Patents by Inventor Yoshio Igarashi
Yoshio Igarashi 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: 10583510Abstract: A heating and cooling device including: an airtight processing chamber openable to load a member-to-be-processed in the airtight processing chamber; a transfer apparatus to adjust a distance between the member-to-be-processed and a cooling unit that cools the member-to-be-processed, by moving the member-to-be-processed and/or the cooling unit; an induction heating apparatus to heat the member-to-be-processed, including a induction heating coil; a cooling apparatus to cool the member-to-be-processed by cooling the cooling unit; a temperature sensor to determine a temperature of the member-to-be-processed; and a controller to control the induction heating apparatus and the cooling apparatus based on the temperature determined by the temperature sensor.Type: GrantFiled: April 4, 2017Date of Patent: March 10, 2020Assignee: FUJI ELECTRIC CO., LTD.Inventors: Shoji Yokoyama, Takeshi Matsushita, Hiroaki Nakahara, Masaki Takeuchi, Takenori Wada, Masahiro Momose, Masahiro Kikuchi, Yoshio Igarashi, Mitsuhiro Naruse
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Publication number: 20170203377Abstract: A heating and cooling device including: an airtight processing chamber openable to load a member-to-be-processed in the airtight processing chamber; a transfer apparatus to adjust a distance between the member-to-be-processed and a cooling unit that cools the member-to-be-processed, by moving the member-to-be-processed and/or the cooling unit; an induction heating apparatus to heat the member-to-be-processed, including a induction heating coil; a cooling apparatus to cool the member-to-be-processed by cooling the cooling unit; a temperature sensor to determine a temperature of the member-to-be-processed; and a controller to control the induction heating apparatus and the cooling apparatus based on the temperature determined by the temperature sensor.Type: ApplicationFiled: April 4, 2017Publication date: July 20, 2017Applicant: FUJI ELECTRIC CO., LTD.Inventors: Shoji YOKOYAMA, Takeshi Matsushita, Hiroaki Nakahara, Masaki Takeuchi, Takenori Wada, Masahiro Momose, Masahiro Kikuchi, Yoshio Igarashi, Mitsuhiro Naruse
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Patent number: 7794650Abstract: A graphite-containing, heat-resistant cast iron for exhaust equipment members used at temperatures exceeding 800° C., comprising 3.5-5.6% of Si and 1.2-15% of W on a weight basis, and having intermediate layers, in which W and Si are concentrated, in the boundaries of graphite particles and a matrix. An exhaust equipment member formed by this heat-resistant cast iron has an AC1 transformation point is 840° C. or higher when measured from 30° C. at a temperature-elevating speed of 3° C./minute, and a thermal cracking life of 780 cycles or more in a thermal fatigue test, in which heating and cooling are conducted under the conditions of an upper-limit temperature of 840° C., a temperature amplitude of 690° C. and a constraint ratio of 0.25.Type: GrantFiled: November 9, 2004Date of Patent: September 14, 2010Assignee: Hitachi Metals, Ltd.Inventors: Yoshio Igarashi, Seiichi Endo, Masahiro Miyake, Tsunehiro Kawata
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Patent number: 7612097Abstract: Provided are novel pyridine compounds represented by the following formula (7): wherein R1 and R4 may be the same or different and are each a linear or branched alkyl group having 1 to 4 carbon atoms; R2 and R5 are hydrogen atoms, or may be the same or different and are each a halogen atom, lower alkyl group or lower alkoxy group; R3 is a linear or branched alkyl group having 2 to 12 carbon atoms; R6 is a linear or branched alkyl group having 1 to 18 carbon atoms; and Z is a chlorine atom, bromine atom or iodine atom or an OSO2R7 group in which R7 is a lower alkyl group or a substituted or unsubstituted phenyl group. Also provided is their production process, which can easily provide them at low cost from readily-available pyridine compounds as starting raw materials.Type: GrantFiled: November 8, 2004Date of Patent: November 3, 2009Assignees: Tama Kagaku Kogyo Co., Ltd.Inventors: Hiroki Kourai, Yoshio Igarashi, Hirobumi Nobeshima, Satoshi Metoki
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Publication number: 20080308193Abstract: A graphite-containing, heat-resistant cast iron for exhaust equipment members used at temperatures exceeding 800° C., comprising 3.5-5.6% of Si and 1.2-15% of W on a weight basis, and having intermediate layers, in which W and Si are concentrated, in the boundaries of graphite particles and a matrix. An exhaust equipment member formed by this heat-resistant cast iron has an AC transformation point is 840° C. or higher when measured from 30° C. at a temperature-elevating speed of 3° C./minute, and a thermal cracking life of 780 cycles or more in a thermal fatigue test, in which heating and cooling are conducted under the conditions of an upper-limit temperature of 840° C., a temperature amplitude of 690° C. and a constraint ratio of 0.25.Type: ApplicationFiled: November 9, 2004Publication date: December 18, 2008Inventors: Yoshio Igarashi, Seiichi Endo, Masahiro Miyake, Tsunehiro Kawata
