Patents by Inventor Katsuhiko Kawakami
Katsuhiko 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).
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Patent number: 10130978Abstract: Crude oil is discharged from an oil tank. A nozzle is inserted into a support opening formed in advance on a roof of the oil tank. A cleaning liquid containing LCO is injected from the nozzle over the sludge accumulated inside the oil tank after the crude oil is discharged from the oil tank. The cleaning liquid in which the sludge is dissolved is discharged from the oil tank and is returned to the oil tank for recycle cleaning. Subsequently, the cleaning liquid in which the sludge is dissolved is discharged from the oil tank.Type: GrantFiled: October 16, 2015Date of Patent: November 20, 2018Assignees: SOFTARD INDUSTRIES CO., LTD., JXTG NIPPON OIL & ENERGY CORPORATIONInventors: Katsuhiko Kawakami, Guiqing Xu, Masayuki Kidokoro, Yasuo Uchida, Masanao Kato, Masanao Mitsuhata, Shouzou Sugihara, Tsukasa Mitsuta, Takayuki Nakazawa
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Patent number: 9586189Abstract: A catalyst loading device configured to rotationally spread a catalyst in a reactor includes: a rotor disposed in the reactor and configured to be rotated; a feeder configured to feed the catalyst to the rotor; and an air delivery unit configured to generate an air flow along the catalyst fed to the rotor. The rotor is disposed to a lower end of a cylinder that is concentric with a rotary shaft of the rotor. The cylinder includes: a delivery air feed pipe configured to generate the air flow of delivery air; and a throttle mechanism configured to regulate the delivery air.Type: GrantFiled: February 11, 2016Date of Patent: March 7, 2017Assignee: SOFT AND INDUSTRIES CO., LTD.Inventors: Katsuhiko Kawakami, Masanao Kato, Yasuo Uchida
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Publication number: 20160236164Abstract: A catalyst loading device configured to rotationally spread a catalyst in a reactor includes: a rotor disposed in the reactor and configured to be rotated; a feeder configured to feed the catalyst to the rotor; and an air delivery unit configured to generate an air flow along the catalyst fed to the rotor. The rotor is disposed to a lower end of a cylinder that is concentric with a rotary shaft of the rotor. The cylinder includes: a delivery air feed pipe configured to generate the air flow of delivery air; and a throttle mechanism configured to regulate the delivery air.Type: ApplicationFiled: February 11, 2016Publication date: August 18, 2016Inventors: Katsuhiko Kawakami, Masanao Kato, Yasuo Uchida
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Publication number: 20160107206Abstract: Crude oil is discharged from an oil tank. A nozzle is inserted into a support opening formed in advance on a roof of the oil tank. A cleaning liquid containing LCO is injected from the nozzle over the sludge accumulated inside the oil tank after the crude oil is discharged from the oil tank. The cleaning liquid in which the sludge is dissolved is discharged from the oil tank and is returned to the oil tank for recycle cleaning. Subsequently, the cleaning liquid in which the sludge is dissolved is discharged from the oil tank.Type: ApplicationFiled: October 16, 2015Publication date: April 21, 2016Inventors: Katsuhiko Kawakami, Guiqing Xu, Masayuki Kidokoro, Yasuo Uchida, Masanao Kato, Masanao Mitsuhata, Shouzou Sugihara, Tsukasa Mitsuta, Takayuki Nakazawa
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Patent number: 7959870Abstract: An unloading device includes: a separator connected to a suction hose connected to the reactor and to another suction hose connected to a vacuum car, the separator separating a catalyst sucked from the reactor by the vacuum car from air; a flexible container bag for storing the catalyst dropped from the separator; and a dumping hose provided between the separator and the flexible container bag for transferring the catalyst dropped from the separator to the flexible container bag. The separator includes a blower unit for blowing a gas to the catalyst unloaded in the separator body toward a lower cone and a cover that openably closes a catalyst outlet.Type: GrantFiled: February 24, 2009Date of Patent: June 14, 2011Assignee: Softard Industries Co., Ltd.Inventors: Tomokazu Yanokuchi, Keiichi Yamaguchi, Masayuki Kidokoro, Katsuhiko Kawakami
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Publication number: 20090214403Abstract: An unloading device includes: a separator connected to a suction hose connected to the reactor and to another suction hose connected to a vacuum car, the separator separating a catalyst sucked from the reactor by the vacuum car from air; a flexible container bag for storing the catalyst dropped from the separator; and a dumping hose provided between the separator and the flexible container bag for transferring the catalyst dropped from the separator to the flexible container bag. The separator includes a blower unit for blowing a gas to the catalyst unloaded in the separator body toward a lower cone and a cover that openably closes a catalyst outlet.Type: ApplicationFiled: February 24, 2009Publication date: August 27, 2009Applicant: SOFTARD INDUSTRIES CO., LTD.Inventors: Tomokazu Yanokuchi, Keiichi Yamaguchi, Masayuki Kidokoro, Katsuhiko Kawakami
