Patents by Inventor Kazuo Kitagawa
Kazuo Kitagawa 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: 20250020728Abstract: An impedance measurement apparatus is provided for measuring impedance of a secondary battery. The impedance measurement apparatus includes a measurement unit and a switching unit. The measurement unit is capable of measuring the impedance of the secondary battery using a plurality of measurement modes differing in measurement condition. The switching unit is configured to switch between the plurality of measurement modes based on a comparison between a correlating parameter, which correlates with the impedance of the secondary battery, and a threshold value.Type: ApplicationFiled: September 30, 2024Publication date: January 16, 2025Applicant: DENSO CORPORATIONInventors: Masaaki KITAGAWA, Isao ISHIBE, Kazuo MATSUKAWA, Shuhei YOSHIDA, Masaki UCHIYAMA
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Patent number: 10676615Abstract: An object of the present invention is to provide a fiber-reinforced resin composition in which fibers with good dispersibility and a resin in which the fibers are easily dispersed have been suitably composited; and a method for producing the fiber-reinforced resin composition. Specifically, the object is to provide a fiber-reinforced resin composition that comprises chemically modified CNFs and a thermoplastic resin, and that has improved physical properties due to the suitable compositing of the fibers with the resin; and a method for producing the fiber-reinforced resin composition. The fiber-reinforced resin composition comprises chemically modified CNFs (A) and a thermoplastic resin (B), wherein the chemically modified CNFs and the thermoplastic resin satisfy the following conditions: (a) the ratio R of the solubility parameter (SPcnf) of the chemically modified CNFs (A) to the solubility parameter (SPpol) of the thermoplastic resin (B), SPcnf/SPpol, is in the range of 0.87 to 1.Type: GrantFiled: March 17, 2016Date of Patent: June 9, 2020Assignees: Kyoto University, KYOTO MUNICIPAL INSTITUTE OF INDUSTRIAL TECHNOLOGY AND CULTURE, NIPPON PAPER INDUSTRIES CO., LTD.Inventors: Takeshi Semba, Akihiro Ito, Takahiro Uesaka, Kazuo Kitagawa, Fumiaki Nakatsubo, Hiroyuki Yano
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Publication number: 20180037737Abstract: An object of the present invention is to provide a fiber-reinforced resin composition in which fibers with good dispersibility and a resin in which the fibers are easily dispersed have been suitably composited; and a method for producing the fiber-reinforced resin composition. Specifically, the object is to provide a fiber-reinforced resin composition that comprises chemically modified CNFs and a thermoplastic resin, and that has improved physical properties due to the suitable compositing of the fibers with the resin; and a method for producing the fiber-reinforced resin composition. The fiber-reinforced resin composition comprises chemically modified CNFs (A) and a thermoplastic resin (B), wherein the chemically modified CNFs and the thermoplastic resin satisfy the following conditions: (a) the ratio R of the solubility parameter (SPcnf) of the chemically modified CNFs (A) to the solubility parameter (SPpol) of the thermoplastic resin (B), SPcnf/SPpol, is in the range of 0.87 to 1.Type: ApplicationFiled: March 17, 2016Publication date: February 8, 2018Inventors: Takeshi Semba, Akihiro Ito, Takahiro Uesaka, Kazuo Kitagawa, Fumiaki Nakatsubo, Hiroyuki Yano
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Publication number: 20170231503Abstract: This photo-acoustic imaging device (100) is provided with: light emitting diodes (16); an acoustic wave detecting unit (14); a device main body (2) in which a light source driving unit (22) including a power supply unit (22a) and a signal generating unit (22b) is provided; and a coaxial cable (3). For the coaxial cable (3), an external conductor (3c) of the coaxial cable (3) is connected to the power supply unit (22a) and an internal conductor (3a) of the coaxial cable (3) is connected to the signal generating unit (22b).Type: ApplicationFiled: July 3, 2015Publication date: August 17, 2017Inventors: Hitoshi NAKATSUKA, Kazuo KITAGAWA, Takamitsu HANAOKA
