Patents by Inventor Kiyoshi Kawakami
Kiyoshi Kawakami 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).
-
Publication number: 20240085023Abstract: A premixed combustion burner including: an outer tube having an inlet opening on a first side in an axial direction and an outlet opening on a second side in the axial direction; an inner tube formed in a cylindrical shape extending in the axial direction and spaced inside the outer tube, and forming a film air flow path between the inner and outer tubes; and a strut extending inward from the inner wall surface of the outer tube and supporting the inner tube. An end of the inner tube on the first side is located further towards the second side than the outer tube inlet opening. An end of the inner tube on the second side is located further towards the first side than the outlet opening of the outer tube. The outer tube, the strut, and the inner tube are formed with a fuel injection flow path.Type: ApplicationFiled: November 26, 2021Publication date: March 14, 2024Inventors: Kiyoshi FUJIMOTO, Tomo KAWAKAMI, Kenji MIYAMOTO, Keisuke MIURA, Shinichi FUKUBA
-
Publication number: 20120304820Abstract: A process for producing a high-cleanliness steel which can produce, without relying upon a high-cost remelting process, steel products having cleanliness high enough to satisfy requirements for properties of mechanical parts used under severe environmental conditions. The production process comprises the steps of: transferring a molten steel produced in an arc melting furnace or a converter to a ladle furnace to refine the molten steel; subjecting the molten steel to circulation-type degassing; and casting the molten steel into an ingot, wherein, in transferring the molten steel to the ladle furnace, a deoxidizer including aluminum and silicon, is added to previously deoxidize the molten steel, that is, to perform tapping deoxidation before refining in the ladle refining furnace.Type: ApplicationFiled: August 13, 2012Publication date: December 6, 2012Applicant: Sanyo Special Steel Co., Ltd.Inventors: Ichiro Sato, Kaichiro Ishido, Tomomi Mori, Toshihiro Irie, Kazuya Kodama, Kiyoshi Kawakami, Shuhei Kitano
-
Publication number: 20100221966Abstract: A waterproof cloth is provided that solves the problem in durability of the conventional biodegradable plant-derived component resin, such as a polylactic acid resin, and exhibits excellent comfort. The waterproof cloth contains a cloth having formed on one surface thereof by a coating method or a joining method a waterproof layer containing a polyurethane resin film containing from 10 to 65% by weight of a plant-derived component.Type: ApplicationFiled: October 3, 2008Publication date: September 2, 2010Inventors: Kiyoshi Kawakami, Toru Osumi, Masanori Uemoto, Naotaka Nishimura, Takayuki Kouketsu
-
Publication number: 20080257106Abstract: A process for producing a high-cleanliness steel which can produce, without relying upon a high-cost remelting process, steel products having cleanliness high enough to satisfy requirements for properties of mechanical parts used under severe environmental conditions. The production process comprises the steps of: transferring a molten steel produced in an arc melting furnace or a converter to a ladle furnace to refine the molten steel; subjecting the molten steel to circulation-type degassing; and casting the molten steel into an ingot, wherein, in transferring the molten steel to the ladle furnace, a deoxidizer including aluminum and silicon, is added to previously deoxidize the molten steel, that is, to perform tapping deoxidation before refining in the ladle refining furnace.Type: ApplicationFiled: June 10, 2008Publication date: October 23, 2008Applicant: SANYO SPECIAL STEEL CO., LTD.Inventors: Ichiro Sato, Kaichiro Ishido, Tomomi Mori, Toshihiro Irie, Kazuya Kodama, Kiyoshi Kawakami, Shuhei Kitano
-
Patent number: 7396378Abstract: A process for producing a high-cleanliness steel is provided which can produce, without relying upon a high-cost remelting process, steel products having cleanliness high enough to satisfy requirements for properties of mechanical parts used under severe environmental conditions. The production process comprises the steps of: transferring a molten steel produced in an arc melting furnace or a converter to a ladle furnace to refine the molten steel; subjecting the molten steel to circulation-type degassing; and casting the molten steel into an ingot, wherein, in transferring the molten steel to the ladle furnace, a deoxidizer including aluminum and silicon, is added to previously deoxidize the molten steel, that is, to perform tapping deoxidation before refining in the ladle refining furnace.Type: GrantFiled: June 5, 2001Date of Patent: July 8, 2008Assignee: Sanyo Special Steel Co., Ltd.Inventors: Ichiro Sato, Kaichiro Ishido, Tomomi Mori, Toshihiro Irie, Kazuya Kodama, Kiyoshi Kawakami, Shuhei Kitano
-
