Patents by Inventor Takashi Sekiguchi
Takashi Sekiguchi 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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Publication number: 20110221578Abstract: The wireless identification card (10) includes an identification information storage (11) configured to store identification information, and a transmitter (12) configured to transmit, to a reader (90), a wireless signal including the identification information stored in the identification information storage (11). The wireless identification card (10) further includes a solar cell (15) configured to supply electrical power to the transmitter (12). The solar cell (15) includes a sensitizing material having sensitization action, a semiconductor layer (1513) defined as an electron transport member, and an electrolyte layer (1514) defined as a hole transport member.Type: ApplicationFiled: September 9, 2009Publication date: September 15, 2011Applicant: Panasonic Electric Works Co., Ltd.Inventors: Takashi Sekiguchi, Shingo Kambe, Satoko Kambe, Takeyuki Yamaki
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Publication number: 20110146796Abstract: This invention aims to provide a photpelectrical device with a superior conversion efficiency, which comprises an electron transport layer giving a superior electron-transporting performance and a sufficiently large dimentional interface. The photoelectric device further comprises a pair of electrode and a hole transport layer with the electron transport layer and the hole transport layer being interposed between electrodes. The electron transport layer is made of an organic compound having a redox moiety capable of being oxidized and reduced repeatedly. The organic compound is included in a gel layer containing an electrolyte solution which stabilizes a reduction state of the redox moiety.Type: ApplicationFiled: July 31, 2009Publication date: June 23, 2011Applicants: Panasonic Electric Works Co., Ltd, Waseda UniversityInventors: Takashi Sekiguchi, Shingo Kambe, Satoko Kambe, Hiroyuki Nishide, Kenichi Oyaizu, Fumiaki Kato, Akira Takahashi, Takeyuki Yamaki, Mitsuo Yaguchi, Michio Suzuka
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Patent number: 7879309Abstract: A method is disclosed whereby a functional nanomaterial such as a monolayer carbon nanotube, a monolayer boron nitride nanotube, a monolayer silicon carbide nanotube, a multilayer carbon nanotube with the number of layers controlled, a multilayer boron nitride nanotube with the number of layers controlled, a multilayer silicon carbide nanotube with the number of layers controlled, a metal containing fullerene, and a metal containing fullerene with the number of layers controlled is produced at a high yield. According to the method, when a multilayer carbon nanotube (3) is formed by a chemical vapor deposition or a liquid phase growth process, an endothermic reaction aid (H2S) is introduced in addition to a primary reactant (CH4, H2) in the process to form a monolayer carbon nanotube (4).Type: GrantFiled: March 3, 2010Date of Patent: February 1, 2011Assignee: Japan Science and Technology AgencyInventors: Tadashi Mitsui, Takashi Sekiguchi, Mika Gamo, Yafei Zhang, Toshihiro Ando
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Patent number: 7771697Abstract: A method is disclosed whereby a functional nanomaterial such as a monolayer carbon nanotube, a monolayer boron nitride nanotube, a monolayer silicon carbide nanotube, a multilayer carbon nanotube with the number of layers controlled, a multilayer boron nitride nanotube with the number of layers controlled, a multilayer silicon carbide nanotube with the number of layers controlled, a metal containing fullerene, and a metal containing fullerene with the number of layers controlled is produced at a high yield. According to the method, when a multilayer carbon nanotube (3) is formed by a chemical vapor deposition or a liquid phase growth process, an endothermic reaction aid (H2S) is introduced in addition to a primary reactant (CH4, H2) in the process to form a monolayer carbon nanotube (4).Type: GrantFiled: November 12, 2002Date of Patent: August 10, 2010Assignee: Japan Science and Technology AgencyInventors: Tadashi Mitsui, Takashi Sekiguchi, Mika Gamo, Yafei Zhang, Toshihiro Ando
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Publication number: 20100183494Abstract: A method is disclosed whereby a functional nanomaterial such as a monolayer carbon nanotube, a monolayer boron nitride nanotube, a monolayer silicon carbide nanotube, a multilayer carbon nanotube with the number of layers controlled, a multilayer boron nitride nanotube with the number of layers controlled, a multilayer silicon carbide nanotube with the number of layers controlled, a metal containing fullerene, and a metal containing fullerene with the number of layers controlled is produced at a high yield. According to the method, when a multilayer carbon nanotube (3) is formed by a chemical vapor deposition or a liquid phase growth process, an endothermic reaction aid (H2S) is introduced in addition to a primary reactant (CH4, H2) in the process to form a monolayer carbon nanotube (4).Type: ApplicationFiled: March 3, 2010Publication date: July 22, 2010Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCYInventors: Tadashi MITSUI, Takashi SEKIGUCHI, Mika GAMO, Yafei ZHANG, Toshihiro ANDO
