Patents by Inventor Koji Igarashi
Koji Igarashi 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: 11952286Abstract: Provided are: an Mn ferrite powder characterized by including a plurality of ferrite particles, having a volume-average particle diameter of 1-10 ?m, and having a 2.106 ?m volume-based cumulative distribution (sieved) of 0.1-50.0 vol %; and a resin composition characterized by including said powder and a resin material.Type: GrantFiled: February 6, 2019Date of Patent: April 9, 2024Assignee: POWDERTECH CO., LTD.Inventors: Koji Aga, Takashi Kojima, Kazutaka Ishii, Tetsuya Igarashi, Sho Kuwahara
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Patent number: 11689295Abstract: A reception apparatus includes: a receiving unit configured to coherently detect an optical signal and output an electrical signal containing a modulated signal and a pilot signal; a first compensating unit configured to detect a frequency of the pilot signal by performing a DFT of the electrical signal, and determine and compensate for frequency error in the electrical signal based on a reference frequency; a frequency converting unit configured to convert the frequency of the pilot signal after the compensating such that the frequency of the pilot signal is lowered by the reference frequency; and a second compensating unit configured to determine frequency error in the modulated signal after the compensating by performing a DFT on the pilot signal after the frequency converting and detecting a frequency of the pilot signal after the frequency converting.Type: GrantFiled: February 28, 2022Date of Patent: June 27, 2023Assignees: KDDI CORPORATION, NEC Platforms, Ltd.Inventors: Shohei Beppu, Takehiro Tsuritani, Koji Igarashi, Masahiro Shigihara, Masahiro Kikuta
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Publication number: 20220190930Abstract: A reception apparatus includes: a receiving unit configured to coherently detect an optical signal and output an electrical signal containing a modulated signal and a pilot signal; a first compensating unit configured to detect a frequency of the pilot signal by performing a DFT of the electrical signal, and determine and compensate for frequency error in the electrical signal based on a reference frequency; a frequency converting unit configured to convert the frequency of the pilot signal after the compensating such that the frequency of the pilot signal is lowered by the reference frequency; and a second compensating unit configured to determine frequency error in the modulated signal after the compensating by performing a DFT on the pilot signal after the frequency converting and detecting a frequency of the pilot signal after the frequency converting.Type: ApplicationFiled: February 28, 2022Publication date: June 16, 2022Applicants: KDDI CORPORATION, NEC Platforms, Ltd.Inventors: Shohei BEPPU, Takehiro TSURITANI, Koji IGARASHI, Masahiro SHIGIHARA, Masahiro KIKUTA
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Patent number: 11117411Abstract: A transfer paper used for a transfer printing method using sublimation textile ink, comprising a base paper and one or more coating layer(s) provided on at least one side of the base paper, wherein an outermost coating layer positioned on the outermost side with respect to the base paper contains at least a pigment, a binder, a polyacrylic acid salt and an acetylene glycol derivative, has image deterioration resistance, good color development property and excellent adhesion property.Type: GrantFiled: July 3, 2017Date of Patent: September 14, 2021Assignee: MITSUBISHI PAPER MILLS LIMITEDInventors: Koji Igarashi, Jun Urasaki
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Patent number: 11104173Abstract: The object is to provide a transfer paper having good image deterioration resistance, color development property and adhesion property. The object is achieved by a transfer paper for use in a transfer textile printing method using sublimation textile ink, which comprises a base paper and one or more coating layer(s) provided on at least one side of the base paper, wherein an outermost coating layer positioned on the outermost side with respect to the base paper contains at least a pigment and a binder, at least one of the pigment is amorphous silica, and the binder contains two or more different binders, and at least one of the binders is an ethylene-vinyl acetate copolymer.Type: GrantFiled: April 9, 2018Date of Patent: August 31, 2021Assignee: MITSUBISHI PAPER MILLS LIMITEDInventors: Koji Igarashi, Jun Urasaki