Publication number: 20080025865Abstract: A process for producing a high-cleanliness steel is provided which can produce, without relying upon a high-cost remelting process, steel products having cleanliness high enough to satisfy requirements for properties of mechanical parts used under severe environmental conditions. The production process comprises the steps of: transferring a molten steel produced in an arc melting furnace or a converter to a ladle furnace to refine the molten steel; subjecting the molten steel to circulation-type degassing; and casting the molten steel into an ingot, wherein, in transferring the molten steel to the ladle furnace, a deoxidizer including aluminum and silicon is added to previously deoxidize the molten steel, that is, to perform tapping deoxidation before refining in the ladle refining furnace.Type: ApplicationFiled: August 21, 2007Publication date: January 31, 2008Applicant: Sanyo Special Steel Co., Ltd.Inventors: Ichiro Sato, Kaichiro Ishido, Tomomi Mori, Toshihiro Irie, Kazuya Kodama, Kiyoshi Kawakami, Shuhei Kitano
-
Patent number: 6916638Abstract: Disclosed is a method for producing glycine, which comprises subjecting an aqueous solution of glycinonitrile to a hydrolysis reaction in a hydrolysis reaction system under the action of a microbial enzyme, thereby converting the glycinonitrile to glycine while by-producing ammonia, wherein the hydrolysis reaction system contains at least one organic impurity compound inhibiting the microbial enzyme, wherein the organic impurity compound has a molecular weight of 95 or more and contains at least one member selected from the group consisting of a nitrile group, a carboxyl group, an amide group, an amino group, a hydroxyl group and a trimethyleneamine structure, and wherein the hydrolysis reaction is performed under conditions wherein, during the hydrolysis reaction, the content of the organic impurity compound inhibiting the microbial enzyme in the hydrolysis reaction system is maintained at a level of 10% by weight or less, based on the weight of the hydrolysis reaction system.Type: GrantFiled: December 27, 2000Date of Patent: July 12, 2005Assignee: Asahi Kasei Kabushiki KaishaInventors: Toshiya Aoki, Kiyoshi Kawakami, Kazumasa Otsubo
-
Patent number: 6759498Abstract: A process for producing a styrenic resin with a small content of low molecular weight components, comprising a continuous anionic polymerization process wherein a raw material system having the following composition (A) is continuously fed, either collectively or in a divided manner, from one end of a reactor tank R1 having a back mixing flow and the product system is continuously discharged from the other end of the reactor tank R1, the internal temperature of the reactor tank R1 being controlled to a range of 40-120° C., the average proportion of styrene monomers to the sum total of the styrene monomers, hydrocarbon solvent and styrenic polymers present in the reactor tank R1 being controlled to less than 10 wt. %, and the resulting styrenic polymer solution being devolatilized and dried: (A) Styrene monomer 1.0 kg Hydrocarbon solvent 0.1-3 kg Organolithium compound 0.5-200 mmoles.Type: GrantFiled: November 8, 2002Date of Patent: July 6, 2004Assignee: Asahi Kadei Kabushiki KaishaInventors: Takeshi Ikematsu, Kiyoshi Kawakami, Hironori Suezawa, Hiroshi Shirai
-
Publication number: 20030181610Abstract: A process for producing a styrenic resin with a small content of low molecular weight components, comprising a continuous anionic polymerization process wherein a raw material system having the following composition (A) is continuously fed, either collectively or in a divided manner, from one end of a reactor tank R1 having a back mixing flow and the product system is continuously discharged from the other end of the reactor tank R1, the internal temperature of the reactor tank R1 being controlled to a range of 40-120° C., the average proportion of styrene monomers to the sum total of the styrene monomers, hydrocarbon solvent and styrenic polymers present in the reactor tank R1 being controlled to less than 10 wt. %, and the resulting styrenic polymer solution being devolatilized and dried: 1 (A) Styrene monomer 1.0 kg Hydrocarbon solvent 0.1-3 kg Organolithium compound 0.Type: ApplicationFiled: November 8, 2002Publication date: September 25, 2003Inventors: Takeshi Ikematsu, Kiyoshi Kawakami, Hironori Suezawa, Hiroshi Shirai
-
Publication number: 20030172773Abstract: A process for producing a high-cleanliness steel is provided which can produce, without relying upon a high-cost remelting process, steel products having cleanliness high enough to satisfy requirements for properties of mechanical parts used under severer environmental conditions. The production process comprises the steps of: transferring a molten steel produced in an arc melting furnace or a converter to a ladle furnace to refine the molten steel; subjecting the molten steel to circulation-type degassing; and casting the molten steel into an ingot, wherein, in transferring the molten steel to the ladle furnace, a deoxidizer including aluminum and silicon, is added to previously deoxidize the molten steel, that is, to perform tapping deoxidation before refining in the ladle refining furnace.Type: ApplicationFiled: December 4, 2002Publication date: September 18, 2003Inventors: Ichiro Sato, Kaichiro Ishido, Tomomi Mori, Toshihiro Irie, Kazuya Kodama, Kiyoshi Kawakami, Shuhei Kitano
-
