Patents by Inventor Hideki Tanzawa
Hideki Tanzawa 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: 20240113549Abstract: A power supply device includes a power generation element that converts external energy into electrical energy and outputs the electrical energy as a voltage (VEH), a secondary battery that is connected in series with the power generation element and outputs a voltage (VBAT), and a power conversion unit that receives the voltage (VEH) and the voltage (VBAT) and outputs power (POUT) to a load circuit. The power conversion unit includes a voltage conversion unit connected in series with the power generation element and the secondary battery, a power storage unit connected to the voltage conversion unit, an output terminal for connecting the power storage unit to the load circuit, and an output terminal for connecting the power storage unit to the secondary battery.Type: ApplicationFiled: October 13, 2020Publication date: April 4, 2024Inventors: Toru TANZAWA, Hideki UCHIDA
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Publication number: 20170349879Abstract: The present invention provides a method for culturing odontoma cells or normal cells, wherein these cells are cultured in the presence of a Rho kinase inhibitor.Type: ApplicationFiled: July 22, 2015Publication date: December 7, 2017Inventors: Hideki TANZAWA, Katsuhiro UZAWA, Atsushi KASAMATSU
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Patent number: 9494594Abstract: Provided is a method of determining a therapeutic effect of cancer chemotherapy with an anticancer drug obtained by blending three ingredients, i.e., tegafur, gimeracil, and oteracil potassium as active ingredients (hereinafter abbreviated as S-1) quickly, simply, and accurately before carrying out the cancer chemotherapy. Specifically, provided is a method of determining an administration effect in chemotherapy with S-1, the method comprising: a step (a) of measuring expression level of a decorin gene in a biological sample collected from a subject to be diagnosed; and a step (b) of determining an administration effect of S-1 based on the expression level of the gene obtained from the measurement.Type: GrantFiled: March 29, 2013Date of Patent: November 15, 2016Assignee: National University Corporation Chiba UniversityInventors: Hideki Tanzawa, Atsushi Kasamatsu, Katsuhiro Uzawa
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Patent number: 8902546Abstract: A head stack assembly includes a mounting base, a plurality of drive arms connected with the mounting base, and multiple pairs of head gimbal assemblies connected with the drive arms. Each head gimbal assembly includes a thermal assisted magnetic head, the thermal assisted magnetic head has an air bearing surface, a bottom surface opposite to the air bearing surface, and a laser diode module mounted on the bottom surface and adapted to emit a downward laser light to a write element of the thermal assisted magnetic head and an upward laser light, wherein a light shielding structure is provided to prevent the upward laser light emitting to other laser diode modules to generate light coupling, thereby improving thermal stability of the thermal assisted magnetic head.Type: GrantFiled: August 15, 2013Date of Patent: December 2, 2014Assignee: SAE Magnetics (H.K.) Ltd.Inventors: Seiichi Takayama, Hideki Tanzawa, Osamu Harakawa, Takashi Honda, Ryuji Fujii
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Patent number: 8861318Abstract: A thermally assisted magnetic write head includes a waveguide having a first end surface included in an air bearing surface; a magnetic pole having a second end surface included in the air bearing surface; a plasmon generator having a third end surface included in the air bearing surface; a first protective film directly covering a part of the second end surface of the magnetic pole at least; and a second protective film directly covering the first end surface of the waveguide and the third end surface of the plasmon generator. The configuration can reduce recording density and improve thermal stability, furthermore increase the producing yield.Type: GrantFiled: December 5, 2013Date of Patent: October 14, 2014Assignees: SAE Magnetics (H.K.) Ltd., TDK CorporationInventors: Tai Boon Lee, Bing Ma, Wei Liang Chen, Hong Tao Ma, Yasutoshi Fujita, Hideki Tanzawa, Ryuji Fujii, Kei Hirata, Makoto Isogai, Takeshi Tsutsumi
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Patent number: 8811130Abstract: A method of manufacturing a thermally-assisted magnetic head includes aligning the light source unit to the thermally-assisted magnetic head section on the slider body; and performing a bonding between the unit substrate and the slider body with a bonding layer in between. And process of the bonding includes irradiating the bonding layer with a first laser shot, pausing for a time interval after the first laser shot, and then irradiating a second laser shot, wherein a first irradiating power of the first laser shot is weaker than a second irradiating power of the second laser shot, and a first irradiating time of the first laser shot is shorter than a second irradiating time of the second laser shot. The method can keep an accurate alignment of the unit substrate with respect to the slider after a bonding process and, in turns improve performance of the thermally-assisted magnetic head.Type: GrantFiled: September 26, 2013Date of Patent: August 19, 2014Assignee: SAE Magnetics (H.K.) Ltd.Inventors: Seiichi Takayama, Ryuji Fujii, Osamu Harakawa, Hideki Tanzawa, Tadatoshi Koba, Takashi Honda
