Patents by Inventor Satoru Fukumoto
Satoru Fukumoto 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).
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Patent number: 10665445Abstract: A sample loading plate that includes at least one sample mounting spot that mount a sample thereon is provided with a substrate having a conductive surface and an insulating film that is laminated on the conductive surface of the substrate and that has at least an insulating surface, the insulating film being sparsely formed so that the conductive surface of the substrate is partially exposed at least in the sample mounting spot. Thus, a voltage applied to the sample loading plate can effectively place the sample in an electric field. As a result of which, in a mass spectrometric analysis of the sample, there is no charge up of the sample and appropriate ionization becomes possible.Type: GrantFiled: September 17, 2018Date of Patent: May 26, 2020Assignees: CITIZEN FINEDEVICE CO., LTD., CITIZEN WATCH CO., LTD.Inventors: Kazuhiro Toriumi, Mitsunori Miyamoto, Satoru Fukumoto
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Publication number: 20190027352Abstract: A sample loading plate that includes at least one sample mounting spot that mount a sample thereon is provided with a substrate having a conductive surface and an insulating film that is laminated on the conductive surface of the substrate and that has at least an insulating surface, the insulating film being sparsely formed so that the conductive surface of the substrate is partially exposed at least in the sample mounting spot. Thus, a voltage applied to the sample loading plate can effectively place the sample in an electric field. As a result of which, in a mass spectrometric analysis of the sample, there is no charge up of the sample and appropriate ionization becomes possible.Type: ApplicationFiled: September 17, 2018Publication date: January 24, 2019Applicants: CITIZEN FINEDEVICE CO., LTD., CITIZEN WATCH CO., LTD.Inventors: Kazuhiro Toriumi, Mitsunori Miyamoto, Satoru Fukumoto
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Patent number: 8830948Abstract: A mobile communication method according to the present invention includes a step of assigning one or a plurality of Zadoff-Chu sequences to each of cells #A to #G, a step of generating a plurality of RACH preambles by performing a cyclic shift with respect to the assigned Zadoff-Chu sequences by a predetermined period Ncs in each of the cells #A to #G, and a step of acquiring the reception timing distribution of the RACH preambles in the predetermined period Ncs in each of the cells #A to #G.Type: GrantFiled: October 5, 2010Date of Patent: September 9, 2014Assignee: NTT DoCoMo, Inc.Inventors: Satoru Fukumoto, Hiroyuki Ishii
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Patent number: 8547814Abstract: In a diffractive element, its grating pattern is so configured that a diffraction angle of a diffracted light beam of a light source that is subject to the first-order diffraction in a diffraction area is matched with an angle of a light beam passing through the diffractive area emitted from a light source and a light source position is matched with a light originating point of the light source that emits a light beam to be transmitted, and the center of light intensity distribution is matched with that of the light source passing through the diffractive element by inclining an optical axis of the light source. A position of the diffractive element is adjusted based on an electric current value generated when a reflected return path light beam of the light source is diffracted by the diffractive element and enters the light source.Type: GrantFiled: September 8, 2011Date of Patent: October 1, 2013Assignee: Sharp Kabushiki KaishaInventors: Shinzoh Murakami, Mototaka Taneya, Takahide Ishiguro, Katsushige Masui, Satoru Fukumoto, Takeshi Horiguchi
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Patent number: 8406109Abstract: An optical pickup apparatus is provided. Segmented regions included in a focus diffraction region includes focus segmented regions corresponding in number with different light emitted by a light source. Different focus segmented regions are arranged adjacent to each other alternately in a direction perpendicular to a parallel dividing line. Segmented regions included in a tracking diffraction region includes tracking segmented regions corresponding in number with different light emitted by the light source. Different tracking segmented regions are arranged adjacent to each other alternately in a direction perpendicular to the parallel dividing line.Type: GrantFiled: June 19, 2012Date of Patent: March 26, 2013Assignee: Sharp Kabushiki KaishaInventors: Satoru Fukumoto, Shinzoh Murakami
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Publication number: 20130016597Abstract: An optical pickup apparatus is provided. Segmented regions included in a focus diffraction region includes focus segmented regions corresponding in number with different light emitted by a light source. Different focus segmented regions are arranged adjacent to each other alternately in a direction perpendicular to a parallel dividing line. Segmented regions included in a tracking diffraction region includes tracking segmented regions corresponding in number with different light emitted by the light source. Different tracking segmented regions are arranged adjacent to each other alternately in a direction perpendicular to the parallel dividing line.Type: ApplicationFiled: June 19, 2012Publication date: January 17, 2013Inventors: Satoru Fukumoto, Shinzoh Murakami
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Publication number: 20120224560Abstract: A mobile communication method according to the present invention includes a step of assigning one or a plurality of Zadoff-Chu sequences to each of cells #A to #G, a step of generating a plurality of RACH preambles by performing a cyclic shift with respect to the assigned Zadoff-Chu sequences by a predetermined period Ncs in each of the cells #A to #G, and a step of acquiring the reception timing distribution of the RACH preambles in the predetermined period Ncs in each of the cells #A to #G.Type: ApplicationFiled: October 5, 2010Publication date: September 6, 2012Applicant: NTT DOCOMO, INC.Inventors: Satoru Fukumoto, Hiroyuki Ishii