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Patent number: 7715759Abstract: The image forming apparatus includes an image bearing member, a first motor for driving said image bearing member, a fixing unit which fixes an image transferred from said image bearing member to a recording material onto the recording material and a second motor for driving said fixing unit, wherein said fixing unit is started up by said first motor and then driven by said second motor. Thereby, costs on the second motor for driving the fixing apparatus, which is disposed separately from the first motor for driving the image forming apparatus, can be restrained.Type: GrantFiled: August 25, 2008Date of Patent: May 11, 2010Assignee: Canon Kabushiki KaishaInventors: Shinya Kawakami, Takashi Sekiguchi
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Patent number: 7684700Abstract: The invention relates to an optical transmitting device. Particularly, the invention provides a loss-of-signal detecting device that detects a loss of an optical signal received by a terminal station or a relay station, in the order of an SD and an SF.Type: GrantFiled: August 8, 2007Date of Patent: March 23, 2010Assignee: Fujitsu LimitedInventors: Yoshihiro Onoda, Takashi Sekiguchi, Takao Sumiya, Yoshihiro Kaneda
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Patent number: 7586436Abstract: A radar device separates directions of a plurality of targets, obtained from combinations of antenna beams, with a high accuracy. The radar device includes: a direction calculating unit for calculating a primary direction, which is the direction of a target, from a combination of characterizing quantities calculated by a signal detector from the reception waves of at least two beams that partially overlap, among the beams radiated in the plurality of directions; and a direction integrating unit for, when a plurality of primary directions calculated by the direction calculating unit is present, calculating an integrated direction, which is the true target direction, from an area in which distribution of the plurality of primary directions is a predetermined density or greater, based on the primary directions belonging to the area.Type: GrantFiled: September 11, 2003Date of Patent: September 8, 2009Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Toshio Wakayama, Takashi Sekiguchi, Atsushi Okamura, Masayoshi Ito, Takayuki Inaba, Masashi Mitsumoto
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Publication number: 20090130329Abstract: A method for fabricating metal-coated organic crystal wherein a reaction of an organic crystal with transition metal salt in alkaline aqueous solution under visible light irradiation, wherein, when energy at the top of valence band of the organic crystal is defined as A (eV) and energy at the bottom of conduction band of the organic crystal is defined as B (eV), redox potential C (V) of transition metal ion or transition metal complex ion, when said transition metal salt is dissolved in the alkaline aqueous solution, these three parameters should satisfy the following relation (1): ?A?4.5?C??B?4.Type: ApplicationFiled: March 10, 2006Publication date: May 21, 2009Inventors: Tsunenobu Onodera, Hidetoshi Oikawa, Hitoshi Kasai, Hachiro Nakanishi, Takashi Sekiguchi
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Patent number: 7535162Abstract: The present invention relates to a zinc oxide phosphor characterized by emitting visible light with a broad emission spectrum close to white, and a process for producing the same. A powder prepared by adding a plurality of additives to zinc oxide and heat-treating the resulting mixture is further hydrogenated to improve the luminous efficiency of the zinc oxide phosphor. The zinc oxide phosphor providing a broad emission spectrum covering a wavelength range over substantially the entire visible region can be applied to a white diode, a white vacuum fluorescent display, and a fluorescent paint.Type: GrantFiled: April 30, 2004Date of Patent: May 19, 2009Assignee: National Institute for Materials ScienceInventors: Naoki Ohashi, Takamasa Ishigaki, Hiroyuki Taguchi, Isao Sakaguchi, Hajime Haneda, Takashi Sekiguchi
