    Filed: May 5, 2011
    Publication date: August 25, 2011
    Applicant: Sony Corporation
    Inventors: Naoki Miyabayashi, Yoshihiro Yoneda, Isao Soma, Kazuo Takada, Seiji Kuroda, Yasuharu Ishikawa, Masahiro Sueyoshi
  • Publication number: 20110173125
    Abstract: An information processing device includes: an exchange unit configured to exchange information concerning a communication state with, respect to a server using a first communication with another information processing device which becomes the other party of communication in a second communication; and a method selection unit configured to select a transmission/reception method of content data with respect to another information processing device using the second communication based on the information exchanged by the exchange unit in accordance with the communication state of each device with respect to the server using the first communication.
    Type: Application
    Filed: January 5, 2011
    Publication date: July 14, 2011
    Applicant: Sony Corporation
    Inventors: Naoki Miyabayashi, Yasuharu Ishikawa, Kazuo Takada, Tomoyuki Nakayama, Takayuki Inamori, Masahiro Sueyoshi
  • Patent number: 7948925
    Abstract: A communication device has a first communication section that supports a first communication mode having a low communication rate and a second communication section that supports a second communication mode having a higher communication rate than the first communication mode. The communication device includes a packet generation section and a communication control section. The packet generation section generates a first portion containing authentication information used for connection authentication for the second communication mode and a second portion other than the first portion. The communication control section performs control to cause the first communication section to transmit the first portion and to cause the second communication section to transmit the second portion after the connection authentication succeeds using the authentication information contained in the first portion.
    Type: Grant
    Filed: February 9, 2009
    Date of Patent: May 24, 2011
    Assignee: Sony Corporation
    Inventors: Naoki Miyabayashi, Yoshihiro Yoneda, Isao Soma, Kazuo Takada, Seiji Kuroda, Yasuharu Ishikawa, Masahiro Sueyoshi
  • Publication number: 20100077031
    Abstract: An information processing device includes: a first receiving unit to receive, from a first other information processing device, equipment information of a second other information processing device that differs from the first other information processing device, via a first communication and first connecting information useful for connecting with the second other information processing device by a second communication that differs from the first communication; a first transmitting unit to transmit second connection information that is useful for connecting with the device itself by the second communication to the first other information processing device, via the first communication; and a second receiving unit to receive content data transmitted from the second other information processing device by the second communication, based on the first connection information and the second connection information.
    Type: Application
    Filed: September 18, 2009
    Publication date: March 25, 2010
    Applicant: SONY CORPORATION
    Inventors: Yoshihiro YONEDA, Naoki Miyabayashi, Isao Soma, Seiji Kuroda, Yasuharu Ishikawa, Kazuo Takada
  • Publication number: 20100075605
    Abstract: An information processing device has a first transmitting unit to connect a first other information processing device and second other information processing device and transmit the content via the connection; a first receiving unit to receive a master request that requests an upgrade to a master from the first other information processing device; a second transmitting unit to transmit the identification information of the first other information processing device to the second information processing device upon receiving the master request; a disconnecting unit to disconnect the connection with the second other information processing device after transmitting the identification information of the first other information processing device; and a second receiving unit to receive content via the connection from the first other information processing device.
    Type: Application
    Filed: September 17, 2009
    Publication date: March 25, 2010
    Applicant: SONY CORPORATION
    Inventors: Yoshihiro YONEDA, Naoki Miyabayashi, Isao Soma, Seiji Kuroda, Yasuharu Ishikawa, Kazuo Takada
  • Publication number: 20100009711
    Abstract: There is provided a communication apparatus including: a first communication unit having a first communication range; a second communication unit having a second communication range wider than the first communication range; a control unit which transmits a request signal for starting communication via the second communication unit from the first communication unit to another communication apparatus, and transmits authentication information from the second communication unit to the another communication apparatus in the case where it is determined that communication with the another communication apparatus via the second communication unit is possible based on a response signal after the first communication unit receives the response signal in response to the request signal; and a notification unit which notifies a user after the second communication unit receives a result of authentication based on the authentication information.
