Patents Assigned to Akita University
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Patent number: 12292382Abstract: A crystallinity measurement device includes a Raman spectroscopy unit configured to acquire a Raman spectrum of resin-containing material including crystalline thermoplastic resin; and an analysis unit configured to calculate crystallinity of the crystalline thermoplastic resin based on an intensity of a low-wavenumber spectrum that is a spectrum in a region of less than 600 cm?1, in the Raman spectrum.Type: GrantFiled: September 20, 2019Date of Patent: May 6, 2025Assignees: MITSUBISHI HEAVY INDUSTRIES, LTD., AKITA UNIVERSITYInventors: Nobuyuki Kamihara, Naomoto Ishikawa, Kiyoka Takagi, Sota Kamo, Makoto Yamaguchi, Mitsutoshi Jikei, Kazuya Matsumoto, Mikio Muraoka
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Publication number: 20240387892Abstract: There is provided a recycled cathode material precursor, including: a metal element ? consisting of at least one of nickel, cobalt and manganese; and a metal element ? consisting of at least one of iron, copper and aluminum, wherein a content of the metal element ? is 0.5 to 20% by mass in the recycled cathode material precursor.Type: ApplicationFiled: June 16, 2022Publication date: November 21, 2024Applicants: DOWA ECO SYSTEM CO., LTD., AKITA UNIVERSITYInventors: Tatsuya YODOSE, Ryoei WATANABE, Yoshihiro HONMA, Seiji KUMAGAI
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Patent number: 11987013Abstract: A method for forming a composite material including reinforcing fibers includes connecting end portions of the reinforcing fibers with equipotential materials to form an electroconductive loop including the reinforcing fibers in the composite material before reaction; and applying a magnetic field in a direction intersecting a plane formed by the electroconductive loop.Type: GrantFiled: January 16, 2020Date of Patent: May 21, 2024Assignees: MITSUBISHI HEAVY INDUSTRIES, LTD., AKITA UNIVERSITYInventors: Toshiyuki Takayanagi, Naomoto Ishikawa, Wataru Nishimura, Nobuyuki Kamihara, Sota Kamo, Kiyoka Takagi, Takashi Ishida, Tomoharu Dengo, Mikio Muraoka, Yukihiro Yoshida
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Publication number: 20240158430Abstract: Provided is a new compound or a salt thereof having improved in vivo efficacy and antitumor activity of a curcumin derivative, and an antitumor activator containing the new compound or the salt thereof as an active ingredient. The compound or a salt thereof is represented by the following general formula. R1 to R4 are substituents selected from a hydrogen atom, a C1-4 lower alkyl group, a hydroxy C1-4 lower alkyl group, a C1-4 lower alkoxy C1-4 lower alkyl group, and a C1-4 lower alkoxy C1-4 lower alkoxy C1-4 lower alkyl group, and R1 to R4 may be the same or different. n is 1 to 6. Sugar is a monosaccharide or a disaccharide.Type: ApplicationFiled: February 25, 2022Publication date: May 16, 2024Applicants: AKITA UNIVERSITY, TOHOKU UNIVERSITYInventors: Hiroyuki SHIBATA, Yoshiharu IWABUCHI
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Patent number: 11970654Abstract: An object of the present invention is to provide an environmentally friendly drilling fluid that has excellent cuttings transport capability and excellent hole cleaning capability. A drilling fluid according to the present disclosure is a drilling fluid containing water, biodegradable fibers, and a thickener. The thickener contains a biodegradable polysaccharide. The content of the biodegradable polysaccharide in the drilling fluid is greater than or equal to 0.01 g/L and less than or equal to 5 g/L.Type: GrantFiled: June 4, 2020Date of Patent: April 30, 2024Assignees: AKITA UNIVERSITY, KANEKA CORPORATIONInventors: Shigemi Naganawa, Ryutaro Mukai
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Publication number: 20240026205Abstract: The present invention is directed to a drilling fluid containing water, biodegradable fibers, and a thickener. The thickener contains a water-absorbing silicate, and the biodegradable fibers have a fiber length of 5.0 to 50 mm.Type: ApplicationFiled: December 3, 2021Publication date: January 25, 2024Applicants: AKITA UNIVERSITY, KANEKA CORPORATIONInventors: Shigemi NAGANAWA, Ryutaro MUKAI
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Patent number: 11873389Abstract: A composition including a fluorine-containing polymer and a silicon-containing compound, wherein the phosphorus content in the composition is 20 ppm or less. Also disclosed is a molded article obtained from the composition, and a second composition containing a fluorine-containing polymer and a silicon-containing polymer, wherein a content of an amide solvent in the composition is less than 1000 ppm.Type: GrantFiled: December 27, 2019Date of Patent: January 16, 2024Assignees: Akita University, DAIKIN INDUSTRIES, LTD.Inventors: Kazuya Matsumoto, Mitsutoshi Jikei, Shushi Yamada, Tsuyoshi Noguchi, Fumihiro Kamiya, Yoshiho Yanagida
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Patent number: 11759755Abstract: A fine bubble generator which is an ultrafine bubble generator includes a side wall whose inner face is cylindrical, and closing walls closing both ends of the side wall, respectively, with a gas-liquid discharge port in one of the closing walls, wherein a fluid inlet port is provided closer to the gas-liquid discharge port than is a midpoint between both closing walls, and the fluid inlet port penetrates the side wall in a tangential direction of the inner face of the side wall, wherein a spiral groove is formed in the inner face of side wall, and wherein the spiral groove has an angle of inclination of 1° to 10°.Type: GrantFiled: January 29, 2021Date of Patent: September 19, 2023Assignees: AKIMOKU IRON WORKS CO., LTD., AKITA UNIVERSITYInventors: Akira Nakagawa, Wataru Sugiyama
