Patents by Inventor Ryoichi Shinjo
Ryoichi Shinjo 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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Publication number: 20090139541Abstract: A gas dissolved water producing apparatus includes a gas dissolving section, a gas channel for guiding a gas into the dissolving section, a first water channel for guiding water into the dissolving section, a gas dissolved water discharge channel, and a second water channel for guiding the water without passing through the dissolving section. The second water channel joins the gas dissolved water discharge channel to control the solution gas dissolved in the gas dissolved water can be controlled to a prescribed level of concentration.Type: ApplicationFiled: December 30, 2008Publication date: June 4, 2009Inventors: Suguru Ozawa, Ryoichi Shinjo, Minoru Harada, Takayuki Saito, Kenichi Sasaki, Kaiichi Murakawa, Kazuhide Shimamura
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Patent number: 6932946Abstract: An ozone generator comprises a pair of spaced opposing electrodes, electrically conductive members connecting the pair of electrodes to a high-voltage alternating-current power source to generate an electric discharge between the electrodes, and a dielectric provided between the opposing electrodes. A gas flow passage for allowing flow of a material gas therethrough is defined by the surfaces of the electrodes. At least one of the surfaces of the pair of electrodes has a plurality of parallel grooves. The material gas flows in a space between the plurality of grooves and the dielectric, in a direction transverse to the grooves.Type: GrantFiled: June 21, 2001Date of Patent: August 23, 2005Assignee: Ebara CorporationInventors: Ryoichi Shinjo, Minoru Harada, Yukiko Nishioka
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Patent number: 6921063Abstract: A gas dissolved water producing apparatus includes a gas dissolving section, a gas channel for guiding a gas into the dissolving section, a first water channel for guiding water into the dissolving section, a gas dissolved water discharge channel, and a second water channel for guiding the water without passing through the dissolving section. The second water channel joins the gas dissolved water discharge channel to control the solution gas dissolved in the gas dissolved water can be controlled to a prescribed level of concentration.Type: GrantFiled: April 17, 2002Date of Patent: July 26, 2005Assignee: Ebara CorporationInventors: Suguru Ozawa, Ryoichi Shinjo, Minoru Harada, Takayuki Saito, Kenichi Sasaki, Keiichi Murakawa, Kazuhide Shimamura
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Publication number: 20050150515Abstract: A gas dissolved water producing apparatus includes a gas dissolving section, a gas channel for guiding a gas into the dissolving section, a first water channel for guiding water into the dissolving section, a gas dissolved water discharge channel, and a second water channel for guiding the water without passing through the dissolving section. The second water channel joins the gas dissolved water discharge channel to control the solution gas dissolved in the gas dissolved water can be controlled to a prescribed level of concentration.Type: ApplicationFiled: February 28, 2005Publication date: July 14, 2005Inventors: Suguru Ozawa, Ryoichi Shinjo, Minoru Harada, Takayuki Saito, Kenichi Sasaki, Keiichi Murakawa, Kazuhide Shimamura
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Publication number: 20040012104Abstract: The object of the present invention is to provide a gas dissolved water producing apparatus which can produce a gas dissolved water 31 having a concentration of a dissolved solution gas 3 not greater than a saturated concentration rapidly and efficiently.Type: ApplicationFiled: December 19, 2002Publication date: January 22, 2004Inventors: Suguru Ozawa, Ryoichi Shinjo, Minoru Harada, Takayuki Saito, Kenichi Sasaki, Keiichi Murakawa, Kazuhide Shimamura
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Publication number: 20020001550Abstract: An ozone generator comprises a pair of spaced opposing electrodes, electrically conductive members connecting the pair of electrodes to a high-voltage alternating-current power source to generate an electric discharge between the electrodes, a dielectric provided between the opposing electrodes, and a gas flow passage for effecting flow of a material gas defined by the surfaces of the electrodes. At least one of the surfaces of the pair of electrodes has a plurality of parallel grooves. The material gas flows in a space between the plurality of grooves and the dielectric, in a direction transverse to the grooves.Type: ApplicationFiled: June 21, 2001Publication date: January 3, 2002Inventors: Ryoichi Shinjo, Minoru Harada, Yukiko Nishioka