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Publication number: 20080198527Abstract: In a surge protection device 40 (40-1 or 40-2) used for a surge protection apparatus, a gas arrester 41 is connected in series with a varister group consisting of a plurality of varisters 42-1 to 42-5 which have high withstand capacity and are connected in parallel to one another and a discharge resistor 43 is connected between both electrodes of the varister group. Besides, since the varister voltages are set higher than the peak value of the AC power supply voltage, the varisters 42-1 to 42-5 are normally insulated from a power supply circuit by the gas arrester 41. Even if an abnormal voltage is applied, since an operating voltage of the varisters 42-1 to 42-5 is set higher than a peak value of the AC power supply voltage, AC power supply current will not flow. Charges stored in the varisters 42-1 to 42-5 are released quickly through the resistor 43, making it possible to prevent the gas arrester 41 from restriking.Type: ApplicationFiled: May 30, 2007Publication date: August 21, 2008Applicant: SANKOSHA CORPORATIONInventors: Shuji Higashi, Yoshio Igarashi, Yukio Uwano, Yasuharu Yamada
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Patent number: 6126713Abstract: An additive for use in producing spheroidal graphite cast iron of the present invention contains a fine particle of magnesium oxide having a purity of 90 weight % or more and at least one selected from the group consisting of a graphite-spheroidizing material, an inoculant and a graphite-spheroidizing inoculant. The fine particle of highly pure magnesium oxide increases the number of nuclei in a melt, and as a result thereof, increases the graphite spheroid count of a spheroidal graphite cast iron being produced. Another additive for use in producing spheroidal graphite cast iron of the present invention contains at least one selected from the group consisting of a graphite-spheroidizing material, an inoculant and a graphite-spheroidizing inoculant, and an oxide of a metal which has, at a temperature of a melt at a time when subjected to a graphite-spheroidizing treatment, an affinity for oxygen smaller than that of a graphite-spheroidizing element being used in the graphite-spheroidizing treatment.Type: GrantFiled: October 23, 1997Date of Patent: October 3, 2000Assignee: Hitachi Metals, Ltd.Inventors: Yoshio Igarashi, Hideharu Nakano, Kenya Matsuyama, Masahiro Takahashi, Senri Okada, Masahide Kawabata, Katsuhiko Kojo, Toshiki Yoshida
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Patent number: 5841000Abstract: A cheap industrial method for making trans-2-bromoindan-1-ol. Trans-2-bromoindan-1-ol represented by Formula (II) is made by hydrolysing 1,2-dibromoindane represented by General Formula (I) (where the configuration of the bromine atoms on position 1 and position 2 can be trans or cis, or it can be a mixture of trans and cis isomers). Trans-2-bromoindan-1-ol represented by Formula (II) can also be made by brominating indene to synthesize 1,2-dibromoindane, and then continuously hydrolysing this 1,2-dibromoindane without isolating it. 1,2-Dibromoindane can also be made by reacting indene with hydrogen bromide in the presence of hydrogen peroxide.Type: GrantFiled: November 19, 1997Date of Patent: November 24, 1998Assignee: Ichikawa Gosei Chemical Co., Ltd.Inventors: Yoshio Igarashi, Shigeru Nakano, Yuzi Konno, Fumihiro Asano
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Patent number: 5760242Abstract: 1,2-di-substituted indan expressed by general formula (I) wherein X is a substituent which can be drawn out under an acidic condition to form a carbocation at 1-position of an indan skeleton, Y is a halogen atom, and X and Y can be in either cis- or trans-configuration forming either a racemic body or an optically active substance; or 1,2-di-substituted indan expressed by general formula (I') wherein X is a substituent which can be drawn out under an acidic condition to form a carbocation at 1-position of an indan skeleton, and X and OH group can be in either cis- or trans-configuration forming either a racemic body or an optically-active substance; or cis-1,2-epoxyindan expressed by general formula (VI) wherein R is phenyl or a lower alkyl group, oxazoline ring is in cis-configuration forming either a racemic body or an optically active substance is reacted, under an acidic condition, with a nitrile expressed by general formula (II) wherein R is phenyl or a lower alkyl group to produce cis-1-aminoindan-2-olType: GrantFiled: December 9, 1996Date of Patent: June 2, 1998Assignee: Ichikawa Gosei Chemical Co., Ltd.Inventors: Yoshio Igarashi, Fumihiro Asano, Makoto Shimoyamada, Masayuki Harada, Shigeru Nakano, Ryoji Iwai, Keisuke Yagami, Yuzi Konno