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Patent number: 9512304Abstract: The present invention provides a method for producing a resin composition, which, by means of simple steps, can uniformly disperse microfibrillated plant fiber in a highly hydrophobic resin and can impart enhanced mechanical strength to a molding material obtained by molding the resin composition. The present invention further provides a resin composition having excellent heat resistance and low linear thermal expansion. The present invention relates to a method for producing a resin composition, the method including a step of mixing a thermoplastic resin or thermosetting resin (A), and modified plant fiber (b) or modified microfibrillated plant fiber (B), in the presence of an organic liquid (C), the modified plant fiber (b) or modified microfibrillated plant fiber (B) being obtained by modification with an alkyl or alkenyl succinic anhydride in a liquid capable of swelling microfibrillated plant fiber (B?) or plant fiber (b).Type: GrantFiled: February 26, 2013Date of Patent: December 6, 2016Assignees: DIC Corporation, Seiko PMC Corporation, Kyoto University, Kyoto Municipal Institute of Industrial Technology and CultureInventors: Hiroyuki Yano, Akihiro Sato, Tomoaki Yoshimura, Yuko Igarashi, Daisuke Kabusaki, Fumiaki Nakatsubo, Hiroaki Okumura, Takeshi Semba, Kazuo Kitagawa, Hiromasa Kataoka, Kazuhiro Shintani
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Patent number: 9505915Abstract: A fastening component is a molded article of a mixture in which microfibrillated cellulose fibers are dispersed in a thermoplastic resin, wherein the thermoplastic resin has a melting point of between 150 and 200° C., and wherein when the total mass % of the thermoplastic resin and the cellulose fibers is set to be 100 mass %, the mass % of the cellulose fibers included in the mixture is greater than 20 mass % and less than 60 mass %. When the total mass % of the thermoplastic resin and the cellulose fibers is set to be 100%, the mass % of the cellulose fibers included in the mixture is preferably equal to or greater than 30 mass % and equal to or less than 50 mass %.Type: GrantFiled: November 5, 2012Date of Patent: November 29, 2016Assignees: Kyoto Municipal Institute of Industrial Technology and Culture, YKK CorporationInventors: Takeshi Senba, Kazuo Kitagawa, Akihiro Itou, Kazuya Mizumoto
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Patent number: 9469750Abstract: A fastening component is a molded article of a mixture in which microfibrillated cellulose fibers are dispersed in a thermoplastic resin, wherein the thermoplastic resin has a melting point of between 150 and 200° C., and wherein when the total mass % of the thermoplastic resin and the cellulose fibers is set to be 100 mass %, the mass % of the cellulose fibers included in the mixture is greater than 20 mass % and less than 60 mass %. When the total mass % of the thermoplastic resin and the cellulose fibers is set to be 100%, the mass % of the cellulose fibers included in the mixture is preferably equal to or greater than 30 mass % and equal to or less than 50 mass %.Type: GrantFiled: November 5, 2012Date of Patent: October 18, 2016Assignees: Kyoto Municipal Institute of Industrial Technology and Culture, YKK CorporationInventors: Takeshi Senba, Kazuo Kitagawa, Akihiro Itou, Kazuya Mizumoto
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Publication number: 20160061715Abstract: This photoacoustic imager is configured to decide the width of a pulse on the basis of a detection sound wave frequency band of a detection portion and to decide the number of pulses in one cycle on the basis of the bandwidth of a detection sound wave frequency of the detection portion.Type: ApplicationFiled: July 2, 2015Publication date: March 3, 2016Inventor: Kazuo KITAGAWA
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Publication number: 20160000333Abstract: A photoacoustic image production device includes a light source that emits light, a light source driver that causes the light source to emit the light, an ultrasonic wave detector that receives an ultrasonic wave and produces an ultrasonic wave detection signal, an image signal production component that produces an ultrasound image based on the ultrasonic wave detection signal, and a controller that controls the light source driver to stop operation of a booster circuit during a first reception period in which the ultrasonic wave detector receives the ultrasonic wave produced by the light emitted from, the light source.Type: ApplicationFiled: June 25, 2015Publication date: January 7, 2016Inventor: Kazuo KITAGAWA
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Publication number: 20150167231Abstract: The present invention provides a novel cationically modified cellulose nanofiber. More specifically, the present invention provides a cellulose nanofiber that is cationically modified with a cationic polymer compound comprising repeating units derived from diallylamine.Type: ApplicationFiled: March 7, 2013Publication date: June 18, 2015Inventors: Takeshi Semba, Akihiro Ito, Takahiro Uesaka, Kazuo Kitagawa, Hiroyuki Yano, Akihiro Sato, Tomoaki Yoshimura