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Publication number: 20220228048Abstract: An object of the present invention is to provide an environmentally friendly drilling fluid that has excellent cuttings transport capability and excellent hole cleaning capability. A drilling fluid according to the present disclosure is a drilling fluid containing water, biodegradable fibers, and a thickener. The thickener contains a biodegradable polysaccharide. The content of the biodegradable polysaccharide in the drilling fluid is greater than or equal to 0.01 g/L and less than or equal to 5 g/L.Type: ApplicationFiled: June 4, 2020Publication date: July 21, 2022Applicants: AKITA UNIVERSITY, KANEKA CORPORATIONInventors: Shigemi NAGANAWA, Ryutaro MUKAI
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Publication number: 20220073722Abstract: A composition including a fluorine-containing polymer and a silicon-containing compound, wherein the phosphorus content in the composition is 20 ppm or less. Also disclosed is a molded article obtained from the composition, and a second composition containing a fluorine-containing polymer and a silicon-containing polymer, wherein a content of an amide solvent in the composition is less than 1000 ppm.Type: ApplicationFiled: December 27, 2019Publication date: March 10, 2022Applicants: AKITA UNIVERSITY, DAIKIN INDUSTRIES, LTD.Inventors: Kazuya MATSUMOTO, Mitsutoshi JIKEI, Shushi YAMADA, Tsuyoshi NOGUCHI, Fumihiro KAMIYA, Yoshiho YANAGIDA
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Patent number: 10815369Abstract: The invention provides a composition capable of providing a molded article that has excellent heat resistance and a small weight change against oxygen plasma exposure and fluorine plasma exposure during a semiconductor manufacturing step. The composition contains a fluorine-containing polymer and a hyperbranched polymer of a cage silsesquioxane with a specific structure.Type: GrantFiled: August 8, 2017Date of Patent: October 27, 2020Assignees: Akita University, DAIKIN INDUSTRIES, LTD.Inventors: Kazuya Matsumoto, Mitsutoshi Jikei, Sumito Yamakawa, Tadatake Sakurada, Fumihiro Kamiya, Tsuyoshi Noguchi
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Patent number: 10790086Abstract: Provided is a method of manufacturing a metal nano coil which is suitable for mass production and results in a lower manufacturing cost. The method of manufacturing a metal nano coil includes the steps of: forming, with tension applied to a core member composed of nanofiber of a polymer, a metal thin film on a surface of the core member to fabricate a metal-covered nanofiber; reducing the tension of the metal-covered nanofiber; and heating, with the tension reduced, the metal-covered nanofiber to at or above a boiling point or a thermal decomposition temperature of the polymer and at or below the melting point of the metal thin film to vaporize the core member and shrink the metal thin film into a coil form, so that a hollow metal nano coil is produced.Type: GrantFiled: February 9, 2016Date of Patent: September 29, 2020Assignees: MITSUBISHI HEAVY INDUSTRIES, LTD., AKITA UNIVERSITY, TSUCHIYA CO., LTD.Inventors: Mikio Muraoka, Nobuyuki Kamihara, Naomoto Ishikawa, Toshiyuki Takayanagi, Hideki Horizono, Hiroaki Hayashi, Osamu Yoshida, Kotaro Tsuji
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Patent number: 10647892Abstract: Provided is an adhesive that can provide quick bonding between thermoplastic resins and excellent bond strength, a structure having adhesion provided by the adhesive, and an adhesion method using the adhesive. The adhesive bonds a first member (11) containing a thermoplastic resin or a carbon fiber reinforced thermoplastic resin and a second member (12) containing the thermoplastic resin or the carbon fiber reinforced thermoplastic resin. The adhesive includes a thermoplastic resin as a main component containing a metal nano material that absorbs electromagnetic waves and generates heat.Type: GrantFiled: February 9, 2016Date of Patent: May 12, 2020Assignees: MITSUBISHI HEAVY INDUSTRIES, LTD., AKITA UNIVERSITY, TSUCHIYA CO., LTD.Inventors: Toshiyuki Takayanagi, Naomoto Ishikawa, Hideki Horizono, Nobuyuki Kamihara, Mikio Muraoka, Hiroaki Hayashi, Osamu Yoshida, Kotaro Tsuji
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Patent number: 10377881Abstract: The invention provides a composition capable of providing a molded article that has excellent heat resistance and a small weight change against both fluorine plasma exposure and oxygen plasma exposure during a semiconductor manufacturing step. The composition contains a fluorine-containing polymer and a cage silsesquioxane having a specific structure.Type: GrantFiled: February 17, 2016Date of Patent: August 13, 2019Assignees: Akita University, DAIKIN INDUSTRIES, LTD.Inventors: Kazuya Matsumoto, Mitsutoshi Jikei, Kunio Nishi, Tsuyoshi Noguchi, Fumihiro Kamiya