Publication number: 20030040085Abstract: Disclosed is a method for producing glycine, which comprises subjecting an aqueous solution of glycinonitrile to a hydrolysis reaction in a hydrolysis reaction system under the action of a microbial enzyme, thereby converting the glycinonitrile to glycine while by-producing ammonia, wherein the hydrolysis reaction system contains at least one organic impurity compound inhibiting the microbial enzyme, wherein the organic impurity compound has a molecular weight of 95 or more and contains at least one member selected from the group consisting of a nitrile group, a carboxyl group, an amide group, an amino group, a hydroxyl group and a trimethyleneamine structure, and wherein the hydrolysis reaction is performed under conditions wherein, during the hydrolysis reaction, the content of the organic impurity compound inhibiting the microbial enzyme in the hydrolysis reaction system is maintained at a level of 10% by weight or less, based on the weight of the hydrolysis reaction system.Type: ApplicationFiled: June 17, 2002Publication date: February 27, 2003Inventors: Toshiya Aoki, Kiyoshi Kawakami, Kazumasa Otsubo
-
Patent number: 5574101Abstract: An acrylic resin composition comprising at least one polyamide elastomer consisting of hard segments and soft segments in a specified ratio, an acrylic resin and optionally at least one electrolyte, which has excellent permanent antistatic properties, is good in transparency, has a very faint color, is inexpensive, and is only slightly deteriorated in transparency even when immersed in water.Type: GrantFiled: May 26, 1995Date of Patent: November 12, 1996Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Kiyoshi Kawakami, Yuzuru Ishibashi, Toshio Suzuki
-
Patent number: 5200331Abstract: The present invention relates to a method of producing an amide which comprises subjecting a nitrile to the action of a microorganism belonging to the genus Rhodococcus and having the ability to hydrate the nitrile, and isolating the resulting amide. The microorganism is highly active to a wide variety of nitriles even at low temperatures and, in addition, the hydration reaction of nitriles has a high selectivity for the corresponding amides. Accordingly, this method ensures the production of amides in high yield without formation of by-products such as corresponding carboxylic acids.Type: GrantFiled: January 2, 1990Date of Patent: April 6, 1993Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Kiyoshi Kawakami, Toyozi Tanabe, Osamu Nagano
-
Patent number: 4599145Abstract: Methacrylonitrile higher in purity than that obtained by the conventional process is efficiently produced by the present improved process for producing purified methacrylonitrile in which the reaction mixture formed by the ammoxidation of isobutylene or tert-butyl alcohol is distilled using water as solvent to obtain a crude methacrylonitrile solution which contains methacrylonitrile as major constituent, methacrolein, hydrogen cyanide, and isobutyronitrile, and the crude methacrylonitrile solution is then purified in a product column, wherein the improvement comprises first removing isobutyronitrile from said crude solution, then feeding the remaining solution to the product column, withdrawing from the top a vapor containing methacrolein, condensing the vapor, returning a greater part of the condensate to the product column while removing the remainder from the distillation system, and withdrawing purified methacrylonitrile from the middle or lower section, preferably from a point lower than the feeding staType: GrantFiled: June 20, 1983Date of Patent: July 8, 1986Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Kiyoshi Kawakami, Hiroyuki Ohashi, Tsutomu Katsumata
-
Patent number: 4560611Abstract: A moisture-permeable waterproof coated fabric having a microporous polyurethane layer is obtained by the so-called wet coagulation method using as a coated solution a polar organic solvent solution containing 8 to 25% by weight of a polyurethane elastomer, 0.1 to 10% by weight of a water repellent agent, 0.2 to 3% by weight of polyisocyanate and 1 to 8% by weight of a nonionic surfactant.Type: GrantFiled: October 28, 1983Date of Patent: December 24, 1985Assignee: Toray Industries, IncorporatedInventors: Yasushi Naka, Kiyoshi Kawakami
-
Patent number: 4535008Abstract: A moisture-permeable waterproof coated fabric having a microporous polyurethane layer is obtained by the so-called wet coagulation method using as a coated solution a polar organic solvent solution containing 8 to 25% by weight of a polyurethane elastomer, 0.1 to 10% by weight of a water repellent agent, 0.2 to 3% by weight of polyisocyanate and 1 to 8% by weight of a nonionic surfactant.Type: GrantFiled: October 28, 1983Date of Patent: August 13, 1985Inventors: Yasushi Naka, Kiyoshi Kawakami
-
Patent number: 4429000Abstract: A moisture-permeable waterproof coated fabric having a microporous polyurethane layer is obtained by the so-called wet coagulation method using as a coated solution a polar organic solvent solution containing 8 to 25% by weight of a polyurethane elastomer, 0.1 to 10% by weight of a water repellent agent, 0.2 to 3% by weight of polyisocyanate and 1 to 8% by weight of a nonionic surfactant.Type: GrantFiled: July 24, 1981Date of Patent: January 31, 1984Assignee: Toray Industries, Inc.Inventors: Yasushi Naka, Kiyoshi Kawakami