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Patent number: 5648534Abstract: 1,2-di-substituted indan expressed by general formula (I) wherein X is a substituent which can be drawn out under an acidic condition to form a carbocation at 1-position of an indan skeleton, Y is a halogen atom, and X and Y can be in either cis- or trans-configuration forming either a racemic body or an optically active substance; or 1,2-di-substituted indan expressed by general formula (I') wherein X is a substituent which can be drawn out under an acidic condition to form a carbocation at 1-position of an indan skeleton, and X and OH group can be in either cis- or trans-configuration forming either a racemic body or an optically-active substance; or cis-1,2-epoxyindan expressed by general formula (VI) wherein R is phenyl or a lower alkyl group, oxazoline ring is in cis-configuration forming either a racemic body or an optically active substance is reacted, under an acidic condition, with a nitrile expressed by general formula (II) wherein R is phenyl or a lower alkyl group to produce cis-1-aminoindan-2-olType: GrantFiled: November 30, 1994Date of Patent: July 15, 1997Assignee: Ichikawa Gosei Chemical Co., Ltd.Inventors: Yoshio Igarashi, Fumihiro Asano, Makoto Shimoyamada, Masayuki Harada, Shigeru Nakano, Ryoji Iwai, Keisuke Yagami, Yuzi Konno
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Patent number: 5462612Abstract: An aluminum alloy casting comprising 4.0 to 13.0% of Si, 4.5% or below of Cu, 1.5% or below of Mg, and the rest of Al in weight ratio is produced by a production method which adds a metallic hydride to a molten aluminum alloy for casting at a temperature of liquidus line or above. This method makes the shape of pores generated in the casting circular and fine, and an average crystal grain diameter to be 1/3 or below of a thickness of the casting, thereby, an aluminum alloy casting having excellent airtightness can be produced.Type: GrantFiled: March 25, 1994Date of Patent: October 31, 1995Assignee: Hitachi Metals, Ltd.Inventors: Shigetaka Morita, Yoshio Igarashi, Masanao Suzuki
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Patent number: 5453512Abstract: A 2-amino-3-nitro-5-halogenopyridine is formed from a 2-acylaminopyridine by way of a 2-acylamino-5-halogenopyridine. The 2-acetamido-5-bromopyridine may be formed from the 2-acylaminopyridine by way of a 2-acylaminopyridinium-HBr.sub.3 salt.Type: GrantFiled: December 17, 1993Date of Patent: September 26, 1995Assignee: Ichikawa Gosei Chemical Co., Ltd.Inventors: Yoshio Igarashi, Makoto Shimoyamada, Motoki Takashima, Tetsuya Suzuki
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Patent number: 5290943Abstract: A 2-amino-3-nitro-5-halogenopyridine is formed from a 2-acylaminopyridine by way of a 2-acylamino-5-halogenopyridine. The 2-acetamido-5-bromopyridine may be formed from the 2-acylaminopyridine by way of a 2-acylaminopyridinium-HBr.sub.3 salt.Type: GrantFiled: August 5, 1992Date of Patent: March 1, 1994Assignee: Ichikawa Gosei Chemical Co., Ltd.Inventors: Yoshio Igarashi, Makoto Shimoyamada, Motoki Takashima, Tetsuya Suzuki
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Patent number: 4851946Abstract: When the lightning device is overheated because of its long-time discharge, a conductive member having a low melting point is softened and melted by the overheated tube to short-circuit an air gap between main discharge electrodes. The main discharge electrodes are thus short-circuited to protect the lightning arrester from being overheated and damaged. When discharge function is lost between the main discharge electrodes, air discharge is carried out in the air gap. Electric appliances and machine connected to the lightning arrester can be thus protected from high voltage surge.Type: GrantFiled: October 25, 1988Date of Patent: July 25, 1989Assignee: Sankosha CorporationInventors: Yoshio Igarashi, Tetsumi Jinno
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Patent number: 4645690Abstract: A manufacturing process of Co-Ni magnetic recording media by sputtering Co-Ni thin film layer on a substrate in Argon atmosphere including oxygen or air and heating the thin film to evaporate oxygen or air from the layer to prepare the magnetic recording media appropriate for high density longitudinal recording, wherein on sputtering the substrate is maintained at a temperature of room temperature to 300.degree. C.Type: GrantFiled: February 1, 1985Date of Patent: February 24, 1987Assignee: Hitachi Metals, Ltd.Inventors: Shiro Murakami, Shigeo Fujii, Masayuki Nakao, Yoshio Igarashi, Juro Endo
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Patent number: 4644441Abstract: A pair of main electrodes are airtightly attached to their corresponding end openings of an insulating cylinder so that their discharge surfaces are opposed to each other with a gap between them in the insulating cylinder. An intermediate electrode is airtightly attached to the central portion of the insulating cylinder so that its discharge surface coaxially surrounds the space between the discharge surfaces of the main electrodes and faces the lateral faces of the main electrodes to define the discharge gaps. Electrode activators are contained in cavities or grooves in or on the main electrodes so as to be isolated from the discharge surfaces thereof, or are arranged on one of the respective discharge surfaces of the main and intermediate electrodes.Type: GrantFiled: August 3, 1984Date of Patent: February 17, 1987Assignee: Kabushiki Kaisha SankoshaInventor: Yoshio Igarashi