Patents by Inventor Nobuyuki Kasahara
Nobuyuki Kasahara 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: 20230298805Abstract: The semiconductor device of the present invention includes an insulating layer, a high voltage coil and a low voltage coil which are disposed in the insulating layer at an interval in the vertical direction, a low potential portion which is provided in a low voltage region disposed around a high voltage region for the high voltage coil in planar view and is connected with potential lower than the high voltage coil, and an electric field shield portion which is disposed between the high voltage coil and the low voltage region and includes an electrically floated metal member.Type: ApplicationFiled: April 13, 2023Publication date: September 21, 2023Inventors: Kosei OSADA, Isamu NISHIMURA, Tetsuya KAGAWA, Daiki YANAGISHIMA, Toshiyuki ISHIKAWA, Michihiko MIFUJI, Satoshi KAGEYAMA, Nobuyuki KASAHARA
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Patent number: 11657953Abstract: The semiconductor device of the present invention includes an insulating layer, a high voltage coil and a low voltage coil which are disposed in the insulating layer at an interval in the vertical direction, a low potential portion which is provided in a low voltage region disposed around a high voltage region for the high voltage coil in planar view and is connected with potential lower than the high voltage coil, and an electric field shield portion which is disposed between the high voltage coil and the low voltage region and includes an electrically floated metal member.Type: GrantFiled: April 14, 2021Date of Patent: May 23, 2023Assignee: ROHM CO., LTD.Inventors: Kosei Osada, Isamu Nishimura, Tetsuya Kagawa, Daiki Yanagishima, Toshiyuki Ishikawa, Michihiko Mifuji, Satoshi Kageyama, Nobuyuki Kasahara
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Publication number: 20210233700Abstract: The semiconductor device of the present invention includes an insulating layer, a high voltage coil and a low voltage coil which are disposed in the insulating layer at an interval in the vertical direction, a low potential portion which is provided in a low voltage region disposed around a high voltage region for the high voltage coil in planar view and is connected with potential lower than the high voltage coil, and an electric field shield portion which is disposed between the high voltage coil and the low voltage region and includes an electrically floated metal member.Type: ApplicationFiled: April 14, 2021Publication date: July 29, 2021Inventors: Kosei OSADA, Isamu NISHIMURA, Tetsuya KAGAWA, Daiki YANAGISHIMA, Toshiyuki ISHIKAWA, Michihiko MIFUJI, Satoshi KAGEYAMA, Nobuyuki KASAHARA
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Patent number: 11011297Abstract: The semiconductor device of the present invention includes an insulating layer, a high voltage coil and a low voltage coil which are disposed in the insulating layer at an interval in the vertical direction, a low potential portion which is provided in a low voltage region disposed around a high voltage region for the high voltage coil in planar view and is connected with potential lower than the high voltage coil, and an electric field shield portion which is disposed between the high voltage coil and the low voltage region and includes an electrically floated metal member.Type: GrantFiled: February 27, 2020Date of Patent: May 18, 2021Assignee: ROHM CO., LTD.Inventors: Kosei Osada, Isamu Nishimura, Tetsuya Kagawa, Daiki Yanagishima, Toshiyuki Ishikawa, Michihiko Mifuji, Satoshi Kageyama, Nobuyuki Kasahara
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Publication number: 20200203058Abstract: The semiconductor device of the present invention includes an insulating layer, a high voltage coil and a low voltage coil which are disposed in the insulating layer at an interval in the vertical direction, a low potential portion which is provided in a low voltage region disposed around a high voltage region for the high voltage coil in planar view and is connected with potential lower than the high voltage coil, and an electric field shield portion which is disposed between the high voltage coil and the low voltage region and includes an electrically floated metal member.Type: ApplicationFiled: February 27, 2020Publication date: June 25, 2020Inventors: Kosei OSADA, Isamu NISHIMURA, Tetsuya KAGAWA, Daiki YANAGISHIMA, Toshiyuki ISHIKAWA, Michihiko MIFUJI, Satoshi KAGEYAMA, Nobuyuki KASAHARA