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Publication number: 20200181837Abstract: The object is to provide a transfer paper having good image deterioration resistance, color development property and adhesion property. The object is achieved by a transfer paper for use in a transfer textile printing method using sublimation textile ink, which comprises a base paper and one or more coating layer(s) provided on at least one side of the base paper, wherein an outermost coating layer positioned on the outermost side with respect to the base paper contains at least a pigment and a binder, at least one of the pigment is amorphous silica, and the binder contains two or more different binders, and at least one of the binders is an ethylene-vinyl acetate copolymer.Type: ApplicationFiled: April 9, 2018Publication date: June 11, 2020Applicant: MITSUBISHI PAPER MILLS LIMITEDInventors: Koji IGARASHI, Jun URASAKI
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Publication number: 20200095726Abstract: The object is to provide a transfer textile printing method that satisfies general versatility, simplicity, fixing property, color development property and fineness. The object is achieved by a transfer textile printing method comprising a step (1) of preparing a transfer paper, a step (2) of forming a pattern using a pigment ink on the transfer paper to obtain a printed transfer paper, a step (3) of bringing the printed transfer paper and a textile printing medium into close contact with each other and heating and pressurizing, a step (4) of performing a heat treatment without pressurizing while the printed transfer paper and the textile printing medium remain in close contact with each other, and a step (5) of removing the printed transfer paper from the textile printing medium, wherein the transfer textile printing method comprises the step (3), the step (4), and the step (5) in this order.Type: ApplicationFiled: April 9, 2018Publication date: March 26, 2020Applicant: MITSUBISHI PAPER MILLS LIMITEDInventor: Koji IGARASHI
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Publication number: 20200039275Abstract: A transfer paper used for a transfer printing method using sublimation textile ink, comprising a base paper and one or more coating layer(s) provided on at least one side of the base paper, wherein an outermost coating layer positioned on the outermost side with respect to the base paper contains at least a pigment, a binder, a polyacrylic acid salt and an acetylene glycol derivative, has image deterioration resistance, good color development property and excellent adhesion property.Type: ApplicationFiled: July 3, 2017Publication date: February 6, 2020Applicant: MITSUBISHI PAPER MILLS LIMITEDInventors: Koji IGARASHI, Jun URASAKI
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Patent number: 10139703Abstract: In an Ising spin measuring step, measurement is suspended after one set of measurement of all Ising spins {?i} is completed before another set of measurement of all Ising spins {?i} is restarted. In an Ising interaction computing step, all Ising interactions relating to all the Ising spins ?i can be computed with a sufficient time margin on the basis of most recent measurement of Ising spins ?i, after one set of measurement of all the Ising spins {?i} is completed before another set of measurement of all the Ising spins {?i} is restarted by the Ising spin measuring step.Type: GrantFiled: September 14, 2016Date of Patent: November 27, 2018Assignees: NIPPON TELEGRAPH AND TELEPHONE CORPORATION, INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION RESEARCH ORGANIZATION OF INFORMATION AND SYSTEMS, OSAKA UNIVERSITYInventors: Takahiro Inagaki, Hiroki Takesue, Toshimori Honjo, Shoko Utsunomiya, Yoshihisa Yamamoto, Yoshitaka Haribara, Shuhei Tamate, Koji Igarashi
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Publication number: 20180246393Abstract: In an Ising spin measuring step, measurement is suspended after one set of measurement of all Ising spins {?i} is completed before another set of measurement of all Ising spins {?i} is restarted. In an Ising interaction computing step, all Ising interactions relating to all the Ising spins ?i can be computed with a sufficient time margin on the basis of most recent measurement of Ising spins ?i, after one set of measurement of all the Ising spins {?i} is completed before another set of measurement of all the Ising spins {?i} is restarted by the Ising spin measuring step.Type: ApplicationFiled: September 14, 2016Publication date: August 30, 2018Applicants: NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Inter-University Research Institute Corporation Research Organization of Information and Systems, OSAKA UNIVERSITYInventors: Takahiro INAGAKI, Hiroki TAKESUE, Toshimori HONJO, Shoko UTSUNOMIYA, Yoshihisa YAMAMOTO, Yoshitaka HARIBARA, Shuhei TAMATE, Koji IGARASHI