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Publication number: 20150148460Abstract: A fastening component is a molded article of a mixture in which microfibrillated cellulose fibers are dispersed in a thermoplastic resin, wherein the thermoplastic resin has a melting point of between 150 and 200° C., and wherein when the total mass % of the thermoplastic resin and the cellulose fibers is set to be 100 mass %, the mass % of the cellulose fibers included in the mixture is greater than 20 mass % and less than 60 mass %. When the total mass % of the thermoplastic resin and the cellulose fibers is set to be 100%, the mass % of the cellulose fibers included in the mixture is preferably equal to or greater than 30 mass % and equal to or less than 50 mass %.Type: ApplicationFiled: November 5, 2012Publication date: May 28, 2015Inventors: Takeshi Senba, Kazuo Kitagawa, Akihiro Itou, Kazuya Mizumoto
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Publication number: 20150105499Abstract: The present invention provides a method for producing a resin composition, which, by means of simple steps, can uniformly disperse microfibrillated plant fiber in a highly hydrophobic resin and can impart enhanced mechanical strength to a molding material obtained by molding the resin composition. The present invention further provides a resin composition having excellent heat resistance and low linear thermal expansion. The present invention relates to a method for producing a resin composition, the method including a step of mixing a thermoplastic resin or thermosetting resin (A), and modified plant fiber (b) or modified microfibrillated plant fiber (B), in the presence of an organic liquid (C), the modified plant fiber (b) or modified microfibrillated plant fiber (B) being obtained by modification with an alkyl or alkenyl succinic anhydride in a liquid capable of swelling microfibrillated plant fiber (B?) or plant fiber (b).Type: ApplicationFiled: February 26, 2013Publication date: April 16, 2015Inventors: Hiroyuki Yano, Akihiro Sato, Tomoaki Yoshimura, Yuko Igarashi, Daisuke Kabusaki, Fumiaki Nakatsubo, Hiroaki Okumura, Takeshi Semba, Kazuo Kitagawa, Hiromasa Kataoka, Kazuhiro Shintani
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Patent number: 8969441Abstract: The present invention provides a novel cationized microfibrillated plant fiber and a method for manufacturing the same. A cationic microfibrillated plant fiber that is cationically modified with a quaternary-ammonium-group-containing compound, and that has an average diameter of 4 to 200 nm.Type: GrantFiled: February 4, 2011Date of Patent: March 3, 2015Assignees: Nippon Paper Industries Co., Ltd., Oji Holdings Corporation, Kyoto UniversityInventors: Hiroyuki Yano, Tadafumi Hashimoto, Akihiro Sato, Antonio Norio Nakagaito, Kazuo Kitagawa, Takeshi Semba, Akihiro Ito
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Publication number: 20130005869Abstract: The present invention provides a novel cationized microfibrillated plant fiber and a method for manufacturing the same. A cationic microfibrillated plant fiber that is cationically modified with a quaternary-ammonium-group-containing compound, and that has an average diameter of 4 to 200 nm.Type: ApplicationFiled: February 4, 2011Publication date: January 3, 2013Inventors: Hiroyuki Yano, Tadafumi Hashimoto, Akihiro Sato, Antonio Norio Nakagaito, Kazuo Kitagawa, Takeshi Semba, Akihiro Ito
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Patent number: 8255927Abstract: An event control section 210 receives an event notification from an input operation control section 212. If the received event is a user ordered event based on an operation by a user 215, the event control section 210 gives the received event to a GUI content reproduction section 209. On the other hand, if the received event is a logic ordered event based on an order from a logic 201, notification of future generated user ordered events are temporarily stopped and the logic ordered event is notified to GUI content reproduction section 209. The temporary stop of notification of the user ordered event is released after completion of the logic ordered event at the GUI content reproduction section 209.Type: GrantFiled: August 7, 2007Date of Patent: August 28, 2012Assignee: Panasonic CorporationInventors: Hidehiko Shin, Hideaki Yajima, Akiko Miyayama, Kazuo Kitagawa