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Patent number: 5792326Abstract: Ozonizer (10) which supplies a feed gas to ozone generating cell (11) under application of a high voltage and which delivers an ozone gas through an ozone gas transport path (consisting of pipes (14) and (15)) as it has been generated in said ozone generating cell (11) is characterized in that the ozone gas transport path is furnished with means for removing at least one of NOx, HF and SOx (in the drawings, the means is for removing NOx) and that the ozone gas from the ozone generating cell (11) is passed through said removing means, whereby at least one of NOx, HF and SOx in said ozone gas is removed before it is delivered to a subsequent stage. The product ozone is not contaminated with Cr compounds at all or insufficiently contaminated to cause any practical problems in the fabrication of highly integrated semiconductor devices.Type: GrantFiled: January 13, 1997Date of Patent: August 11, 1998Inventors: Minoru Harada, Ryoichi Shinjo, Manabu Tsujimura, Rempei Nakata, Kunihiro Miyazaki, Naruhiko Kaji, Yutaka Nakano
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Patent number: 5794114Abstract: In an improved ozonizer, at least those parts of an ozone gas delivery path located downstream of an ozone generating cell which are to come into contact with ozone gas are either composed of or coated with at least one ozone-resistant, Cr-free material selected from among aluminum (Al), an aluminum alloy, Teflon, fluorinated nickel, a nickel alloy, a silicon oxide based glass and a high-purity aluminium oxide. The ozonizer is capable of producing ozone that is not contaminated with Cr compounds at all or which is insufficiently contaminated to cause any practical problem in the fabrication of highly integrated semiconductor devices.Type: GrantFiled: August 23, 1995Date of Patent: August 11, 1998Assignees: Ebara Corporation, Kabushiki Kaisha ToshibaInventors: Minoru Harada, Ryoichi Shinjo, Manabu Tsujimura, Rempei Nakata, Kunihiro Miyazaki, Naruhiko Kaji
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Patent number: 5702673Abstract: An ozone generating apparatus produces highly pure ozone gas which can be used in a semiconductor manufacturing process. The ozone generating apparatus comprises a high voltage source, an ozone generating cell which generates ozone gas by supplying a material gas while applying a high voltage from the high voltage source, and a passage for delivering the generated ozone gas from the ozone generating cell to a desired location. The passage comprises a material which has a passivation film formed by a passivation treatment in a dry process. The oxide passivation film comprises chromium oxide film, iron oxide film or a composite film of chromium oxide and iron oxide.Type: GrantFiled: April 17, 1996Date of Patent: December 30, 1997Assignees: Ebara Corporation, Kabushiki Kaisha ToshibaInventors: Naruhiko Kaji, Yutaka Nakano, Rempei Nakata, Minoru Harada, Ryoichi Shinjo, Manabu Tsujimura
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Patent number: 5688289Abstract: An improved method of laundering clothes and textiles comprises: providing a washing machine having a tub furnished with a fixed outer shell 11 and an inner cylinder 12 that is provided within the outer shell 11, that is rotatably supported on a horizontal rotating shaft 13 and that has a plurality of orifices in the outer peripheral wall through which a washing solution can pass; putting the clothes and textiles into the inner cylinder 12; charging the outer shell 11 with a washing solution Q having a polyelectrolyte containing detergent dissolved therein; and laundering the clothes and textiles with ozone gas from an ozonizer 21 being introduced from an ozone gas supply port 24a directly into the washing solution Q at a temperature of from about 40.degree. C. to less than 50.degree. C., preferably from about 40.degree. C. to about 45.degree. C. between the outer shell 11 and inner cylinder 12.Type: GrantFiled: April 25, 1996Date of Patent: November 18, 1997Assignee: Ebara CorporationInventors: Yukiko Nishioka, Ryoichi Shinjo, Yoshihiro Ishii, Tadao Yamanaka
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Patent number: 5632868Abstract: Ozonizer (10) which supplies a feed gas to ozone generating cell (11) under application of a high voltage and which delivers an ozone gas through an ozone gas transport path (consisting of pipes (14) and (15)) as it has been generated in said ozone generating cell (11) is characterized in that the ozone gas transport path is furnished with means for removing at least one of NOx, HF and SOx (in the drawings, the means is for removing NOx) and that the ozone gas from the ozone generating cell (11) is passed through said removing means, whereby at least one of NOx, HF and SOx in said ozone gas is removed before it is delivered to a subsequent stage. The product ozone is not contaminated with Cr compounds at all or insufficiently contaminated to cause any practical problems in the fabrication of highly integrated semiconductor devices.Type: GrantFiled: August 23, 1995Date of Patent: May 27, 1997Assignee: Ebara CorporationInventors: Minoru Harada, Ryoichi Shinjo, Manabu Tsujimura, Rempei Nakata, Kunihiro Miyazaki, Naruhiko Kaji, Yutaka Nakano
