Patents by Inventor Kenji Takizawa
Kenji Takizawa 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: 11827831Abstract: To provide a fluid composition and a refrigerant composition having flammability suppressed; and an air conditioner in which restrictions in order to inhibit combustion of the refrigerant composition are reduced and it is thereby possible to omit or simplify measures for inhibiting combustion of the refrigerant composition. The fluid composition is either a composition (I) comprising at least one component (A) selected from the group consisting of alkanes, halogenated alkanes and alkenes and at least one component (B) selected from halogenated alkenes, or a composition (II) (excluding the composition (I)) comprising two or more ingredients (B) selected from halogenated alkenes. The fluid composition has a combustion inhibiting effect as defined by ?100×{(measured maximum burning velocity)?(estimated maximum burning velocity)}/(estimated maximum burning velocity), of at least 10%.Type: GrantFiled: November 14, 2019Date of Patent: November 28, 2023Assignees: AGC Inc., NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGYInventors: Hidekazu Okamoto, Hiroki Hayamizu, Katsuya Ueno, Hirokazu Takagi, Masato Fukushima, Kenji Takizawa
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Publication number: 20200079985Abstract: To provide a fluid composition and a refrigerant composition having flammability suppressed; and an air conditioner in which restrictions in order to inhibit combustion of the refrigerant composition are reduced and it is thereby possible to omit or simplify measures for inhibiting combustion of the refrigerant composition. The fluid composition is either a composition (I) comprising at least one component (A) selected from the group consisting of alkanes, halogenated alkanes and alkenes and at least one component (B) selected from halogenated alkenes, or a composition (II) (excluding the composition (I)) comprising two or more ingredients (B) selected from halogenated alkenes. The fluid composition has a combustion inhibiting effect as defined by ?100×{(measured maximum burning velocity)?(estimated maximum burning velocity)}/(estimated maximum burning velocity), of at least 10%.Type: ApplicationFiled: November 14, 2019Publication date: March 12, 2020Applicants: AGC Inc., NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGYInventors: Hidekazu OKAMOTO, Hiroki HAYAMIZU, Katsuya UENO, Hirokazu TAKAGI, Masato FUKUSHIMA, Kenji TAKIZAWA
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Publication number: 20180347860Abstract: An object of the present invention is to provide a heat source machine that can reduce the environmental load and can output the thermal energy with high temperature, and a method for operating the heat source machine. A heat source machine of the present invention includes a centrifugal compressor, condensers, expansion valves, and an evaporator, in which a refrigerant enclosed in a refrigerant circulation circuit configured by sequentially connecting the centrifugal compressor, the condensers, the expansion valves, and the evaporator contains a composition A, a composition B, or a composition C, the composition A has 4 or 5 carbon atoms, 6 or more fluorine atoms, and one or more oxygen atoms, the composition B has 4 or 5 carbon atoms and 6 or more fluorine atoms, the composition C has 3 carbon atoms, 2 chlorine atoms, 3 fluorine atoms, and an intramolecular double bond, and the composition A, the composition B, or the composition C has a boiling point of 20° C. or more and a critical temperature of 180° C.Type: ApplicationFiled: February 9, 2017Publication date: December 6, 2018Applicants: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD., CENTRAL GLASS COMPANY, LIMITED.Inventors: Kazuki WAJIMA, Noriyuki MATSUKURA, Kenji UEDA, Naoki KOBAYASHI, Ryosuke SUEMITSU, Yoshinori AKAMATSU, Fuyuhiko SAKYU, Kanako OSAFUNE, Masanori TAMURA, Hiroyuki SUDA, Junji MIZUKADO, Kenji TAKIZAWA, Liang CHEN, Heng-dao QUAN
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Publication number: 20180051198Abstract: To provide a fluid composition and a refrigerant composition having flammability suppressed; and an air conditioner in which restrictions in order to inhibit combustion of the refrigerant composition are reduced and it is thereby possible to omit or simplify measures for inhibiting combustion of the refrigerant composition. The fluid composition is either a composition (I) comprising at least one component (A) selected from the group consisting of alkanes, halogenated alkanes and alkenes and at least one component (B) selected from halogenated alkenes, or a composition (II) (excluding the composition (I)) comprising two or more ingredients (B) selected from halogenated alkenes. The fluid composition has a combustion inhibiting effect as defined by ?100×{(measured maximum burning velocity)?(estimated maximum burning velocity)}/(estimated maximum burning velocity), of at least 10%.Type: ApplicationFiled: October 16, 2017Publication date: February 22, 2018Applicants: ASAHI GLASS COMPANY, LIMITED, NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGYInventors: Hidekazu OKAMOTO, Hiroki HAYAMIZU, Katsuya UENO, Hirokazu TAKAGI, Masato FUKUSHIMA, Kenji TAKIZAWA
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Publication number: 20130310687Abstract: A blood vessel embolization method includes inserting a balloon catheter into a blood vessel of a human or an animal having a lesion site and disposing a balloon of the balloon catheter at a portion located at a proximal side of the blood vessel and in a neighborhood of the lesion site thereof; shutting off a blood flow in the blood vessel by expanding the balloon; discharging a glucose solution from a distal end of the balloon catheter in a state in which the blood flow in the blood vessel is shut off; discharging a cyanoacrylate-based embolization substance-containing liquid from the distal end of the balloon catheter after the glucose solution injection step; hardening an embolization substance by maintaining a blood flow shut-off state of the blood vessel after the embolization substance injection step; and removing the balloon catheter from the blood vessel after the embolization substance-hardening step.Type: ApplicationFiled: May 21, 2012Publication date: November 21, 2013Applicants: TERUMO CLINICAL SUPPLY CO., LTD., ST. MARIANNA UNIVERSITY SCHOOL OF MEDICINEInventors: Kenji TAKIZAWA, Yukihiko Murata
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Publication number: 20120330320Abstract: An outer needle of a bone cement injection puncture needle has first side holes near the tip, and second side holes near the base. When an inner needle is removed from the outer needle and an inner tube is inserted into the outer needle in place thereof, a reduced-pressure passage is formed between the outer needle and the inner tube. When bone cement is injected into a bone, gas and liquid in the bone pass through the reduced-pressure passage and are discharged from the body, thereby preventing increased pressure in the bone. As a result, the bone cement can be prevented from leaking to outside of the bone.Type: ApplicationFiled: March 7, 2011Publication date: December 27, 2012Applicants: Terumo Kabushiki Kaisha, St Marianna University School of MedicineInventors: Kenji Takizawa, Koichi Hayakawa
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Publication number: 20110202065Abstract: A bone cement injection needle comprises: a hollow outer needle; an outer needle hub affixed to the base end part of the outer needle; an inner needle that can be slidably inserted into the hollow part of the outer needle; and an inner needle hub affixed to the base end part of the inner needle. The outer needle comprises a first side hole located near the tip; a second side hole located near the base end part; and a depressurization passage which connects the first side hole and the second side hole.Type: ApplicationFiled: October 16, 2009Publication date: August 18, 2011Applicants: St. Marianna University School of Medicine, Terumo Kabushiki KaishaInventors: Kenji Takizawa, Koichi Hayakawa, Takuya Uno, Makoto Saruhashi