Patents by Inventor Hiroshi Nishitani
Hiroshi Nishitani 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: 11923528Abstract: A positive electrode, a negative electrode, and a non-aqueous electrolyte. The negative electrode includes a negative electrode material, a binder, and a thickener, and the negative electrode material includes a lithium silicate phase, and Si particles dispersed in the lithium silicate phase. The ratio of the Si particles in the negative electrode material is 30 mass % or more. The binder includes a poly(meth)acrylic acid, the thickener includes a carboxyalkyl cellulose, and the amount of the poly(meth)acrylic acid relative to 100 parts by mass of the negative electrode material is 0.1 parts by mass or more and 5 parts by mass or less. The non-aqueous electrolyte includes a lithium salt, a non-aqueous solvent, and an acid that exhibits a pKa of 1 to 30 in water at 25° C. The non-aqueous electrolyte secondary battery can suppress the generation of gas during high-temperature storage, and secure excellent cycle characteristics.Type: GrantFiled: December 20, 2017Date of Patent: March 5, 2024Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Satoshi Nishitani, Hiroshi Minami, Masaki Deguchi
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Patent number: 11617764Abstract: The present invention is a sterile peritoneal dialysis fluid, including an acidic first liquid containing 60.0 to 94.0 g/L of icodextrin and 0 to 2.34 g/L of sodium chloride, and an alkaline second liquid containing an alkaline pH regulator, in which the first liquid after sterilization has a pH of 5.0 to 5.5, the second liquid after sterilization has a pH of 6.5 to 7.5, and a mixture of the first liquid and the second liquid after sterilization has a pH of 6.0 to 7.5. The present invention can provide a peritoneal dialysis fluid containing icodextrin, in which the stability of icodextrin during the heat sterilization and the subsequent storage can be improved to the maximum, and the pH of the peritoneal dialysis fluid is close to the physiological range.Type: GrantFiled: June 26, 2018Date of Patent: April 4, 2023Assignee: TERUMO KABUSHIKI KAISHAInventors: Hirokazu Usami, Yoshihiko Koyama, Hiroshi Nishitani, Tsuyoshi Ariizumi
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Patent number: 11020420Abstract: A biocompatible peritoneal dialysate according to the present invention is a sterilized biocompatible peritoneal dialysate composed of an acidic first solution containing icodextrin and a second solution containing a pH adjuster, wherein the pH after mixing of the sterilized first solution with the sterilized second solution is 6.0 to 7.5.Type: GrantFiled: June 9, 2017Date of Patent: June 1, 2021Assignee: TERUMO KABUSHIKI KAISHAInventors: Hidetomo Nakamoto, Hirokazu Okada, Shinji Oomori, Yuri Jinnouchi, Hiroshi Nishitani
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Patent number: 11020520Abstract: The present invention is a sterile peritoneal dialysis fluid, including an acidic first liquid containing only icodextrin and 0 to 2.34 g/L of sodium chloride, and an alkaline second liquid containing an alkaline pH regulator, in which the first liquid after sterilization has a pH of 5.0 to 5.5, the second liquid after sterilization has a pH of 6.5 to 7.5, and a mixture of the first liquid and the second liquid after sterilization has a pH of 6.0 to 7.5. The present invention can provide a peritoneal dialysis fluid containing icodextrin, in which the stability of icodextrin during the heat sterilization and the subsequent storage can be improved to the maximum, and the pH of the peritoneal dialysis fluid is close to the physiological range.Type: GrantFiled: November 27, 2012Date of Patent: June 1, 2021Assignee: TERUMO KABUSHIKI KAISHAInventors: Hiroshi Nishitani, Hirokazu Usami, Yoshihiko Koyama, Tsuyoshi Ariizumi
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Publication number: 20200101213Abstract: Provided is a sterilized peritoneal dialysis solution which includes an acidic first solution containing icodextrin and a second solution containing 300 to 3,000 mg/L of L-histidine and a pH controlling agent, in which the first solution contains no pH controlling agent, a pH of the first solution after sterilization is 4.0 to 5.3, a pH of the second solution after sterilization is 6.5 to 8.0, and a pH after mixing the first solution and the second solution after sterilization is 6.5 to 7.5.Type: ApplicationFiled: February 16, 2018Publication date: April 2, 2020Applicant: TERUMO KABUSHIKI KAISHAInventors: Hirokazu USAMI, Hiroshi NISHITANI, Tsuyoshi ARIIZUMI