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Publication number: 20160216440Abstract: An optical fiber includes a core portion, and a cladding portion being formed at an outer periphery of the core portion and having a refractive index lower than a maximum refractive index of the core portion. The core portion has ?-shaped refractive index profile in which a value of ? is equal to or greater than 3 and equal to or smaller than 10, and at least a diameter of the core portion and a relative refractive-index difference of the core portion relative to the cladding portion are set so that light can be propagated with equal to or greater than 6 propagation modes at a wavelength of light inputted.Type: ApplicationFiled: April 1, 2016Publication date: July 28, 2016Applicant: Furukawa Electric Co., Ltd.Inventors: Katsunori IMAMURA, Ryuichi SUGIZAKI, Takehiro TSURITANI, Koji IGARASHI
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Publication number: 20120027343Abstract: An optical regeneration system for regenerating a degenerated signal light, comprising a regeneration device having at least one of a soliton converter, a pulse roller, a Kerr-shutter and a soliton purifier. The solilton converter uses an anomalaous-dispersion fiber (ADF) having a fiber length up to three times the soliton frequency, and the pulse roller is provided with a pulse roller fiber having high non-linear characteristics. The Kerr-shutter comprises an optical LO (local oscillation) generator for generating an optical LO on an OPLL (optical phase locked loop), a phase comparator for detecting the phase difference between an externally-input signal light and an optical LO, and a control unit for regulating the repeated frequency of an optical LO based on the phase difference. The soliton purifier has a soliton fiber disposed between two optical fibers.Type: ApplicationFiled: October 10, 2011Publication date: February 2, 2012Applicant: THE FURUKAWA ELECTRIC CO., LTD.Inventors: Koji IGARASHI, Shunichi Matsushita, Shu Namiki, Shigehiro Takasaka, Takashi Inoue, Hideaki Tobioka, Jiro Hiroishi
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Patent number: 8059966Abstract: An optical regeneration system for regenerating a degenerated signal light, comprising a regeneration device having at least one of a soliton converter, a pulse roller, a Kerr-shutter and a soliton purifier. The solilton converter uses an anomalous-dispersion fiber (ADF) having a fiber length up to three times the soliton frequency, and the pulse roller is provided with a pulse roller fiber having high non-linear characteristics. The Kerr-shutter comprises an optical LO (local oscillation) generator for generating an optical LO on an OPLL (optical phase locked loop), a phase comparator for detecting the phase difference between an externally-input signal light and an optical LO, and a control unit for regulating the repeated frequency of an optical LO based on the phase difference. The soliton purifier has a soliton fiber disposed between two optical fibers.Type: GrantFiled: June 11, 2003Date of Patent: November 15, 2011Assignee: The Furukawa Electric Co., Ltd.Inventors: Koji Igarashi, Shunichi Matsushita, Shu Namiki, Shigehiro Takasaka, Takashi Inoue, Hideaki Tobioka, Jiro Hiroishi
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Patent number: 7939269Abstract: The present invention relates to a method for diagnosing cancer and a detection reagent based on detection of Epstein-Barr virus nuclear antigen 2 (EBNA2) coactivator p100 contained in a specimen, and a method for treating cancer by controlling expression of EBNA2 coactivator p100 protein or a gene thereof.Type: GrantFiled: September 17, 2007Date of Patent: May 10, 2011Assignee: Tosoh CorporationInventors: Shin Egawa, Hidetoshi Kuruma, Hiroyuki Takahashi, Koji Igarashi
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Patent number: 7769298Abstract: The present invention provides a pulse train generator comprising: a dual-frequency signal light source for generating a dual-frequency signal; a soliton shaper for soliton-shaping output light from the dual-frequency signal light source; and an adiabatic soliton compressor for performing adiabatic soliton compression on output light from the soliton shaper, and also provides a waveform shaper used in this pulse train generator, including a plurality of highly nonlinear optical transmission lines and a plurality of low-nonlinearity optical transmission lines which has a nonlinearity coefficient lower than that of the plurality of highly nonlinear optical transmission lines and which has a second-order dispersion value of which an absolute value is different from that of the plurality of highly nonlinear optical transmission lines.Type: GrantFiled: September 25, 2008Date of Patent: August 3, 2010Assignee: The Furukawa Electric Co., Ltd.Inventors: Koji Igarashi, Yoshihiro Emori, Atsushi Oguri, Shu Namiki, Osamu Aso, Masateru Tadakuma