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Publication number: 20190169415Abstract: The invention provides a composition capable of providing a molded article that has excellent heat resistance and a small weight change against oxygen plasma exposure and fluorine plasma exposure during a semiconductor manufacturing step. The composition contains a fluorine-containing polymer and a hyperbranched polymer of a cage silsesquioxane with a specific structure.Type: ApplicationFiled: August 8, 2017Publication date: June 6, 2019Applicants: AKITA UNIVERSITY, DAIKIN INDUSTRIES, LTD.Inventors: Kazuya MATSUMOTO, Mitsutoshi JIKEI, Sumito YAMAKAWA, Tadatake SAKURADA, Fumihiro KAMIYA, Tsuyoshi NOGUCHI
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Publication number: 20180295818Abstract: It is an object of the present invention to provide a transgenic non-human animal, which can appropriately evaluate properties, pharmacological effects and safety of a molecular targeted substance or targeted drug to a human specific molecule, and to provide a method for producing the transgenic non-human animal, which comprises a gene encoding a human specific molecule and a gene encoding a human Fc? receptor family, both genes being introduced in the animal, thereby expressing the gene encoding a human specific molecule and the gene encoding a human Fc? receptor family.Type: ApplicationFiled: April 28, 2016Publication date: October 18, 2018Applicants: Institute of Immunology Co., Ltd., Akita UniversityInventors: Akira SHIOTA, Tatsuya MIZOROKI, Yuki MORITOKI
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Patent number: 10046220Abstract: A swing analysis device for analyzing a swing of a ball hitting tool includes: an information input unit configured to receive input of acceleration information and angular velocity information detected by a sensor attached to the ball hitting tool; a posture calculation unit configured to calculate posture information of the ball hitting tool in the swing by applying a predetermined filter to the acceleration information and the angular velocity information; a correction unit configured to correct the posture information of the ball hitting tool in the swing based on the posture information of the ball hitting tool at a first time in the swing; and a swing information calculation unit configured to calculate a swing trajectory of the ball hitting tool based on the acceleration information and the posture information of the ball hitting tool corrected by the correction unit.Type: GrantFiled: June 8, 2016Date of Patent: August 14, 2018Assignees: MIZUNO CORPORATION, AKITA UNIVERSITYInventors: Shohei Shibata, Takeshi Naruo, Kiyoshi Hirose
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Patent number: 9920376Abstract: The objective of the present invention is to provide a method and a means of rapidly and reliably detecting lymph node metastasis in cancer or the risk of lymph node metastasis. Specifically, the present invention provides a method and a rapid determination kit for detecting lymph node metastasis in cancer or its risk by identifying a certain genetic polymorphism of the human CRP gene, and it is clinically significant in determining the treatment strategy, because effective prediction/determination can be made regarding lymph node metastasis, which is an important phenomenon in cancer progression.Type: GrantFiled: June 24, 2015Date of Patent: March 20, 2018Assignees: National University Corporation Akita University, ARKAY, Inc.Inventors: Satoru Motoyama, Masatomo Miura, Junichi Ogawa
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Publication number: 20180030246Abstract: The invention provides a composition capable of providing a molded article that has excellent heat resistance and a small weight change against both fluorine plasma exposure and oxygen plasma exposure during a semiconductor manufacturing step. The composition contains a fluorine-containing polymer and a cage silsesquioxane having a specific structure.Type: ApplicationFiled: February 17, 2016Publication date: February 1, 2018Applicants: AKITA UNIVERSITY, DAIKIN INDUSTRIES, LTD.Inventors: Kazuya MATSUMOTO, Mitsutoshi JIKEI, Kunio NISHI, Tsuyoshi NOGUCHI, Fumihiro KAMIYA
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Patent number: 9835619Abstract: Acceleration and automation of immunohistochemical staining are achieved as follows: an automatic electric field immunohistochemical staining apparatus is configured to provided with a sample mounting unit, a solution supply unit, an electric field stifling unit, and a washing unit; the sample mounting unit on which a glass substrate with a tissue specimen fixed thereto is mounted and the electric field stirring unit that includes an upper electrode are operated in coordination to activate an antigen in the tissue specimen; the sample mounting unit and the solution supply unit containing various solutions are operated in coordination to supply a primary-antibody-containing solution to the tissue specimen; the sample mounting unit and the electric field stirring unit are operated in coordination to perform an antigen-antibody reaction of the antigen in the tissue specimen and a primary antibody; and the electric field stirring unit and the washing unit are operated in coordination.Type: GrantFiled: February 20, 2014Date of Patent: December 5, 2017Assignees: Governor of Akita Prefecture, Akita UniversityInventors: Yoichi Akagami, Masami Kagaya, Ryuta Nakamura, Hiroshi Ikeda, Yoshihiro Minamiya, Hiroshi Nanjo