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Patent number: 8204004Abstract: This invention relates to a frequency channel assignment system which enables adaptive overlapping use of the same frequency band in a plurality of radio communications systems. The frequency channel assignment system includes radio communications systems 1 and 2 which use a common frequency band, and controllers 31 and 141. The controllers 31 and 141 include a system characteristics information management function 317 configured to manage system characteristics information showing characteristics of frequency channels in the radio communications systems 1 and 2, and a frequency channel assignment function 1411 configured to assign frequency channels to each of the radio communications systems 1 and 2, based on the system characteristics information and channel status information showing status of frequency channels, so as to avoid inter-system interference.Type: GrantFiled: March 3, 2005Date of Patent: June 19, 2012Assignee: NTT DoCoMo, Inc.Inventors: Kozue Hamamoto, Satoru Fukumoto, Hitoshi Yoshino
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Publication number: 20120063281Abstract: In a diffractive element, its grating pattern is so configured that a diffraction angle of a diffracted light beam of a light source that is subject to the first-order diffraction in a diffraction area is matched with an angle of a light beam passing through the diffractive area emitted from a light source and a light source position is matched with a light originating point of the light source that emits a light beam to be transmitted, and the center of light intensity distribution is matched with that of the light source passing through the diffractive element by inclining an optical axis of the light source. A position of the diffractive element is adjusted based on an electric current value generated when a reflected return path light beam of the light source is diffracted by the diffractive element and enters the light source.Type: ApplicationFiled: September 8, 2011Publication date: March 15, 2012Applicant: SHARP KABUSHIKI KAISHAInventors: Shinzoh MURAKAMI, Mototaka Taneya, Takahide Ishigro, Katsushige Masui, Satoru Fukumoto, Takeshi Horiguchi
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Patent number: 7865192Abstract: A radio frequency selection device in a radio communication system in which a radio communication channel is established between a mobile station and a base station by allocating a radio communication frequency band different from other radio communication system frequency bands is disclosed. The radio frequency selection device comprises: a frequency band determining unit that determines a radio control channel frequency band for transmitting control information, among frequency bands allocated to the radio communication system, based on the allocated radio communication channel frequency band; and a radio control channel establishing unit that establishes a radio control channel among the determined radio control channel frequency bands.Type: GrantFiled: June 13, 2005Date of Patent: January 4, 2011Assignee: NTT DoCoMo, Inc.Inventors: Satoru Fukumoto, Masashige Shirakabe, Hitoshi Yoshino
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Patent number: 7744696Abstract: A borate-based crystal excellent in uniformity and reliability, which is useful as an optical wavelength conversion device, etc., and can be easily produced at low cost in a short period of time, by the steps of dissolving water-soluble starting materials in water to prepare an aqueous solution, evaporating water in the aqueous solution followed by sintering or evaporating the water and not sintering, thereby forming a crystal growth material, and melting the resultant material to grow a crystal. Further, a highly reliable laser oscillation apparatus can be achieved by using this crystal as an optical wavelength conversion device.Type: GrantFiled: February 13, 2004Date of Patent: June 29, 2010Assignee: Japan Science and Technology AgencyInventors: Takatomo Sasaki, Yusuke Mori, Masashi Yoshimura, Muneyuki Nishioka, Satoru Fukumoto, Tomoyo Matsui, Takashi Saji
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Patent number: 7418248Abstract: A signal reception device is disclosed that is able to improve interference cancellation capabilities even when signals having different center frequencies exist on the same frequency band. The signal reception device includes an interference suppression unit to generate replicas of plural signals in the received signal and separate the signals by suppressing interference signals. The interference suppression unit includes a signal phase rotator to rotate phases of the signal candidates at preset respective rotational frequencies, the preset rotational frequencies being related to respective center frequencies of the signals in the received signal; a rotational frequency controller to set the preset rotational frequencies; and a replica generator to generate the replicas of the signals by using the phase-rotated signal candidates.Type: GrantFiled: April 22, 2005Date of Patent: August 26, 2008Assignee: NTT DoCoMo, Inc.Inventors: Koji Maeda, Satoru Fukumoto, Hitoshi Yoshino
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Patent number: 7415275Abstract: A frequency selection apparatus, a mobile communications system, and a multi-band resource management method are disclosed. The frequency selection apparatus includes an acquisition unit configured to collect environmental information about a mobile station for each frequency band according to system frequency bands that a mobile station can use, and a frequency selection unit configured to determine the frequency band to be used and the system to be connected to, based on the environmental information and information provided by the mobile station.Type: GrantFiled: May 27, 2005Date of Patent: August 19, 2008Assignee: NTT DoCoMo, Inc.Inventors: Masashige Shirakabe, Satoru Fukumoto, Hitoshi Yoshino