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Patent number: 5549874Abstract: A discharge reactor that generates silent discharge and/or creeping discharge between dielectric and high voltage electrode and/or grounded electrode, said dielectric being located between high voltage electrode and grounded electrode, and which generates clean ozone in the discharge space 1 as it passes through said discharge space 1 or as it is held within said discharge space 1, which discharge reactor is characterized in that the dielectric is made of highly purified quartz glass (SiO.sub.2) or single-crystal sapphire which is a highly purified crystallized aluminium oxide or high-purity alumina ceramics which is the firing of highly purified aluminum oxide. Further, in order to obtain cleaner and highly concentration ozone, at least the electrode or electrodes in the area of the discharge space which is to be exposed to discharge are made of a high-purity aluminum material and at least the area of the discharge space which is to be exposed to discharge is further coated with an anodic oxidation film.Type: GrantFiled: April 20, 1993Date of Patent: August 27, 1996Assignee: EBARA CorporationInventors: Ichiro Kamiya, Ryoichi Shinjo, Takeshi Murakami, Yukiko Nishioka, Minoru Harada
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Patent number: 5538695Abstract: In an electric discharge type ozonizer using highly pure oxygen gas having a purity of not lower than 99.99% as a raw material gas, the pressure of a gas in the discharge space of a discharger is raised to a level higher than atmospheric pressure by at least 1.1 kgf/cm.sup.2, and/or in which a liquid-cooled discharger is used, and the temperature of the cooling liquid is set at a level not lower than 15.degree. C., whereby the ozonizer is capable of stably producing ozone gas at a high ozone concentration without causing lowering of the ozone concentration with time.Type: GrantFiled: July 2, 1993Date of Patent: July 23, 1996Assignee: Ebara CorporationInventors: Ryoichi Shinjo, Ichiro Kamiya, Minoru Harada, Yukiko Nishioka
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Patent number: 5511264Abstract: The present invention provides a method for deodorizing and refreshing petroleum group solvent used in a dry cleaning apparatus, and a dry cleaning apparatus using such a method, which can maintain the circulating solvent in a fresh condition for a long time, eliminate a bad smell of the solvent, provide highly stable cleaning ability and good cleaning finish, and prevent ignition and explosion of the solvent to ensure safety.Type: GrantFiled: June 7, 1995Date of Patent: April 30, 1996Assignee: Ebara CorporationInventors: Yukiko Nishioka, Ichiro Kamiya, Ryoichi Shinjo, Yoshihiro Ishii, Koichi Kosaka
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Patent number: 5488842Abstract: The present invention provides a method for deodorizing and refreshing petroleum group solvent used in a dry cleaning apparatus, and a dry cleaning apparatus using such a method, which can maintain the circulating solvent in a fresh condition for a long time, eliminate a bad smell of the solvent, provide highly stable cleaning ability and good cleaning finish, and prevent ignition and explosion of the solvent to ensure safety.Type: GrantFiled: August 24, 1994Date of Patent: February 6, 1996Assignee: Ebara CorporationInventors: Yukiko Nishioka, Ichiro Kamiya, Ryoichi Shinjo, Yoshihiro Ishii, Koichi Kosaka
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Patent number: 5198637Abstract: A ceramic hydrodynamic bearing used as a radial or a thrust bearing in a spindle motor for a hard disk driver. The bearing includes a ceramic bearing base having hydrodynamic pressure generating grooves. A sliding surface of the bearing base is irradiated with an energy beam with a high energy density to remove said material, thereby forming hydrodynamic pressure generating groove, and at the same time the grooves are coated with a modification layer that is formed by melting the ceramic material that constitutes said ceramic bearing base with the energy beam and by solidifying said ceramic bearing base.Type: GrantFiled: December 2, 1991Date of Patent: March 30, 1993Assignee: Ebara CorporationInventors: Yumiko Noda, Ichiro Kamiya, Manabu Toshimitsu, Yoshio Sato, Ryoichi Shinjo