Patents by Inventor Seiji Okamoto

Seiji Okamoto 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: 20170201633
    Abstract: A terminal device including a detection unit that detects a sound, and an output unit that outputs information regarding a detection method of detecting the sound by the detection unit.
    Type: Application
    Filed: August 2, 2016
    Publication date: July 13, 2017
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Seiji OKAMOTO, Junichi HIROTA, Tsutomu UDAKA, Tomoyuki MITSUHASHI
  • Publication number: 20170201824
    Abstract: A terminal device includes a detection unit that detects sound, and an output unit that outputs information regarding a position of the detection unit relative to a target apparatus which is a target to detect the sound by the detection unit.
    Type: Application
    Filed: August 2, 2016
    Publication date: July 13, 2017
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Seiji OKAMOTO, Tsutomu UDAKA, Tomoyuki MITSUHASHI, Junichi HIROTA
  • Patent number: 9621299
    Abstract: The estimation of an amount of chromatic dispersion using a training signal sequence is possible. A transmission method includes: a training signal sequence generation step of generating, as training signal sequences, a plurality of signal sequences having power concentrated in a plurality of frequency bands, the power concentrated at different frequency bands; a training signal sequence selection step of selecting at least one training signal sequence from among the plurality of training signal sequences generated in the training signal sequence generation step, a signal multiplexing step of generating a signal sequence obtained by time-division multiplexing the training signal sequence selected in the training signal sequence selection step with a transmission data sequence, and an electrical-to-optical conversion step of transmitting the signal sequence generated in the signal multiplexing step as an optical signal.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: April 11, 2017
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Koichi Ishihara, Masato Mizoguchi, Tomoki Murakami, Tomoyoshi Kataoka, Yoshiaki Kisaka, Tadao Nakagawa, Etsushi Yamazaki, Seiji Okamoto, Kengo Horikoshi, Masahito Tomizawa, Riichi Kudo
  • Publication number: 20170070296
    Abstract: An optical signal transmission apparatus includes a modulation unit which modulates a transmission signal, a training signal sequence generation unit which generates a plurality of signal sequences having power concentrated in a plurality of different frequency bands, at least one of an amplitude and a phase of the plurality of signal sequences being modulated, as a training signal sequence, a signal multiplexing unit which appends the training signal sequence to the transmission signal, and an electro-optical conversion unit which converts a signal sequence obtained by appending the training signal sequence to the transmission signal into an optical signal and transmits the optical signal.
    Type: Application
    Filed: March 17, 2015
    Publication date: March 9, 2017
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Seiji OKAMOTO, Koichi ISHIHARA, Etsushi YAMAZAKI, Mitsuteru YOSHIDA, Tomoyoshi KATAOKA, Kazushige YONENAGA, Yoshiaki KISAKA, Masanori NAKAMURA, Masahito TOMIZAWA
  • Patent number: 9444483
    Abstract: A switch circuit includes: a sampling transistor including a source connected to an input node and a drain connected to an output node; a control circuit which is connected to a gate of the sampling transistor and configured to control turning on or off of the sampling transistor; a voltage holding circuit which is provided between the gate and the source of the sampling transistor and configured to maintain a voltage between the gate and the source of the sampling transistor constant when the sampling transistor is turned on; and a protection circuit which is provided in parallel to the control circuit and configured to lower a voltage that is applied to the gate of the sampling transistor when the sampling transistor makes a transition from on to off.
    Type: Grant
    Filed: December 24, 2015
    Date of Patent: September 13, 2016
    Assignee: SOCIONEXT INC.
    Inventor: Seiji Okamoto
  • Publication number: 20160226506
    Abstract: A switch circuit includes: a sampling transistor including a source connected to an input node and a drain connected to an output node; a control circuit which is connected to a gate of the sampling transistor and configured to control turning on or off of the sampling transistor; a voltage holding circuit which is provided between the gate and the source of the sampling transistor and configured to maintain a voltage between the gate and the source of the sampling transistor constant when the sampling transistor is turned on; and a protection circuit which is provided in parallel to the control circuit and configured to lower a voltage that is applied to the gate of the sampling transistor when the sampling transistor makes a transition from on to off.