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Patent number: 7528768Abstract: A radar device includes: an oscillator for generating a wave at a plurality of transmission frequencies; a transmitting antenna; a receiving antenna; a receiver for generating a real received signal; a Fourier transform unit for performing a Fourier transform on the real received signal in a time direction; a spectral peak detecting unit for receiving an input of a result of the Fourier transform to extract peak complex signal values of Doppler frequency points having a maximum amplitude; a distance calculating unit for storing the peak complex signal values and for calculating a distance to a reflecting object based on the stored peak complex signal values to output the obtained distance as a measured distance value; and a distance sign determining unit for determining validity of the measured distance value and for outputting the measured distance value and the Doppler frequency according to a result of determination.Type: GrantFiled: October 10, 2007Date of Patent: May 5, 2009Assignee: Mitsubishi Electric CorporationInventors: Toshio Wakayama, Takayuki Inaba, Satoru Murayama, Takashi Sekiguchi
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Patent number: 7471919Abstract: The image forming apparatus includes an image bearing member, a first motor for driving said image bearing member, a fixing unit which fixes an image transferred from said image bearing member to a recording material onto the recording material and a second motor for driving said fixing unit, wherein said fixing unit is started up by said first motor and then driven by said second motor. Thereby, costs on the second motor for driving the fixing apparatus, which is disposed separately from the first motor for driving the image forming apparatus, can be restrained.Type: GrantFiled: February 13, 2006Date of Patent: December 30, 2008Assignee: Canon Kabushiki KaishaInventors: Shinya Kawakami, Takashi Sekiguchi
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Publication number: 20080317491Abstract: The image forming apparatus includes an image bearing member, a first motor for driving said image bearing member, a fixing unit which fixes an image transferred from said image bearing member to a recording material onto the recording material and a second motor for driving said fixing unit, wherein said fixing unit is started up by said first motor and then driven by said second motor. Thereby, costs on the second motor for driving the fixing apparatus, which is disposed separately from the first motor for driving the image forming apparatus, can be restrained.Type: ApplicationFiled: August 25, 2008Publication date: December 25, 2008Applicant: CANON KABUSHIKI KAISHAInventors: SHINYA KAWAKAMI, TAKASHI SEKIGUCHI
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Publication number: 20080309546Abstract: A radar device includes: an oscillator for generating a wave at a plurality of transmission frequencies; a transmitting antenna; a receiving antenna; a receiver for generating a real received signal; a Fourier transform unit for performing a Fourier transform on the real received signal in a time direction; a spectral peak detecting unit for receiving an input of a result of the Fourier transform to extract peak complex signal values of Doppler frequency points having a maximum amplitude; a distance calculating unit for storing the peak complex signal values and for calculating a distance to a reflecting object based on the stored peak complex signal values to output the obtained distance as a measured distance value; and a distance sign determining unit for determining validity of the measured distance value and for outputting the measured distance value and the Doppler frequency according to a result of determination.Type: ApplicationFiled: October 10, 2007Publication date: December 18, 2008Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Toshio Wakayama, Takayuki Inaba, Satoru Murayama, Takashi Sekiguchi
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Patent number: 7440191Abstract: For the purpose of depositing deviation-free dichroic coatings of high plane rectitude, there is disclosed a method starting with preparation of glass assembly units each composed of first and second glass members of different lengths. A first dichroic coating 10A is deposited on a lateral side of one glass member, and the other glass member is joined on the first dichroic coating 10A on the one glass member to obtain a glass assembly unit 5. A lateral side of the glass assembly unit 5 is ground to one and same plane at an angle of 90 degrees, and then two edge lines on the opposite side are ground at an angle of 45 degrees to obtain a prism member. A second dichroic coating is deposited on the prism member, and joined with another prism member without a second dichroic coating to obtain a parental cross prism material to be cut into cubes for use as cross prisms.Type: GrantFiled: April 15, 2005Date of Patent: October 21, 2008Assignee: Fujinon Sano CorporationInventors: Takashi Sekiguchi, Kazuo Endo, Katsumi Endo, Shigeru Kato