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Publication number: 20170287624Abstract: The semiconductor device of the present invention includes an insulating layer, a high voltage coil and a low voltage coil which are disposed in the insulating layer at an interval in the vertical direction, a low potential portion which is provided in a low voltage region disposed around a high voltage region for the high voltage coil in planar view and is connected with potential lower than the high voltage coil, and an electric field shield portion which is disposed between the high voltage coil and the low voltage region and includes an electrically floated metal member.Type: ApplicationFiled: June 15, 2017Publication date: October 5, 2017Applicant: ROHM CO., LTD.Inventors: Kosei OSADA, Isamu NISHIMURA, Tetsuya KAGAWA, Daiki YANAGISHIMA, Toshiyuki ISHIKAWA, Michihiko MIFUJI, Satoshi KAGEYAMA, Nobuyuki KASAHARA
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Patent number: 9697948Abstract: The semiconductor device of the present invention includes an insulating layer, a high voltage coil and a low voltage coil which are disposed in the insulating layer at an interval in the vertical direction, a low potential portion which is provided in a low voltage region disposed around a high voltage region for the high voltage coil in planar view and is connected with potential lower than the high voltage coil, and an electric field shield portion which is disposed between the high voltage coil and the low voltage region and includes an electrically floated metal member.Type: GrantFiled: November 10, 2014Date of Patent: July 4, 2017Assignee: ROHM CO., LTD.Inventors: Kosei Osada, Isamu Nishimura, Tetsuya Kagawa, Daiki Yanagishima, Toshiyuki Ishikawa, Michihiko Mifuji, Satoshi Kageyama, Nobuyuki Kasahara
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Patent number: 9304251Abstract: To provide a plastic optical fiber using amorphous fluorinated polymers whereby transmission loss and bending loss are low, no cracking takes place during stretching, and a wide range of molding conditions is acceptable.Type: GrantFiled: March 3, 2015Date of Patent: April 5, 2016Assignee: Asahi Glass Company, LimitedInventors: Toshiyuki Tanaka, Nobuyuki Kasahara, Masakuni Sato, Hiroshi Yamamoto, Susumu Saito, Tetsuji Shimohira, Yoshinobu Takano, Naoto Ota
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Publication number: 20150344915Abstract: A process for producing a chemical product comprises a first fermentation step wherein fermentation is conducted by supplying a starting material compound and oxygen to a microorganism-containing liquid, to obtain a first fermentation broth containing a chemical product formed by the fermentation, a second fermentation step wherein the first fermentation broth is taken out and used as a second fermentation broth, and fermentation is conducted by supplying oxygen without supplying a starting material compound, so that the concentration of the starting material compound in the second fermentation broth is adjusted to be a concentration (Y) lower than a concentration (X) of the starting material compound in the first fermentation broth, and a separation step wherein the second fermentation broth is separated to obtain a separated liquid containing the chemical product.Type: ApplicationFiled: August 10, 2015Publication date: December 3, 2015Applicant: Asahi Glass Company, LimitedInventors: Takashi SEKIYA, Hiroshi HATANO, Hiroki TANAKA, Nobuyuki KASAHARA
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Publication number: 20150177456Abstract: To provide a plastic optical fiber using amorphous fluorinated polymers whereby transmission loss and bending loss are low, no cracking takes place during stretching, and a wide range of molding conditions is acceptable.Type: ApplicationFiled: March 3, 2015Publication date: June 25, 2015Applicant: Asahi Glass Company, LimitedInventors: Toshiyuki Tanaka, Nobuyuki Kasahara, Masakuni Sato, Hiroshi Yamamoto, Susumu Saito, Tetsuji Shimohira, Yoshinobu Takano, Naoto Ota
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Publication number: 20150137314Abstract: The semiconductor device of the present invention includes an insulating layer, a high voltage coil and a low voltage coil which are disposed in the insulating layer at an interval in the vertical direction, a low potential portion which is provided in a low voltage region disposed around a high voltage region for the high voltage coil in planar view and is connected with potential lower than the high voltage coil, and an electric field shield portion which is disposed between the high voltage coil and the low voltage region and includes an electrically floated metal member.Type: ApplicationFiled: November 10, 2014Publication date: May 21, 2015Applicant: ROHM CO., LTD.Inventors: Kosei OSADA, Isamu NISHIMURA, Tetsuya KAGAWA, Daiki YANAGISHIMA, Toshiyuki ISHIKAWA, Michihiko MIFUJI, Satoshi KAGEYAMA, Nobuyuki KASAHARA