    Type: Application
    Filed: December 24, 2015
    Publication date: August 4, 2016
    Inventor: Seiji OKAMOTO
  • Publication number: 20150372766
    Abstract: An increase in circuit scale is suppressed and a phase variation caused in a transmission path or the like is compensated for.
    Type: Application
    Filed: February 13, 2014
    Publication date: December 24, 2015
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Mitsuteru YOSHIDA, Etsushi YAMAZAKI, Seiji OKAMOTO, Hiroyuki UZAWA, Kengo HORIKOSHI, Koichi ISHIHARA, Takayuki KOBAYASHI, Yoshiaki KISAKA, Masahito TOMIZAWA, Naoki FUJIWARA, Tomoyoshi KATAOKA, Kazushige YONENAGA
  • Publication number: 20150341138
    Abstract: The estimation of an amount of chromatic dispersion using a training signal sequence is possible. A transmission method includes: a training signal sequence generation step of generating, as training signal sequences, a plurality of signal sequences having power concentrated in a plurality of frequency bands, the power concentrated at different frequency bands; a training signal sequence selection step of selecting at least one training signal sequence from among the plurality of training signal sequences generated in the training signal sequence generation step, a signal multiplexing step of generating a signal sequence obtained by time-division multiplexing the training signal sequence selected in the training signal sequence selection step with a transmission data sequence, and an electrical-to-optical conversion step of transmitting the signal sequence generated in the signal multiplexing step as an optical signal.
    Type: Application
    Filed: January 15, 2014
    Publication date: November 26, 2015
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Koichi ISHIHARA, Masato MIZOGUCHI, Tomoki MURAKAMI, Tomoyoshi KATAOKA, Yoshiaki KISAKA, Tadao NAKAGAWA, Etsushi YAMAZAKI, Seiji OKAMOTO, Kengo HORIKOSHI, Masahito TOMIZAWA, Riichi KUDO
  • Patent number: 9135903
    Abstract: When a key depression speed and a key release speed of a key is to be detected based on a value of a counter (44) which accumulates a value every time the key passes through key switches (SW1, SW2), a number of digits of data indicating the key depression speed, a unit of the data being a bit and a number of digits of data indicating the key release speed, a unit of the data being a bit, are made the same.
    Type: Grant
    Filed: February 19, 2013
    Date of Patent: September 15, 2015
    Assignee: KABUSHIKI KAISHA KAWAI GAKKI SEISAKUSH O
    Inventor: Seiji Okamoto
  • Publication number: 20150128791
    Abstract: When a key depression speed and a key release speed of a key is to be detected based on a value of a counter (44) which accumulates a value every time the key passes through key switches (SW1, SW2), a number of digits of data indicating the key depression speed, a unit of the data being a bit and a number of digits of data indicating the key release speed, a unit of the data being a bit, are made the same.
    Type: Application
    Filed: February 19, 2013
    Publication date: May 14, 2015
    Applicant: KABUSHIKI KAISHA KAWAI GAKKI SEISAKUSHO
    Inventor: Seiji Okamoto
  • Patent number: 8520390
    Abstract: An electro-magnetic device assembly constituted of an electro-magnetic device; a chassis arranged to sink heat; at least one thermally conductive material in thermal communication with the electro-magnetic device and with the chassis; and at least one mechanically isolating material in contact with the thermally conductive material and with the chassis, the at least one mechanically isolating material arranged to dampen the transmission of vibrations experienced by the chassis, in the direction of the magnetic field of the electro-magnetic device, to the electro-magnetic device.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: August 27, 2013
    Assignee: Microsemi Corporation
    Inventors: Douglas Seiji Okamoto, Timothy J Dasilva, Louis Ray Pledger, Jr.