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Publication number: 20190262380Abstract: A biocompatible peritoneal dialysate according to the present invention is a sterilized biocompatible peritoneal dialysate composed of an acidic first solution containing icodextrin and a second solution containing a pH adjuster, wherein the pH after mixing of the sterilized first solution with the sterilized second solution is 6.0 to 7.5.Type: ApplicationFiled: June 9, 2017Publication date: August 29, 2019Applicant: TERUMO KABUSHIKI KAISHAInventors: Hidetomo NAKAMOTO, Hirokazu OKADA, Shinji OOMORI, Yuri JINNOUCHI, Hiroshi NISHITANI
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Publication number: 20180296593Abstract: The present invention is a sterile peritoneal dialysis fluid, including an acidic first liquid containing 60.0 to 94.0 g/L of icodextrin and 0 to 2.34 g/L of sodium chloride, and an alkaline second liquid containing an alkaline pH regulator, in which the first liquid after sterilization has a pH of 5.0 to 5.5, the second liquid after sterilization has a pH of 6.5 to 7.5, and a mixture of the first liquid and the second liquid after sterilization has a pH of 6.0 to 7.5. The present invention can provide a peritoneal dialysis fluid containing icodextrin, in which the stability of icodextrin during the heat sterilization and the subsequent storage can be improved to the maximum, and the pH of the peritoneal dialysis fluid is close to the physiological range.Type: ApplicationFiled: June 26, 2018Publication date: October 18, 2018Applicant: TERUMO KABUSHIKI KAISHAInventors: Hirokazu USAMI, Yoshihiko KOYAMA, Hiroshi NISHITANI, Tsuyoshi ARIIZUMI
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Patent number: 10010563Abstract: The present invention is a sterile peritoneal dialysis fluid, including an acidic first liquid containing 60.0 to 94.0 g/L of icodextrin and 0 to 2.34 g/L of sodium chloride, and an alkaline second liquid containing an alkaline pH regulator, in which the first liquid after sterilization has a pH of 5.0 to 5.5, the second liquid after sterilization has a pH of 6.5 to 7.5, and a mixture of the first liquid and the second liquid after sterilization has a pH of 6.0 to 7.5. The present invention can provide a peritoneal dialysis fluid containing icodextrin, in which the stability of icodextrin during the heat sterilization and the subsequent storage can be improved to the maximum, and the pH of the peritoneal dialysis fluid is close to the physiological range.Type: GrantFiled: November 27, 2012Date of Patent: July 3, 2018Assignee: TERUMO KABUSHIKI KAISHAInventors: Hirokazu Usami, Yoshihiko Koyama, Hiroshi Nishitani, Tsuyoshi Ariizumi
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Publication number: 20150250819Abstract: The present invention is a sterile peritoneal dialysis fluid, including an acidic first liquid containing 60.0 to 94.0 g/L of icodextrin and 0 to 2.34 g/L of sodium chloride, and an alkaline second liquid containing an alkaline pH regulator, in which the first liquid after sterilization has a pH of 5.0 to 5.5, the second liquid after sterilization has a pH of 6.5 to 7.5, and a mixture of the first liquid and the second liquid after sterilization has a pH of 6.0 to 7.5. The present invention can provide a peritoneal dialysis fluid containing icodextrin, in which the stability of icodextrin during the heat sterilization and the subsequent storage can be improved to the maximum, and the pH of the peritoneal dialysis fluid is close to the physiological range.Type: ApplicationFiled: November 27, 2012Publication date: September 10, 2015Inventors: Hirokazu Usami, Yoshihiko Koyama, Hiroshi Nishitani, Tsuyoshi Ariizumi
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Publication number: 20150231321Abstract: The present invention is a sterile peritoneal dialysis fluid, including an acidic first liquid containing only icodextrin and 0 to 2.34 g/L of sodium chloride, and an alkaline second liquid containing an alkaline pH regulator, in which the first liquid after sterilization has a pH of 5.0 to 5.5, the second liquid after sterilization has a pH of 6.5 to 7.5, and a mixture of the first liquid and the second liquid after sterilization has a pH of 6.0 to 7.5. The present invention can provide a peritoneal dialysis fluid containing icodextrin, in which the stability of icodextrin during the heat sterilization and the subsequent storage can be improved to the maximum, and the pH of the peritoneal dialysis fluid is close to the physiological range.Type: ApplicationFiled: November 27, 2012Publication date: August 20, 2015Applicant: TERUMO KABUSHIKI KAISHAInventors: Hiroshi Nishitani, Hirokazu Usami, Yoshihiko Koyama, Tsuyoshi Ariizumi