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Publication number: 20150072386Abstract: To provide a method for producing an organic acid, whereby the desired organic acid can be efficiently recovered without necessity for adjusting the pH to a neutral level in the fermentation step. The method for producing an organic acid, comprises a first step of producing an organic acid by fermentation to obtain a crude liquid containing the organic acid and having a pH of from 1 to 5, and a second step of extracting the organic acid from the crude liquid containing the organic acid obtained in the first step by means of an extraction medium containing a C10-30 diester compound and an alkylamine compound to obtain an extract (1).Type: ApplicationFiled: November 12, 2014Publication date: March 12, 2015Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Tatsuhiro . NOGAMI, Nobuyuki KASAHARA, Tsubasa TAKASUGI
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Patent number: 8658746Abstract: To provide an electrolyte polymer for polymer electrolyte fuel cells, made of a perfluorinated polymer having sulfonic groups, characterized in that in a test of immersing 0.1 g of the polymer in 50 g of a fenton reagent solution containing 3% of an aqueous hydrogen peroxide solution and 200 ppm of bivalent iron ions at 40° C. for 16 hours, the amount of eluted fluorine ions detected in the solution is not more than 0.002% of the total amount of fluorine in the polymer immersed. The electrolyte polymer of the present invention has very few unstable terminal groups and has an excellent durability, and therefore, is suitable as a polymer constituting an electrolyte membrane for polymer electrolyte fuel cells and a polymer contained in a catalyst layer.Type: GrantFiled: December 22, 2010Date of Patent: February 25, 2014Assignee: Asahi Glass Company, LimitedInventors: Nobuyuki Kasahara, Atsushi Watakabe, Tetsuji Shimohira, Hisao Kawazoe, Ichiro Terada
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Patent number: 8236213Abstract: A process for producing a perfluoropolymer, the process including extruding a polymer obtained by polymerizing a perfluoromonomer to prepare strands, and bringing a gas comprising from 3 to 50 volume % of fluorine gas into contact with the strands; the process being conducted on an apparatus that includes an extruder for melting and extruding the polymer obtained by polymerizing a perfluoromonomer, a die having a plurality of pores for preparing the strands from the molten polymer extruded, and a fluorination tank for bringing the gas comprising from 3 to 50 volume % of fluorine gas into contact with the strands.Type: GrantFiled: May 15, 2008Date of Patent: August 7, 2012Assignee: Asahi Glass Company, LimitedInventors: Nobuyuki Kasahara, Noriaki Miyaki, Fusaaki Takeo, Satoshi Shiratori
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Publication number: 20120148818Abstract: A fluorine-containing copolymer, containing: chlorotrifluoroethylene monomer units (A); and monomer units (B), which are obtained by polymerizing a monomer selected from the group consisting of (i) a monomer having a formula: CH2?CHCOON(R0)2, wherein each R0 is independently a hydrogen or an alkyl group; (ii) N-vinylcaprolactam; (iii) a monomer having a formula: CH2?CR1CH2OCH2CR2?CH2, wherein R1 and R2 are each independently a hydrogen, a fluorine, or a methyl group; (iv) a monomer having a formula: CH2?CHCH2CH(CH3)—R3, wherein R3 is a linear alkyl group comprising 1 to 7 carbons; and (v) a monomer of methyl 2-fluoroacrylate, wherein a ratio, (A)/((A)+(B)), is from 3 to 99 mol %, a fluorine content of the copolymer is from 15 to 75 mol %, and a molecular weight of the copolymer is from 1,000 to 1,000,000.Type: ApplicationFiled: January 31, 2012Publication date: June 14, 2012Applicant: ASAHI GLASS COMPANY LIMITEDInventors: Safir L. ADAM, Song Li, Shinji Okada, Nobuyuki Kasahara, Katsuya Ueno, Yoshitomi Morizawa, Takashi Okazoe