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Publication number: 20090328072Abstract: An event control section 210 receives an event notification from an input operation control section 212. If the received event is a user ordered event based on an operation by a user 215, the event control section 210 gives the received event to a GUI content reproduction section 209. On the other hand, if the received event is a logic ordered event based on an order from a logic 201, notification of future generated user ordered events are temporarily stopped and the logic ordered event is notified to GUI content reproduction section 209. The temporary stop of notification of the user ordered event is released after completion of the logic ordered event at the GUI content reproduction section 209.Type: ApplicationFiled: August 7, 2007Publication date: December 31, 2009Inventors: Hidehiko Shin, Hideaki Yajima, Akiko Miyayama, Kazuo Kitagawa
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Publication number: 20090047493Abstract: A completely new cloth of utility is provided by using a carbon fiber monofilament. A woven or knitted cloth was prepared at a density of 5 to 1800 yarns per inch by using a carbon fiber monofilament of a diameter of 10 ?m or less as a single yarn. This cloth can be practically used widely in the fields of precise equipments and medical care, as an ultrathin sheet having biocompatibility and electroconductivity.Type: ApplicationFiled: October 19, 2005Publication date: February 19, 2009Inventors: Kazuo Kitagawa, Hironori Fukuoka, Syoji Zaiki
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Publication number: 20060218494Abstract: Disclosed is a data transmission system including: a server device including a title data obtaining section which obtains title data from content providing section in which digital data containing AV data and title data thereof is stored; and a client device including: a title display controlling section which displays on outputting section the obtained title data; a title data storing section which stores title data; and a title data managing section which stores plural title data obtained from plural content providing sections in the title data storing section for each of the content providing section, wherein the server device and the client device communicate with each other through a transmission path, and the title data managing section, based on predetermined input operation information, allows the title display controlling section to display the titles stored in the title data storing section on the outputting section.Type: ApplicationFiled: March 24, 2006Publication date: September 28, 2006Applicant: FUNAI ELECTRIC CO., LTD.Inventor: Kazuo Kitagawa
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Patent number: 5082635Abstract: A crystallographic observation apparatus for the observation of behavior of crystals under pressure and for the measurement of the crystallization pressure and pressure of fusion of substances. The apparatus comprises a pressure chamber having a cavity and provided with a transparent observation window or windows, a pressurizing device for pressurizing the cavity of the pressure vessel, and small, entirely or partly transparent, entirely or partly elastic sample containing means for containing a sample, provided within the cavity of the pressure vessel. The sample can easily be changed for another sample simply by changing the sample containing means containing the former sample for another sample containing means containing the latter sample, or the apparatus can easily be cleaned after the completion of observation of a sample for the observation of the next sample, simply by washing the sample containing means.Type: GrantFiled: December 11, 1989Date of Patent: January 21, 1992Assignee: Kabushiki Kaisha Kobe Seiko ShoInventors: Masao Wakatsuki, Kaoru Takano, Kazuo Kitagawa, Katsufumi Urabe, Toshimitsu Ishida
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Patent number: 4929394Abstract: A process for compacting radioactive waste by precompressing the waste in each of capsules while filling the waste into the capsule to thereby compress the waste to the desired bulk/true density ratio under a small total pressing load and diminish damage to the inner surface of the die used, each of the capsules having a cross sectional form corresponding to a divided segment of the cross section of an HIP treatment container, then placing the capsules into the HIP treatment container, subsequently filling the HIP treatment container with a metal powder as a filler, thereafter degassing and sealing the HIP treatment container and subjecting the container to an HIP treatment in its entirety. The process precludes scattering of the radioactive substance from the waste and release of waste fragments to assure improved safety.Type: GrantFiled: January 31, 1989Date of Patent: May 29, 1990Assignees: Kabushiki Kaisha Kobe Seiko Sho, Doryokuro Kakunenryo Kaihatsu JigyodanInventors: Kazuo Kitagawa, Fumiaki Komatsu, Takayoshi Masaki, Yoshihisa Sawada, Eiichi Inada, Masao Shiatsuki