  • Publication number: 20110242767
    Abstract: An electro-magnetic device assembly constituted of an electro-magnetic device; a chassis arranged to sink heat; at least one thermally conductive material in thermal communication with the electro-magnetic device and with the chassis; and at least one mechanically isolating material in contact with the thermally conductive material and with the chassis, the at least one mechanically isolating material arranged to dampen the transmission of vibrations experienced by the chassis, in the direction of the magnetic field of the electro-magnetic device, to the electro-magnetic device.
    Type: Application
    Filed: March 29, 2011
    Publication date: October 6, 2011
    Applicant: MICROSEMI CORPORATION
    Inventors: Douglas Seiji OKAMOTO, Timothy J DASILVA, Louis Ray PLEDGER, JR.
  • Publication number: 20110122007
    Abstract: An analog-to-digital converter circuit includes: a plurality of sample-and-hold circuits configured to sample an analog signal; an analog-to-digital converter configured to convert the analog signal held by each of the plurality of sample-and-hold circuits into a digital signal; and a control circuit configured to output a control signal, wherein a pair of sample-and-hold circuits among the plurality of sample-and-hold circuits sample an analog signal in a first period and hold an analog signal sampled by another pair of sample-and-hold circuits in a second period prior to the first period based on the control signal.
    Type: Application
    Filed: November 19, 2010
    Publication date: May 26, 2011
    Applicant: FUJITSU SEMICONDUCTOR LIMITED
    Inventor: Seiji OKAMOTO
  • Patent number: 7908935
    Abstract: The inventors perfected the present invention upon finding that a conventional fecal sampling stick is given a hollow structure that has openings a certain distant apart, permitting in aspiration through the capillary tube phenomenon. That is, the present invention is a feces collection container for collecting faeces as an analyte, which comprises a fecal sampling stick which has a holding part (11) at a base, a fecal sampling part (12) at a tip and is formed a hollow passage with openings at the tip and on the base side a predetermined distance from the tip.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: March 22, 2011
    Assignee: Nipro Corporation
    Inventors: Mitsuru Hasegawa, Yoshikatsu Tomita, Seiji Okamoto
  • Publication number: 20100000341
    Abstract: The inventors perfected the present invention upon finding that a conventional fecal sampling stick is given a hollow structure that has openings a certain distant apart, permitting in aspiration through the capillary tube phenomenon. That is, the present invention is a feces collection container for collecting faeces as an analyte, which comprises a fecal sampling stick which has a holding part (11) at a base, a fecal sampling part (12) at a tip and is formed a hollow passage with openings at the tip and on the base side a predetermined distance from the tip.
    Type: Application
    Filed: December 15, 2006
    Publication date: January 7, 2010
    Applicant: NIPRO CORPORATION
    Inventors: Mitsuru Hasegawa, Yoshikatsu Tomita, Seiji Okamoto
  • Patent number: 7145414
    Abstract: A circuit structure may include first and second transmission lines, each with a center conductor extending along or between one or more spaced-apart conducting surfaces. A conducting surface, such as a ground, reference, or signal-return plane, of the first transmission line may have an orientation that is transverse to the orientation of a conducting surface of the second transmission line. Each of the conducting surfaces of the first transmission line may contact one or more of the conducting surfaces of the second transmission line. In some examples, one or both of the transmission lines are slablines, and in some examples, the contacting edges or edges adjacent the contacting edges of the respective conductive surfaces are curved.