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Patent number: 8118476Abstract: A gas/liquid mixing equipment of the present invention comprises a stirring vessel 1, a stirring shaft 10 inserted horizontally in the stirring vessel 1 and a helical ribbon impeller 20 attached to the stirring shaft 10, whereby a high gas absorption performance can be secured even with low shearing. Further, a polymer can be produced with high productivity. A gas/liquid mixing method of the present invention is a method which comprises employing the above-mentioned gas/liquid mixing equipment, and a method for producing a polymer of the present invention is a method which comprises polymerizing feed monomers containing gaseous monomers in aqueous solvents, wherein the gaseous monomers and the aqueous solvents are mixed by such a gas/liquid mixing method. A polymer of the present invention is produced by the above-mentioned method for producing a polymer.Type: GrantFiled: September 22, 2005Date of Patent: February 21, 2012Assignee: Asahi Glass Company, LimitedInventors: Nobuyuki Kasahara, Shin Tatematsu, Shigeki Kobayashi, Yasuhiko Matsuoka, Hiroki Nagai, Terence Edwin Attwood, Steven McDonald, Philip David Mackrell, Shigeki Hiraoka
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Patent number: 8026316Abstract: To provide a process for efficiently producing a perfluoropolymer having unstable terminal groups reduced. A process for producing a fluorination-treated perfluoropolymer, which comprises melting a thermoplastic perfluoropolymer to form strands and contacting the polymer strands with a fluorine gas. For fluorination-treatment of the perfluoropolymer, an apparatus 10 is used, which comprises a melt extruder 11 for melting and extruding the perfluoropolymer, a die 12 for forming the melt extruded polymer into continuous strands 1 and a fluorination tank 13 for contacting the continuous strands 1 with a fluorine gas.Type: GrantFiled: November 12, 2009Date of Patent: September 27, 2011Assignee: Asahi Glass Company, LimitedInventors: Nobuyuki Kasahara, Noriaki Miyake
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Publication number: 20110091791Abstract: To provide an electrolyte polymer for polymer electrolyte fuel cells, made of a perfluorinated polymer having sulfonic groups, characterized in that in a test of immersing 0.1 g of the polymer in 50 g of a fenton reagent solution containing 3% of an aqueous hydrogen peroxide solution and 200 ppm of bivalent iron ions at 40° C. for 16 hours, the amount of eluted fluorine ions detected in the solution is not more than 0.002% of the total amount of fluorine in the polymer immersed. The electrolyte polymer of the present invention has very few unstable terminal groups and has an excellent durability, and therefore, is suitable as a polymer constituting an electrolyte membrane for polymer electrolyte fuel cells and a polymer contained in a catalyst layer.Type: ApplicationFiled: December 22, 2010Publication date: April 21, 2011Applicant: Asahi Glass Company, LimitedInventors: Nobuyuki KASAHARA, Atsushi Watakabe, Tetsuji Shimohira, Hisao Kawazoe, Ichiro Terada
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Patent number: 7902311Abstract: To provide an electrolyte polymer for polymer electrolyte fuel cells, made of a perfluorinated polymer having sulfonic groups, characterized in that in a test of immersing 0.1 g of the polymer in 50 g of a fenton reagent solution containing 3% of an aqueous hydrogen peroxide solution and 200 ppm of bivalent iron ions at 40° C. for 16 hours, the amount of eluted fluorine ions detected in the solution is not more than 0.002% of the total amount of fluorine in the polymer immersed. The electrolyte polymer of the present invention has very few unstable terminal groups and has an excellent durability, and therefore, is suitable as a polymer constituting an electrolyte membrane for polymer electrolyte fuel cells and a polymer contained in a catalyst layer.Type: GrantFiled: December 5, 2008Date of Patent: March 8, 2011Assignee: Asahi Glass Company, LimitedInventors: Nobuyuki Kasahara, Atsushi Watakabe, Tetsuji Shimohira, Hisao Kawazoe, Ichiro Terada
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Publication number: 20100063214Abstract: To provide a process for efficiently producing a perfluoropolymer having unstable terminal groups reduced. A process for producing a fluorination-treated perfluoropolymer, which comprises melting a thermoplastic perfluoropolymer to form strands and contacting the polymer strands with a fluorine gas. For fluorination-treatment of the perfluoropolymer, an apparatus 10 is used, which comprises a melt extruder 11 for melting and extruding the perfluoropolymer, a die 12 for forming the melt extruded polymer into continuous strands 1 and a fluorination tank 13 for contacting the continuous strands 1 with a fluorine gas.Type: ApplicationFiled: November 12, 2009Publication date: March 11, 2010Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Nobuyuki Kasahara, Noriaki Miyake