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Patent number: 7112311Abstract: A cooling method of a hydrotreating plant having a desulfurization section (1) including a furnace (12) for heating liquid to be processed, reactors (14, 15) for hydrotreating sulfur to generate hydrogen sulfide, a hydrogen sulfide absorber (19) for absorbing the hydrogen sulfide generated in the reactors (14, 15), and a compressor (21) for compressing and transferring fluid from the hydrogen sulfide absorber (19) toward the reactors (14, 15), the cooling method comprising the steps of gradually depressurizing the hydrotreating plant at the desulfurization section (1) to a pressure level at which reactor material does not embrittle and gas does not leak due to difference of mechanical thermal expansion in the plant after stopping supply of the liquid to be processed, operating the compressor (21) approximately at the maximum rotation number, and completely extinguishing burners (12A, 12B) in the furnace (12) during plant shutdown operation.Type: GrantFiled: October 31, 2001Date of Patent: September 26, 2006Assignees: Nippon Petroleum Refining Co., Ltd., Softard Industries Co., Ltd.Inventors: Yuji Yoshizumi, Hidekatsu Honda, Masayuki Shoji, Toshihiko Nasu, Katsuhiko Kawakami, Junichi Takano
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Patent number: 6814945Abstract: A catalyst dumping device (10) for unloading a catalyst (50) inside a reactor (1), in which smashed used catalyst is thrown into a dumping pipe (11) formed of a plurality of pipe member (12) provided to the reactor (1) to unload to outside of the reactor (1) by fall by dead weight. Accordingly, the catalyst can be unloaded only by throwing the catalyst into the dumping pipe (11), thereby improving work efficiency. Furthermore, no special apparatus such as a vacuum apparatus is unnecessary, thereby reducing cost for the special apparatus.Type: GrantFiled: February 7, 2001Date of Patent: November 9, 2004Assignee: Softard Industries Co., Ltd.Inventors: Katsuhiko Kawakami, Nobuyoshi Sawamura, Shinichi Nagata
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Publication number: 20020106315Abstract: A cooling method of a hydrotreating plant having a desulfurization section (1) including a furnace (12) for heating liquid to be processed, reactors (14, 15) for hydrotreating sulfur to generate hydrogen sulfide, a hydrogen sulfide absorber (19) for absorbing the hydrogen sulfide generated in the reactors (14, 15), and a compressor (21) for compressing and transferring fluid from the hydrogen sulfide absorber (19) toward the reactors (14, 15), the cooling method comprising the steps of gradually depressurizing the hydrotreating plant at the desulfurization section (1) to a pressure level at which reactor material does not embrittle and gas does not leak due to difference of mechanical thermal expansion in the plant after stopping supply of the liquid to be processed, operating the compressor (21) approximately at the maximum rotation number, and completely extinguishing burners (12A, 12B) in the furnace (12) during plant shutdown operation.Type: ApplicationFiled: October 31, 2001Publication date: August 8, 2002Applicant: TOHOKU OIL CO., LTD.Inventors: Yuji Yoshizumi, Hidekatsu Honda, Masayuki Shoji, Toshihiko Nasu, Katsuhiko Kawakami, Junichi Takano
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Patent number: 6273102Abstract: A repairing method of a petroleum refining plant for efficiently conducting cleaning process of process equipment and pipings, unloading process of agglomerated catalyst, rinsing work of the process equipment and the pipings, thereby reducing plant shutdown time, preventing stress-corrosion cracking by polythionic acid, improving production efficiency, ensuring work safety and reducing production cost, is provided. For the object, the repairing method of the petroleum refining plant of the present invention has a first step of cleaning the process equipment and the pipings and softening agglomerated catalyst inside the process equipment, second step of rinsing the process equipment and the pipings and coating a surface of the softened catalyst by a coating agent, and third step of dumping the coated catalyst from the process equipment and re-rinsing the process equipment and the pipings.Type: GrantFiled: June 14, 1999Date of Patent: August 14, 2001Assignees: Softard Industries Co., Ltd., Nicca Chemical Co., Ltd.Inventors: Katsuhiko Kawakami, Junichi Takano, Guiqing Xu
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Publication number: 20010004451Abstract: A catalyst dumping device (10) for unloading a catalyst (50) inside a reactor (1), in which smashed used catalyst is thrown into a dumping pipe (11) formed of a plurality of pipe member (12) provided to the reactor (1) to unload to outside of the reactor (1) by fall by dead weight. Accordingly, the catalyst can be unloaded only by throwing the catalyst into the dumping pipe (11), thereby improving work efficiency. Furthermore, no special apparatus such as a vacuum apparatus is unnecessary, thereby reducing cost for the special apparatus.Type: ApplicationFiled: February 7, 2001Publication date: June 21, 2001Applicant: Softard Industries Co., Ltd.Inventors: Katsuhiko Kawakami, Nobuyoshi Sawamura, Shinichi Nagata