    Type: Application
    Filed: July 14, 2009
    Publication date: January 14, 2010
    Applicant: SONY CORPORATION
    Inventors: Kazuo Takada, Isao Soma, Seiji Kuroda, Yasuharu Ishikawa, Yoshihiro Yoneda, Naoki Miyabayashi
  • Publication number: 20090305630
    Abstract: An information management apparatus includes a communication unit configured to receive, from a plurality of communication processing apparatuses, a plurality of pieces of communication history data of near-field communication performed in the plurality of communication processing apparatuses; a data comparison unit configured to perform comparison of the plurality of pieces of communication history data received by the communication unit; and a data registration unit configured to register a plurality of pieces of user information associated with the plurality of communication processing apparatuses as a group in a database on condition that it is verified by the data comparison unit, in accordance with the plurality of pieces of communication history data of the near-field communication, that near-field communication has been performed between the plurality of communication processing apparatuses.
    Type: Application
    Filed: June 8, 2009
    Publication date: December 10, 2009
    Applicant: SONY CORPORATION
    Inventors: Seiji Kuroda, Isao Soma, Yasuharu Ishikawa, Kazuo Takada, Yoshihiro Yoneda, Naoki Miyabayashi
  • Publication number: 20090256515
    Abstract: In a method of detecting synchronization loss in a stepping motor, a means for applying either control current or control voltage to a coil of each phase to thereby drive a stepping motor and a means for individually measuring a back EMF voltage induced at the coil of each phase are employed, wherein application of either the control current or the control voltage at the coil of each phase is halted by turns phase by phase for such a short time period as not to affect rotation of a rotor of the stepping motor at a predetermined timing within one step period of the rotor, the back EMF voltage at the coil is measured during the short time period, and the stepping motor is judged to lose synchronization when the measurement result of the back EMF voltage at the coil of at least one phase satisfies a detection criterion.
    Type: Application
    Filed: March 25, 2009
    Publication date: October 15, 2009
    Applicant: MINEBEA CO., LTD.
    Inventors: Kazuo Takada, Takayuki Matsui, Haruka Miyaji
  • Publication number: 20090253417
    Abstract: There is provided an information processing system including a service provider unit, a communication terminal and an information processing unit. The communication terminal includes a terminal first communication section, a terminal second communication section to communicate with the information processing unit through a first communication channel, a terminal third communication section to communicate with the information processing unit through a second communication channel, and a terminal communication control section.
    Type: Application
    Filed: March 26, 2009
    Publication date: October 8, 2009
    Applicant: Sony Corporation
    Inventors: Isao Soma, Naoki Miyabayashi, Yoshihiro Yoneda, Seiji Kuroda, Yasuharu Ishikawa, Kazuo Takada
  • Publication number: 20090227282
    Abstract: A communication device has a first communication section that supports a first communication mode having a low communication rate and a second communication section that supports a second communication mode having a higher communication rate than the first communication mode. The communication device includes a packet generation section and a communication control section. The packet generation section generates a first portion containing authentication information used for connection authentication for the second communication mode and a second portion other than the first portion. The communication control section performs control to cause the first communication section to transmit the first portion and to cause the second communication section to transmit the second portion after the connection authentication succeeds using the authentication information contained in the first portion.
    Type: Application
    Filed: February 9, 2009
    Publication date: September 10, 2009
    Applicant: Sony Corporation
    Inventors: Naoki MIYABAYASHI, Yoshihiro YONEDA, Isao SOMA, Kazuo TAKADA, Seiji KURODA, Yasuharu ISHIKAWA, Masahiro SUEYOSHI
  • Publication number: 20090222659
    Abstract: A communication device for performing communication by employing first and second communication units, includes: a reception unit for receiving a communication packet including a random number generated for every connection with another communication device, a certificate calculated with the random number, and authentication method information indicating whether or not an authentication method at the second communication unit is compatible with the public key system, through the first communication unit; and a method determining unit for determining whether or not an originator of the communication packet accepts public key encryption based on the authentication method information included in the communication packet; wherein in a case of the method determining unit determining that the originator of the communication packet does not accept the public key system, the random number included in the communication packet is replied to the originator as the identification information of the device itself.