    Type: Grant
    Filed: June 30, 2004
    Date of Patent: December 5, 2006
    Assignee: Endwave Corporation
    Inventors: Douglas Seiji Okamoto, Anthony C. Sweeney, Thomas M. Gaudette
  • Patent number: 6762357
    Abstract: Resonance is realized at a desired plurality of tone pitches even after the musical tone signals of a plurality of channels have been synthesized; synthesized musical tone signals are successively delayed, the musical tone signals that are successively delayed are weighted, synthesized and output; the delayed, weighted, synthesized and outputted musical tone signals are fed back, and a series of successive delays, weights, synthesizes and outputs by the feed back are repeated and thus resonance characteristics is imparted; the amount of weighting the musical tone signals successively delayed is determined based upon a relationship among the delay feedback period, the period of sampling the generated musical tone signals and the tone pitch period of the resonance sound imparted with resonance characteristics, and a frequency of the resonance characteristics are determined; Therefore, the resonance characteristics are added at a desired tone pitch after the plurality of musical tone signals are synthesized into
    Type: Grant
    Filed: April 17, 2002
    Date of Patent: July 13, 2004
    Assignee: Kawai Musical Instruments Mfg. Co., Ltd.
    Inventors: Yutaka Washiyama, Seiji Okamoto
  • Patent number: 6572771
    Abstract: An apparatus for treatment of fluorine waste water has an introduction tank, a main treatment tank, a calcium hydroxide tank, a polychlorinated aluminum tank, a macromolecular flocculant tank, a settling tank, and a concentration tank. Fluorine waste water is introduced through the introduction tank into a lower part of the main treatment tank through a lower inlet pipe. Also, return sludge from the concentration tank and silicon sludge from a silicon waste water treatment system are introduced into an upper part of the main treatment tank. Thus, silicon recovered from silicon waste water is recycled for treatment of fluorine waste water. Also, unreacted chemicals, which have been loaded in the calcium hydroxide tank, polychlorinated aluminum tank, macromolecular flocculant tank, are recycled. The main treatment tank has no stirrer, and thus conserves electrical energy, but can neutralize the waste water.
    Type: Grant
    Filed: June 4, 2002
    Date of Patent: June 3, 2003
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kazuyuki Yamasaki, Kazumi Chujo, Seiji Okamoto, Yukihiro Tao
  • Publication number: 20020166441
    Abstract: Resonance is realized at a desired plurality of tone pitches even after the musical tone signals of a plurality of channels have been synthesized; synthesized musical tone signals are successively delayed, the musical tone signals that are successively delayed are weighted, synthesized and output; the delayed, weighted, synthesized and outputted musical tone signals are fed back, and a series of successive delays, weights, synthesizes and outputs by the feed back are repeated and thus resonance characteristics is imparted; the amount of weighting the musical tone signals successively delayed is determined based upon a relationship among the delay feedback period, the period of sampling the generated musical tone signals and the tone pitch period of the resonance sound imparted with resonance characteristics, and a frequency of the resonance characteristics are determined; Therefore, the resonance characteristics are added at a desired tone pitch after the plurality of musical tone signals are synthesized into
    Type: Application
    Filed: April 17, 2002
    Publication date: November 14, 2002
    Inventors: Yutaka Washiyama, Seiji Okamoto
  • Publication number: 20020144940
    Abstract: An apparatus for treatment of fluorine waste water has an introduction tank, a main treatment tank, a calcium hydroxide tank, a polychlorinated aluminum tank, a macromolecular flocculant tank, a settling tank, and a concentration tank. Fluorine waste water is introduced through the introduction tank into a lower part of the main treatment tank. Also, return sludge from the concentration tank and silicon sludge from a silicon waste water treatment system are introduced into an upper part of the main treatment tank. Thus, silicon recovered from silicon waste water is recycled for treatment of fluorine waste water. Also, unreacted chemicals, which have been loaded in the calcium hydroxide tank, polychlorinated aluminum tank, macromolecular flocculant tank, are recycled. The main treatment tank has no stirrer, but can neutralize the waster water.
    Type: Application
    Filed: June 4, 2002
    Publication date: October 10, 2002
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Kazuyuki Yamasaki, Kazumi Chujo, Seiji Okamoto, Yukihiro Tao