Patents by Inventor Yoshihiko Goto
Yoshihiko Goto 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: 6342640Abstract: The invention relates to a process for producing 1,1,3,3-tetrachloro-1,3-difluoroacetone. This process includes fluorinating hexachloroacetone in a liquid phase by hydrogen fluoride in the presence of a catalyst containing a metal compound. This metal compound can be selected from tin halides, titanium halides, molybdenum halides, tungsten halides, niobium halides, tantalum halides, and iron halides. This process is suitable for producing 1,1,3,3-tetrachloro-1,3-difluoroacetone in an industrial scale.Type: GrantFiled: July 17, 2001Date of Patent: January 29, 2002Assignee: Central Glass Company, LimitedInventors: Ryo Nadano, Yoshihiko Goto
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Publication number: 20020010372Abstract: The invention relates to a process for producing 1,1,3,3-tetrachloro-1,3-difluoroacetone. This process includes fluorinating hexachloroacetone in a liquid phase by hydrogen fluoride in the presence of a catalyst containing a metal compound. This metal compound can be selected from tin halides, titanium halides, molybdenum halides, tungsten halides, niobium halides, tantalum halides, and iron halides. This process is suitable for producing 1,1,3,3-tetrachloro-1,3-difluoroacetone in an industrial scale.Type: ApplicationFiled: July 17, 2001Publication date: January 24, 2002Inventors: Ryo Nadano, Yoshihiko Goto
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Patent number: 6340776Abstract: A process for producing 1,1,1-trifluoroacetone includes the step of conducting a hydrogenolysis of a halogenated trifluoroacetone, which is represented by the general formula (1), by a hydrogen gas in the presence of a catalyst containing a transition metal, where X represents a chlorine, bromine or iodine, and n represents an integer from 1 to 3. It is possible to obtain 1,1,1-trifluoroacetone with a high yield by using the special catalyst.Type: GrantFiled: February 21, 2001Date of Patent: January 22, 2002Assignee: Central Glass Company, LimitedInventors: Yoshihiko Goto, Ryo Nadano, Takashi Sakaya, Takayuki Nishimiya
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Publication number: 20010037041Abstract: A process for producing 1,1,1-trifluoroacetone includes the step of conducting a hydrogenolysis of a halogenated trifluoroacetone, which is represented by the general formula (1), by a hydrogen gas in the presence of a catalyst containing a transition metal, 1Type: ApplicationFiled: February 21, 2001Publication date: November 1, 2001Inventors: Yoshihiko Goto, Ryo Nadano, Takashi Sakaya, Takayuki Nishimiya
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Publication number: 20010031891Abstract: The invention relates to a process for producing an alkali metal salt of a perfluoroalkanesulfinic acid. This process includes the step of bringing a perfluoroalkanesulfonic fluoride into contact with an alkali metal salt of sulfurous acid in the presence of water. This process is useful, since this perfluoroalkanesulfonic fluoride (e.g., trifluoromethanesulfonic fluoride) is easily available.Type: ApplicationFiled: February 21, 2001Publication date: October 18, 2001Inventors: Yoshihiko Goto, Shigenori Sakai, Hiroaki Sakaguchi
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Patent number: 6264412Abstract: A honeycomb panel fixing device includes a honeycomb panel having a through-hole formed through a honeycomb core thereof in its thickness direction, a bushing inserted into the through-hole, and a fixing bolt for fixing the honeycomb panel to a target object by the bushing. The bushing includes a first cylindrical member inserted into the through-hole from the front of the honeycomb panel and having a first hole at a bottom thereof, the fixing bolt being inserted into the first hole, a second cylindrical member inserted into the through-hole from behind the honeycomb panel and having a second hole at a bottom thereof, the fixing bolt being inserted into the second hole, and a detach-prevention member fixed to the fixing bolt in the second cylindrical member and thus engaged with the second cylindrical member.Type: GrantFiled: January 25, 2000Date of Patent: July 24, 2001Assignee: Sakura Rubber Co., Ltd.Inventors: Tetsuya Nakamura, Yoshihiko Goto, Tadashi Torigoe, Makiko Iida
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Patent number: 6262312Abstract: The invention relates to a process for producing 1,1,1-trifluoroacetone. This process includes reacting a halogenated acetone with a metal in the presence of a proton donor. This halogenated acetone is represented by the general formula (1): where X represents a chlorine atom, bromine atom or iodine atom, and n represents an integer from 1 to 3. It is possible to easily obtain 1,1,1-trifluoracetone from the halogenated acetone, which is easily available.Type: GrantFiled: May 26, 2000Date of Patent: July 17, 2001Assignee: Central Glass Company, LimitedInventor: Yoshihiko Goto