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Patent number: 5635587Abstract: A process for efficiently manufacturing high purity polyarylene sulfide. The process comprises feeding a liquid or gaseous sulfur compound (e.g. hydrogen sulfide) to a mixture comprising lithium hydroxide and a non-lithium hydroxide solid compound (e.g. alkali metal chloride or alkaline earth metal chloride) in a non-protonic organic solvent (e.g. N-methyl-2-pyrrolidone), separating the alkali metal chloride or alkaline earth metal chloride, adjusting the sulfur content of the reaction mixture, feeding a dihalogeno aromatic compound e.g. p-dichlorobenzene) to effect a polycondensation reaction, and adding of an alkali metal hydroxide (e.g. sodium hydroxide) to recover lithium ion.Type: GrantFiled: December 16, 1994Date of Patent: June 3, 1997Assignee: Idemitsu Petrochemical Co., Ltd.Inventors: Yoshinari Koyama, Norio Ogata, Hiroshi Nishitani
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Patent number: 4608150Abstract: The invention provides a novel pitch material useful as a base material of carbon fibers having excellent mechanical properties and characterized by a unique combination of several property parameters including the content of the optically anisotropic phase of at least 80%, a content of the pyridine-insoluble matter in the range from 30 to 70% by weight, a number average molecular weight in the range from 1000 to 1400 and a softening point in the range from 330.degree. to 380.degree. C. Such a pitch material is obtained from a starting pitch of a petroleum-based residual oil freed from light oily matter through a two-step heat treatment, of which the first step is performed at 400.degree. to 460.degree. C. under a pressure of 5 to 50 mmHg and the second step is performed at 450.degree. to 550.degree. C. for 0.2 to 30 minutes under a pressure of 0.1 to 5 mmHg. The advantages obtained by use of a film evaporator in the above mentioned heat treatment are described.Type: GrantFiled: March 11, 1985Date of Patent: August 26, 1986Assignee: Idemitsu Kosan Company LimitedInventors: Masaaki Itoi, Masakatsu Ohta, Taizo Sugioka, Kunio Yoshihara, Hiroshi Nishitani
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Patent number: 3974126Abstract: A heat resistant and impact resistant polycarbonate having a narrow distribution of molecular weight is continuously produced by reacting chloroformate ester, prepared in advance by reacting alkaline solution of dioxy compound in a turbulent flow of the two solutions while cooling and subsequently reacting the mixture concurrently in a laminar flow after the viscosity of the mixture has become significant.Type: GrantFiled: June 25, 1974Date of Patent: August 10, 1976Assignee: Idemitsu, Kosan Kabushiki-KaishaInventors: Yoshihiro Narita, Hideo Konuma, Hiroshi Nishitani, Norio Komori, Katsuharu Ogishima
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Patent number: 3949110Abstract: A method of manufacturing heat shrinkable tubing having one portion thereof in the form of a single tube and the remaining portion thereof in the form of plural tubes. The heat shrinkable tubing is manufactured by extruding a thermoplastic tube and then longitudinally sealing the tube periodically with applied pressure while the tube is heated to form predetermined plural tube lengths. The tube is then subjected to irradiation, heated to at least the softening temperature of the material of the tube and it is then partially inflated and thermoset by cooling to impart heat shrinkable properties to the tube. The heat shrinkable tube so formed is then periodically cut to form a plurality of heat shrinkable tube sections which each consist of a single tube portion and a remaining plural tube portion.Type: GrantFiled: May 7, 1974Date of Patent: April 6, 1976Assignee: Sumitomo Electric Industries, Ltd.Inventors: Toyoshi Nakajima, Keiichi Kojima, Hiroshi Nishitani, Toshifumi Inui