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Patent number: 7763333Abstract: This invention provides an ink jet recording medium, which is small in coverage and, at the same time, can simultaneously realize high gloss and ink absorption. The ink jet recording medium is produced by coating a lower layer comprising a water-absorptive pigment, a latex, and boric acid or its salt and an upper layer comprising a submicron pigment and polyvinyl alcohol, and conducting casting.Type: GrantFiled: September 7, 2006Date of Patent: July 27, 2010Assignee: Mitsubishi Paper Mills LimitedInventors: Makoto Kato, Masanori Nagoshi, Koji Igarashi, Yuri Watanabe, Hidetsugu Oda, Terufumi Yamaguchi
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Publication number: 20100120064Abstract: A screening method is provided for antibody specifically recognizing naturally-occurring form of human autotaxin in a state in which it is present in the body without being denatured, comprising the steps of: binding a binding factor capable of capturing a candidate antibody of the antibody to a solid phase; binding the candidate antibody of the antibody to the binding factor; allowing naturally-occurring form of human autotaxin to react on a system in which the candidate antibody has reacted; and selecting an antibody that specifically recognizes the naturally-occurring form of human autotaxin by using as an indicator thereof the binding strength of the naturally-occurring form of human autotaxin to the antibody.Type: ApplicationFiled: August 2, 2007Publication date: May 13, 2010Applicants: The University of Tokyo, TOSOH CORPORATIONInventors: Junken Aoki, Hiroyuki Arai, Yutaka Yatomi, Hitoshi Ikeda, Kazuhiro Nakamura, Koji Igarashi, Kazufumi Ide
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Publication number: 20090123676Abstract: This invention provides an ink jet recording medium, which is small in coverage and, at the same time, can simultaneously realize high gloss and ink absorption. The ink jet recording medium is produced by coating a lower layer comprising a water-absorptive pigment, a latex, and boric acid or its salt and an upper layer comprising a submicron pigment and polyvinyl alcohol, and conducting casting.Type: ApplicationFiled: September 7, 2006Publication date: May 14, 2009Applicant: Mitsubishi Paper Mills LimitedInventors: Makoto Kato, Masanori Nagoshi, Koji Igarashi, Yuri Watanabe, Hidetsugu Oda, Terufumi Yamaguchi
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Publication number: 20090092400Abstract: The present invention provides a pulse train generator comprising: a dual-frequency signal light source for generating a dual-frequency signal; a soliton shaper for soliton-shaping output light from the dual-frequency signal light source; and an adiabatic soliton compressor for performing adiabatic soliton compression on output light from the soliton shaper, and also provides a waveform shaper used in this pulse train generator, including a plurality of highly nonlinear optical transmission lines and a plurality of low-nonlinearity optical transmission lines which has a nonlinearity coefficient lower than that of the plurality of highly nonlinear optical transmission lines and which has a second-order dispersion value of which an absolute value is different from that of the plurality of highly nonlinear optical transmission lines.Type: ApplicationFiled: September 25, 2008Publication date: April 9, 2009Applicant: THE FURUKAWA ELECTRIC CO., LTDInventors: Koji IGARASHI, Yoshihiro Emori, Atsushi Oguri, Shu Namiki, Osamu Aso, Masateru Tadakuma
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Patent number: 7447444Abstract: The present invention provides a pulse train generator comprising: a dual-frequency signal light source for generating a dual-frequency signal; a soliton shaper for soliton-shaping output light from the dual-frequency signal light source; and an adiabatic soliton compressor for performing adiabatic soliton compression on output light from the soliton shaper, and also provides a waveform shaper used in this pulse train generator, including a plurality of highly nonlinear optical transmission lines and a plurality of low-nonlinearity optical transmission lines which has a nonlinearity coefficient lower than that of the plurality of highly nonlinear optical transmission lines and which has a second-order dispersion value of which an absolute value is different from that of the plurality of highly nonlinear optical transmission lines.Type: GrantFiled: May 23, 2005Date of Patent: November 4, 2008Assignee: The Furukawa Electric Co., Ltd.Inventors: Koji Igarashi, Yoshihiro Emori, Atsushi Oguri, Shu Namiki, Osamu Aso, Masateru Tadakuma