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Patent number: 6177595Abstract: A process of producing chlorofluoroacetones represented by a general formula where X represents independently chlorine atom or fluorine atom. The production process comprises fluorinating in a liquid phase pentachloroacetone by hydrogen fluoride in the presence of a catalyst comprising tin tetrahalide.Type: GrantFiled: September 10, 1999Date of Patent: January 23, 2001Assignee: Central Glass Company, LimitedInventors: Ryo Nadano, Takashi Sakaya, Mineo Watanabe, Yoshihiko Goto, Toshihiro Nakamichi, Shigeru Suenaga
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Patent number: 5920244Abstract: An inexpensive and reliable thin-film multilayered electrode which is formable on a dielectric substrate such as a ceramic substrate. A thin-film multilayered electrode has thin-film conductors and thin-film dielectrics formed by alternately layering on a dielectric substrate with a predetermined dielectric constant. The dielectric constant for each of the thin-film dielectrics is selected such that the electromagnetic field created in the dielectric substrate and the electromagnetic field created in each of the thin-film dielectrics are substantially in phase with each other when the thin-film multilayered electrode is used at a predetermined frequency, and the film thickness of each of the thin-film dielectrics falls between 0.2 .mu.m and 2 .mu.m; and the film thickness of each of the thin-film conductors, other than a thin-film conductor formed most distant from the dielectric substrate, is thinner than the skin depth at the predetermined frequency.Type: GrantFiled: January 22, 1997Date of Patent: July 6, 1999Assignee: Murata Manufacturing Co., Ltd.Inventors: Masato Kobayashi, Yoshihiko Goto, Yukio Yoshino, Yuzo Katayama
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Patent number: 5905174Abstract: The invention relates to a method for producing 3,3-dichloro-1,1,1-trifluoroacetone. This method includes a step of fluorinating pentachloroacetone by hydrogen fluoride in the presence of a fluorination catalyst. This fluorination may be conducted in a liquid phase in the presence of an antimony compound as the fluorination catalyst. Alternatively, the fluorination may be conducted in a gas phase in the presence of a fluorination catalyst which may be a fluorinated alumina or at least one compound of at least one metal selected from Al, Cr, Mn, Ni, and Co. The method is suited to an industrial scale production of 3,3-dichloro-1,1,1-trifluoroacetone. The invention further relates to another method for producing 3,3-dichloro-1,1,1-trifluoroacetone.Type: GrantFiled: April 15, 1998Date of Patent: May 18, 1999Assignee: Central Glass Company, LimitedInventors: Masatomi Kanai, Takashi Sakaya, Mineo Watanabe, Yoshihiko Goto, Ryo Nadano
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Patent number: 5830566Abstract: A molded friction material for a damper is disclosed, which contains, as a part of a friction regulating material, porous fibrous particulates having an average particle size of 0.5 to 2 mm and a bulk density of 0.1 to 0.2 g/cm.sup.3 and comprising finely divided ceramic fibers or porous fibrous particulates having an average particle size of 0.1 to 5 mm and a bulk density of 0.2 to 2.0 g/cm.sup.3 and comprising finely divided ceramic fibers, a filler, and a binder. The friction material exhibits excellent performance basically required of a friction material, such as mechanical strength and damping characteristics, and hardly squeaks during damping.Type: GrantFiled: October 13, 1995Date of Patent: November 3, 1998Assignees: Nichias Corporation, Nichias Ceratech CorporationInventors: Kohichi Kimura, Yoshihiko Goto, Nobuhiro Torii, Hiroshi Katagiri, Hideyuki Miyazawa, Yoshiyuki Motoyoshi
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Patent number: 5770988Abstract: A thin-film multilayered electrode of a high frequency electromagnetic field coupled type is disclosed. The thin-film multilayered electrode comprises thin-film conductors and dielectric thin films alternately stacked on a dielectric substrate so that a plurality of TEM mode transmission lines are multilayered. A film thickness of each of the dielectric thin films is set so that phase velocities of TEM waves which propagate through at least two of the plurality of TEM mode transmission lines are made substantially equal to each other, and a film thickness of each of the thin-film conductors is set so as to be smaller than a skin depth of a frequency which is used so that electromagnetic fields of at least two of the plurality of TEM mode transmission lines are coupled with each other.Type: GrantFiled: August 22, 1996Date of Patent: June 23, 1998Assignee: Murata Manufacturing Co., Ltd.Inventors: Yoshihiko Goto, Masato Kobayashi, Yukio Yoshino, Yuzo Katayama