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Patent number: 8743665Abstract: A manufacturing method of a light source chip for a thermally assisted head comprises steps of (a) providing a light source bar with a surface coating formed thereon; (b) forming several blind holes on the predetermined positions of the light source bar by etching, the blind hole having a top hollowed on the surface coating and a bottom hollowed on the light source bar, and the blind hole having a first biggest width at its top; (c) cutting the light source bar along every two adjacent blind holes by a cutting machine. The cutting machine has a cutting means with a second biggest width that is smaller than the first biggest width of the blind hole, thereby cutting down an individual light source chip without contacting the side edges of the blind hole. Thus a light source chip with a smooth edge and without cracks on the surface can be obtained; and the surface coating formed thereon is hard to be peeled off.Type: GrantFiled: May 29, 2013Date of Patent: June 3, 2014Assignee: SAE Magnetics (H.K.) Ltd.Inventors: Ryuji Fujii, Tai Boon Lee, Hideki Tanzawa, Yasuhiro Konakawa
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Patent number: 8654617Abstract: The thermally-assisted magnetic recording head includes: a laser light source having an emission surface, the emission surface allowing laser light to be emitted therefrom; a waveguide having a core and a cladding, the core allowing the laser light emitted from the laser light source to propagate therethrough, and the cladding surrounding the core; a magnetic pole; and a plasmon generator. Each of the core and the cladding has an end surface facing the emission surface, and the end surface of the cladding suppresses returning of the laser light to the laser light source.Type: GrantFiled: March 21, 2012Date of Patent: February 18, 2014Assignees: TDK Corporation, Sae Magnetics (H.K.) Ltd.Inventors: Eiji Komura, Tsutomu Chou, Koji Shimazawa, Shinji Hara, Ryo Hosoi, Nobuyuki Mori, Yasutoshi Fujita, Hideki Tanzawa
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Patent number: 8588040Abstract: A thermally assisted magnetic head slider includes an air bearing surface facing to a magnetic recording medium, a read portion, and a write portion including a write element, a waveguide for guiding light generated by the light source module, and a plasmon unit provided around the write portion and the waveguide. A first coat layer with a first thickness which has a first light absorption index is covered on an opposed-to-medium surface of the read portion, and a second coat layer with a second thickness which has a second light absorption index is covered on an opposed-to medium surface of the write portion, wherein the second thickness is larger than the first thickness, and the second light absorption index is smaller than the first light absorption index. The slider can protect the write portion and improve the reading performance of the read portion.Type: GrantFiled: December 21, 2012Date of Patent: November 19, 2013Assignees: SAE Magnetics (H.K.) Ltd., TDK CorporationInventors: Yasutoshi Fujita, Ryuji Fujii, Hideki Tanzawa, Natsuo Nishijima, Tai Boon Lee, Jian Hui Huang, Huan Chao Liang, Koji Shimazawa, Kei Hirata, Daisuke Miyauchi
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Publication number: 20130288914Abstract: Provided is a method of determining a therapeutic effect of cancer chemotherapy with an anticancer drug obtained by blending three ingredients, i.e., tegafur, gimeracil, and oteracil potassium as active ingredients (hereinafter abbreviated as S-1) quickly, simply, and accurately before carrying out the cancer chemotherapy. Specifically, provided is a method of determining an administration effect in chemotherapy with S-1, the method comprising: a step (a) of measuring expression level of a decorin gene in a biological sample collected from a subject to be diagnosed; and a step (b) of determining an administration effect of S-1 based on the expression level of the gene obtained from the measurement.Type: ApplicationFiled: March 29, 2013Publication date: October 31, 2013Applicants: Koshinchemical Co., Ltd., National University Corporation Chiba UniversityInventors: Hideki Tanzawa, Atsushi Kasamatsu, Katsuhito Uzawa
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Publication number: 20130258823Abstract: A manufacturing method of a light source chip for a thermally assisted head comprises steps of (a) providing a light source bar with a surface coating formed thereon; (b) forming several blind holes on the predetermined positions of the light source bar by etching, the blind hole having a top hollowed on the surface coating and a bottom hollowed on the light source bar, and the blind hole having a first biggest width at its top; (c) cutting the light source bar along every two adjacent blind holes by a cutting machine The cutting machine has a cutting means with a second biggest width that is smaller than the first biggest width of the blind hole, thereby cutting down an individual light source chip without contacting the side edges of the blind hole. Thus a light source chip with a smooth edge and without cracks on the surface can be obtained; and the surface coating formed thereon is hard to be peeled off.Type: ApplicationFiled: May 29, 2013Publication date: October 3, 2013Applicant: SAE Magnetics (H.K.) Ltd.Inventors: Ryuji FUJII, Tai Boon LEE, Hideki TANZAWA, Yasuhiro KONAKAWA