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Publication number: 20080136263Abstract: A power supply system for supplying a plurality of power-supply voltages to a load. The power supply system includes: a plurality of voltage output units which output the plurality of power-supply voltages; a gradient calculation unit which calculates the gradients of the plurality of power-supply voltages in intervals subsequent to certain moments immediately after the beginnings of rises of the plurality of power-supply voltages on the basis of the levels of the plurality of power-supply voltages at the moments; a gradient extraction unit which extracts the gentlest one of the gradients; and a power-supply control unit which controls the plurality of voltage output units so that the plurality of power-supply voltages rise with the gentlest one of the gradients.Type: ApplicationFiled: November 20, 2007Publication date: June 12, 2008Applicant: FUJITSU LIMITEDInventors: Yoshihiro Kaneda, Takashi Sekiguchi, Takao Sumiya, Yoshihiro Onoda, Takuya Suemura
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Publication number: 20070280684Abstract: The invention relates to an optical transmitting device. Particularly, the invention provides a loss-of-signal detecting device that detects a loss of an optical signal received by a terminal station or a relay station, in the order of an SD and an SF.Type: ApplicationFiled: August 8, 2007Publication date: December 6, 2007Applicant: FUJITSU LIMITEDInventors: Yoshihiro Onoda, Takashi Sekiguchi, Takao Sumiya, Yoshihiro Kaneda
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Publication number: 20070158615Abstract: The present invention relates to a zinc oxide phosphor characterized by emitting visible light with a broad emission spectrum close to white, and a process for producing the same. A powder prepared by adding a plurality of additives to zinc oxide and heat-treating the resulting mixture is further hydrogenated to improve the luminous efficiency of the zinc oxide phosphor. The zinc oxide phosphor providing a broad emission spectrum covering a wavelength range over substantially the entire visible region can be applied to a white diode, a white vacuum fluorescent display, and a fluorescent paint.Type: ApplicationFiled: April 30, 2004Publication date: July 12, 2007Inventors: Naoki Ohashi, Takamasa Ishigaki, Hiroyuki Taguchi, Isao Sakaguchi, Hajime Haneda, Takashi Sekiguchi
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Publication number: 20070102097Abstract: For the purpose of depositing deviation-free dichroic coatings of high plane rectitude, there is disclosed a method starting with preparation of glass assembly units each composed of first and second glass members of different lengths. A first dichroic coating 10A is deposited on a lateral side of one glass member, and the other glass member is joined on the first dichroic coating 10A on the one glass member to obtain a glass assembly unit 5. A lateral side of the glass assembly unit 5 is ground to one and same plane at an angle of 90 degrees, and then two edge lines on the opposite side are ground at an angle of 45 degrees to obtain a prism member. A second dichroic coating is deposited on the prism member, and joined with another prism member without a second dichroic coating to obtain a parental cross prism material to be cut into cubes for use as cross prisms.Type: ApplicationFiled: April 15, 2005Publication date: May 10, 2007Applicant: FUJINON SANO CORPORATIONInventors: Takashi Sekiguchi, Kazuo Endo, Katsumi Endo, Shigeru Kato
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Publication number: 20060238405Abstract: A radar device separates directions of a plurality of targets, obtained from combinations of antenna beams, with a high accuracy. The radar device includes: a direction calculating unit for calculating a primary direction, which is the direction of a target, from a combination of characterizing quantities calculated by a signal detector from the reception waves of at least two beams that partially overlap, among the beams radiated in the plurality of directions; and a direction integrating unit for, when a plurality of primary directions calculated by the direction calculating unit is present, calculating an integrated direction, which is the true target direction, from an area in which distribution of the plurality of primary directions is a predetermined density or greater, based on the primary directions belonging to the area.Type: ApplicationFiled: September 11, 2003Publication date: October 26, 2006Inventors: Toshio Wakayama, Takashi Sekiguchi, Atsushi Okamura, Masayoshi Ito, Takayuki Inaba, Masashi Mitsumoto