    Type: Application
    Filed: February 13, 2009
    Publication date: September 3, 2009
    Applicant: Sony Corporation
    Inventors: Naoki Miyabayashi, Yoshihiro Yoneda, Isao Soma, Seiji Kuroda, Yasuharu Ishikawa, Kazuo Takada, Masahiro Sueyoshi
  • Publication number: 20070148548
    Abstract: A non-aqueous electrolyte secondary battery includes a positive electrode 11 made of graphite powder and a negative electrode 13 made of lithium metal or a lithium-intercalatable/deintercalatable material. The positive electrode 11 and the negative electrode 13 are faced to each other with an electrolyte, containing a lithium salt, interposed in between. The positive electrode 11 has a carbon-derived absorption peak which appears within a range of 3200 gauss to 3400 gauss in an electron spin resonance method in which measurement is performed using an X band. A relative ratio (?H40K/?H296K) of the full width of half maximum intensity ?H40K of the peak measured at a temperature of 40 K to the full width of half maximum intensity ?H296K of the peak measured at a temperature of 296 K is 2.1 or more. Accordingly, it is possible to provide the non-aqueous electrolyte secondary battery which prevents degradation of the capacity in charge/discharge cycles after performing high temperature floating charge.
    Type: Application
    Filed: January 2, 2007
    Publication date: June 28, 2007
    Applicant: FDK CORPORATION
    Inventors: Takashi Suzuki, Toshiyuki Miwa, Hiroto Sagisaka, Yusuke Tamura, Kazuo Takada, Yasuo Suzuki
  • Patent number: D403115
    Type: Grant
    Filed: July 21, 1997
    Date of Patent: December 22, 1998
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Yosuke Tanaka, Kazuo Takada
  • Patent number: D404246
    Type: Grant
    Filed: July 8, 1997
    Date of Patent: January 19, 1999
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Toyomi Arita, Shigehiro Uemura, Kazuo Takada
  • Patent number: D411785
    Type: Grant
    Filed: June 25, 1998
    Date of Patent: July 6, 1999
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Shigehiro Uemura, Toyomi Arita, Kazuo Takada
  • Patent number: D417649
    Type: Grant
    Filed: May 12, 1997
    Date of Patent: December 14, 1999
    Assignee: Phillip Morris Incorporated
    Inventors: Charles T. Higgins, Shunichi Kuriyama, Takahide Takeda, Masato Sano, Shigehito Uemura, Kazuo Takada, Tomonori Sakamoto
  • Patent number: D420248
    Type: Grant
    Filed: June 26, 1998
    Date of Patent: February 8, 2000
    Assignee: Sanyo Electric Co., Ltd
    Inventors: Shigehiro Uemura, Toyomi Arita, Kazuo Takada
  • Patent number: D422113
    Type: Grant
    Filed: May 12, 1997
    Date of Patent: March 28, 2000
    Assignee: Philip Morris Incorporated
    Inventors: Charles T. Higgins, Shunichi Kuriyama, Takahide Takeda, Masato Sano, Shigehito Uemura, Kazuo Takada, Tomonori Sakamoto
  • Patent number: D433532
    Type: Grant
    Filed: October 9, 1998
    Date of Patent: November 7, 2000
    Assignee: Philip Morris Incorporated
    Inventors: Charles T. Higgins, Shunichi Kuriyama, Takahide Takeda, Masato Sano, Shigehito Uemura, Kazuo Takada, Tomonori Sakamoto