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Patent number: 7409017Abstract: A signal separator for separating multiple signals contained in a received signal from each other based on a replica of the received signal is provided.Type: GrantFiled: February 1, 2005Date of Patent: August 5, 2008Assignee: NTT DoCoMo, Inc.Inventors: Koji Maeda, Satoru Fukumoto, Hitoshi Yoshino
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Publication number: 20080106999Abstract: There is provided a semiconductor laser apparatus capable of sufficiently discharging heat generated at a semiconductor laser element, having a simple manufacturing step, and capable of adjusting an optical path length, as well as a method for manufacturing the same. A laser chip is connected through a block and a plate to a housing. Further, the plate is partially exposed from a connecting surface between the block and the plate, and when disposed in the housing, the semiconductor chip and the block are inserted from an outside of the housing to an inside thereof, and the plate is exposed outwardly from the housing. An optical axis of an output light beam from the laser chip is in parallel to a ground plane of the housing.Type: ApplicationFiled: September 25, 2007Publication date: May 8, 2008Applicant: SHARP KABUSHIKI KAISHAInventors: Satoru FUKUMOTO, Nobumasa Kaneko
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Publication number: 20070287464Abstract: This invention relates to a frequency channel assignment system which enables adaptive overlapping use of the same frequency band in a plurality of radio communications systems. The frequency channel assignment system includes radio communications systems 1 and 2 which use a common frequency band, and controllers 31 and 141. The controllers 31 and 141 include a system characteristics information management function 317 configured to manage system characteristics information showing characteristics of frequency channels in the radio communications systems 1 and 2, and a frequency channel assignment function 1411 configured to assign frequency channels to each of the radio communications systems 1 and 2, based on the system characteristics information and channel status information showing status of frequency channels, so as to avoid inter-system interference.Type: ApplicationFiled: March 3, 2005Publication date: December 13, 2007Applicant: NTT DoCoMo, IncInventors: Kozue Hamamoto, Satoru Fukumoto, Hitoshi Yoshino
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Publication number: 20060102066Abstract: A borate-based crystal excellent in uniformity and reliability, which is useful as an optical wavelength conversion device, etc., and can be easily produced at low cost in a short period of time, by the steps of dissolving water-soluble starting materials in water to prepare an aqueous solution, evaporating water in the aqueous solution followed by sintering or evaporating the water and not sintering, thereby forming a crystal growth material, and melting the resultant material to grow a crystal. Further, a highly reliable laser oscillation apparatus can be achieved by using this crystal as an optical wavelength conversion device.Type: ApplicationFiled: February 13, 2004Publication date: May 18, 2006Inventors: Takatomo Sasaki, Yusuke Mori, Masashi Yoshimura, Muneyuki Nishioka, Satoru Fukumoto, Tomoyo Matsui, Takashi Saji
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Publication number: 20060018212Abstract: A focus error detecting device which can realize stable focus servo without causing a deterioration in the quality of a signal, is provided. The focus error detecting device outputs a reflected light detection result by an optical recording medium to control a distance between an objective lens and the optical recording medium. With respect to the focus error detecting device, between the objective lens and two split light-receiving segments, is provided a hologram element for bending an optical path so that part of light reflected by the optical recording medium enters the two split light-receiving segments, and splitting a light beam of reflected light entering the two split light-receiving segments into a plurality of parts.Type: ApplicationFiled: July 8, 2005Publication date: January 26, 2006Applicant: SHARP KABUSHIKI KAISHAInventors: Kazuhiro Tsuchida, Satoru Fukumoto, Katsushige Masui, Kazunori Matsubara, Keiji Sakai
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Publication number: 20060009230Abstract: A radio frequency selection device in a radio communication system in which a radio communication channel is established between a mobile station and a base station by allocating a radio communication frequency band different from other radio communication system frequency bands is disclosed. The radio frequency selection device comprises: a frequency band determining unit that determines a radio control channel frequency band for transmitting control information, among frequency bands allocated to the radio communication system, based on the allocated radio communication channel frequency band; and a radio control channel establishing unit that establishes a radio control channel among the determined radio control channel frequency bands.Type: ApplicationFiled: June 13, 2005Publication date: January 12, 2006Applicant: NTT DoCoMo, Inc.Inventors: Satoru Fukumoto, Masashige Shirakabe, Hitoshi Yoshino
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Publication number: 20050271009Abstract: A frequency selection apparatus, a mobile communications system, and a multi-band resource management method are disclosed. The frequency selection apparatus includes an acquisition unit configured to collect environmental information about a mobile station for each frequency band according to system frequency bands that a mobile station can use, and a frequency selection unit configured to determine the frequency band to be used and the system to be connected to, based on the environmental information and information provided by the mobile station.Type: ApplicationFiled: May 27, 2005Publication date: December 8, 2005Applicant: NTT DoCoMo, IncInventors: Masashige Shirakabe, Satoru Fukumoto, Hitoshi Yoshino