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Patent number: 6203766Abstract: A catalyst dumping device (10) for unloading a catalyst (50) inside a reactor (1), in which smashed used catalyst is thrown into a dumping pipe (11) formed of a plurality of pipe member (12) provided to the reactor (1) to unload to outside of the reactor (1) by fall by dead weight. Accordingly, the catalyst can be unloaded only by throwing the catalyst into the dumping pipe (11), thereby improving work efficiency. Furthermore, no special apparatus such as a vacuum apparatus is unnecessary, thereby reducing cost for the special apparatus.Type: GrantFiled: February 25, 1999Date of Patent: March 20, 2001Assignee: Softard Industries Co., Ltd.Inventors: Katsuhiko Kawakami, Nobuyoshi Sawamura, Shinichi Nagata
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Patent number: 5736108Abstract: In a hydrogen treating plant which includes a recycle gas line having a reactor for regenerating a hydrogen sulfide by hydrogenating sulfur and an H2S absorber for absorbing the hydrogen sulfide generated in the reactor, and includes the liquid cyclic line circulating liquid for absorbing the hydrogen sulfide in the H2S absorber therein, a refrigerant unit provided in the liquid cyclic line which is lower temperature and lower pressure relative to the recycle gas line.Type: GrantFiled: March 26, 1996Date of Patent: April 7, 1998Assignee: Softard Industries Co., Ltd.Inventors: Katsuhiko Kawakami, Junichi Takano, Nobuyoshi Sawamura
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Patent number: 5413629Abstract: A non-destructive laser marking method including irradiating laser light on a thermosensitive color-forming layer formed by printing with a printing ink containing a leuco dye as a color former and an acidic substance as a color developer, and at least one background color formation inhibitor selected from the group consisting of a water-soluble amino acid, an ammonium salt of an inorganic acid, a pH buffer, and water. Laser marking can be achieved with low energy and at high speed while minimizing background color formation to provide a high-contrast color image.Type: GrantFiled: November 29, 1993Date of Patent: May 9, 1995Assignees: Dainippon Ink and Chemicals, Inc., Kirin/Beer Kabushiki KaishaInventors: Toshihiko Yasui, Yoshio Takimoto, deceased, Katsuhiko Kawakami, Toshiyuki Kiyonari, Norio Endo
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Patent number: 4912071Abstract: The present invention relates to a method of unloading a catalyst from a reactor wherein the reactor is filled with mixed liquid of condensed ring aromatic hydrocarbon having a required number of ring members, i.e. preferably 2 to 4 ring members, and gas oil, to wet the catalyst so as to form a coating of film on the catalyst before unloading the catalyst from the reactor.Type: GrantFiled: October 28, 1987Date of Patent: March 27, 1990Assignees: Kashima Engineering Co., Ltd., Softard Industries Co., Ltd.Inventors: Toyoo Kaijima, Tomiyasu Hirachi, Katsuhiko Kawakami, Junichi Takano
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Patent number: 4268414Abstract: A method for removing and treating waste catalyst resulting from the catalytic reaction of hydrocarbons, characterized by wetting the catalyst with water or a mineral oil containing one or more lactones.Type: GrantFiled: October 29, 1979Date of Patent: May 19, 1981Assignee: Nippon Mining Co., Ltd.Inventors: Katsuhiko Kawakami, Kenji Komori, Hiroshi Megumi
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Patent number: 4155875Abstract: A method of softening or loosening caked catalyst pellets used for the desulfurization of a residual oil regardless of the sizes and shapes of the catalyst pellets and without the need of mechanically crushing the caked catalyst comprising contacting the caked catalyst with a washing oil containing an organic amine and/or ammonia gas absorbed therein.Type: GrantFiled: March 24, 1977Date of Patent: May 22, 1979Assignee: Nippon Mining Co., Ltd.Inventors: Kineo Yamaguchi, Katsuhiko Kawakami, Yukimasa Nakamoto
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Patent number: 4135013Abstract: Equipment used in a substantially water free, but corrosive environment is protected from corrosion by coating only certain welded parts thereof with a metal more base than the metal part coated.Type: GrantFiled: January 31, 1977Date of Patent: January 16, 1979Assignee: Nippon Mining Co., Ltd.Inventors: Kineo Yamaguchi, Katsuhiko Kawakami
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Patent number: 4031031Abstract: A method of removing a catalyst used for catalytic reactions of hydrocarbons from a reaction system for exchange or otherwise comprising treating the catalyst with water or a mineral oil in the presence of a surface active substance or both a surface active substance and a chelating agent to wet the catalyst. This method ensures a safe and simple removal of the catalyst without involving dust scattering, spontaneous combustion or generation of sulfur dioxide gas.Type: GrantFiled: April 30, 1975Date of Patent: June 21, 1977Assignee: Nippon Mining Co., Ltd.Inventors: Kineo Yamaguchi, Katsuhiko Kawakami, Yukimasa Nakamoto