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Patent number: 4939602Abstract: A cassette holder mechanism includes right and left cassette holders independently supporting opposite side marginal portions of a cassette and having guide rollers inserted in guide holes of right and left chassis side walls. Each cassette holder includes a gap at its side portion which engages guide shafts attached to each chassis side wall.Type: GrantFiled: June 10, 1987Date of Patent: July 3, 1990Assignee: Clarion Co., Ltd.Inventors: Kimichika Yamada, Hitoshi Okada, Hidenori Muramatsu, Katsuya Nozawa, Yoshihiko Goto, Hiroyuki Ohkawa
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Patent number: 4849557Abstract: Trifluoromethyltoluene is obtained from a halomethylbenzotrifluoride, which is a relatively inexpensive material, by hydrogenating the halomethyl group of the starting compound to methyl group with hydrogen gas in the presence of a hydrogenation catalyst and an acid acceptor. Suitable examples of the halomethyl group to be hydrogenated are --CH.sub.2 Cl, --CH.sub.2 F, --CHClF, --CClF.sub.2 and --CF.sub.3. When the starting compound is bis(trifluromethyl)benzene, addition of either an alcohol or an alkali metal fluoride to the reaction system is effective for suppression of formation of xylene as a by-product, and xylene still contained in the reaction product can completely be removed by treatment with a sulfonating agent such as fuming sulfuric acid.Type: GrantFiled: May 12, 1988Date of Patent: July 18, 1989Assignee: Central Glass Company, LimitedInventors: Takeshi Kondo, Junji Negishi, Yoshihiko Goto, Matsue Minezaki, Toshikazu Kawai
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Patent number: 4841392Abstract: A tape player having a rotating drum head such as VTR etc. characterized in that a holder, on which at least a guide roller for the tape is mounted outside of the tape path, is disposed movably between its retreated position, where it doesn't interfere with the loading block and the subblock, and its advanced position, where it fronts on the tape path, and is energized towards its retreated position, that control means controlling the movement of the holder arm towards its advanced position is provided, and that an operating member to operate the control means, after this subblock has passed through a position which is occupied by the guide roller in the advanced position of the holder arm, is disposed on the subblock.Type: GrantFiled: October 23, 1986Date of Patent: June 20, 1989Assignee: Clarion Co., Ltd.Inventors: Hidenori Muramatsu, Kimichika Yamada, Katsuya Nozawa, Yoshihiko Goto
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Patent number: 4788609Abstract: A video tape recorder includes a pinch roller mechanism driven by a capstan motor to closely fit to a capstan a tape running from a rotary head. The tape is driven in a selected mode by a reel mechanism driven by a tape loading motor. Different mechanisms and members of the recorder are activated at proper relative timings which are established by a timing control mechanism driven by the capstan motor.Type: GrantFiled: October 17, 1985Date of Patent: November 29, 1988Assignee: Clarion Co., Ltd.Inventors: Kimitika Yamada, Hidenori Muramatsu, Katsuya Nozawa, Yoshihiko Goto
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Patent number: 4785362Abstract: A driving force branching gear mechanism, which is useful for a tape recorder provided with a rotary head, etc., is disclosed, in which a driving gear consisting of two great diameter cam gears fixed to each other in one body and two small diameter cam gears driven by the two great diameter cam gears, repsectively, are disposed and they are so arranged that each of the small diameter cam gears is driven, only when its gear section is in opposition to each of the great diameter cam gears and that its cut-off portion for fixation is located on the projecting portion of the cam section of each of the great diameter cam gears and fixed there, when the cam section of each of the small diameter cam gears is in opposition to the cut-off portion of the gear of each of the great diameter cam gears.Type: GrantFiled: August 7, 1987Date of Patent: November 15, 1988Assignee: Clarion Co., Ltd.Inventors: Katsuya Nozawa, Hidenori Muramatsu, Kimichika Yamada, Hitoshi Okada, Yoshihiko Goto, Hiroyuki Ohkawa