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Publication number: 20130250742Abstract: The thermally-assisted magnetic recording head includes: a laser light source having an emission surface, the emission surface allowing laser light to be emitted therefrom; a waveguide having a core and a cladding, the core allowing the laser light emitted from the laser light source to propagate therethrough, and the cladding surrounding the core; a magnetic pole; and a plasmon generator. Each of the core and the cladding has an end surface facing the emission surface, and the end surface of the cladding suppresses returning of the laser light to the laser light source.Type: ApplicationFiled: March 21, 2012Publication date: September 26, 2013Applicants: SAE MAGNETICS (H.K.) LTD., TDK CORPORATIONInventors: Eiji KOMURA, Tsutomu CHOU, Koji SHIMAZAWA, Shinji HARA, Ryo HOSOI, Nobuyuki MORI, Yasutoshi FUJITA, Hideki TANZAWA
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Patent number: 8537643Abstract: A manufacturing method of a light source chip for a thermally assisted head comprises steps of (a) providing a light source bar with a surface coating formed thereon; (b) forming several blind holes on the predetermined positions of the light source bar by etching, the blind hole having a top hollowed on the surface coating and a bottom hollowed on the light source bar, and the blind hole having a first biggest width at its top; (c) cutting the light source bar along every two adjacent blind holes by a cutting machine. The cutting machine has a cutting means with a second biggest width that is smaller than the first biggest width of the blind hole, thereby cutting down an individual light source chip without contacting the side edges of the blind hole.Type: GrantFiled: November 25, 2011Date of Patent: September 17, 2013Assignee: SAE Magnetics (H.K.) Ltd.Inventors: Ryuji Fujii, Tai Boon Lee, Hideki Tanzawa, Yasuhiro Konakawa
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Publication number: 20130136885Abstract: A manufacturing method of a light source chip for a thermally assisted head comprises steps of (a) providing a light source bar with a surface coating formed thereon; (b) forming several blind holes on the predetermined positions of the light source bar by etching, the blind hole having a top hollowed on the surface coating and a bottom hollowed on the light source bar, and the blind hole having a first biggest width at its top; (c) cutting the light source bar along every two adjacent blind holes by a cutting machine. The cutting machine has a cutting means with a second biggest width that is smaller than the first biggest width of the blind hole, thereby cutting down an individual light source chip without contacting the side edges of the blind hole.Type: ApplicationFiled: November 25, 2011Publication date: May 30, 2013Applicant: SAE Magnetics (H.K.) Ltd.Inventors: Ryuji FUJII, Tai Boon Lee, Hideki Tanzawa, Yasuhiro Konakawa
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Publication number: 20090208972Abstract: This invention relates to a new cytotoxic protein (M toxin, mucous layer devastating toxin) produced by Helicobacter pylori and the use. This invention provides a cytotoxic protein (M toxin) produced by Helicobacter pylori, a partial peptide, and an antitumor agent containing the cytotoxic protein. The protein is obtained by culturing a transformant which is transformed with a recombination vector containing DNA coding the cytotoxin protein. This invention provides further the use of the protein.Type: ApplicationFiled: April 21, 2008Publication date: August 20, 2009Applicant: FOURIER INC.Inventors: Hiroyuki OHNO, Hiromitsu Saisho, Hideki Tanzawa
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Publication number: 20080233556Abstract: This invention relates to a new cytotoxic protein (M toxin, mucous layer devastating toxin) produced by Helicobacter pylori and the use. This invention provides a cytotoxic protein (M toxin) produced by Helicobacter pylori, a partial peptide, and an antitumor agent containing the cytotoxic protein. The protein is obtained by culturing a transformant which is transformed with a recombination vector containing DNA coding the cytotoxin protein. This invention provides further the use of the protein.Type: ApplicationFiled: April 21, 2008Publication date: September 25, 2008Applicant: FOURIER INC.Inventors: Hiroyuki OHNO, Hiromitsu Saisho, Hideki Tanzawa
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Patent number: 7385035Abstract: This invention relates to a new cytotoxic protein (M toxin, mucous layer devastating toxin) produced by Helicobacter pylori and the use. This invention provides a cytotoxic protein (M toxin) produced by Helicobacter pylori, a partial peptide, and an antitumor agent containing the cytotoxic protein. The protein is obtained by culturing a transformant which is transformed with a recombination vector containing DNA coding the cytotoxin protein. This invention provides further the use of the protein.Type: GrantFiled: December 5, 2002Date of Patent: June 10, 2008Assignee: Fourier Inc.Inventors: Hiroyuki Ohno, Hiromitsu Saisho, Hideki Tanzawa
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Publication number: 20060210575Abstract: This invention relates to a new cytotoxic protein (M toxin, mucous layer devastating toxin) produced by Helicobacter pylori and the use. This invention provides a cytotoxic protein (M toxin) produced by Helicobacter pylori, a partial peptide, and an antitumor agent containing the cytotoxic protein. The protein is obtained by culturing a transformant which is transformed with a recombination vector containing DNA coding the cytotoxin protein. This invention provides further the use of the protein.Type: ApplicationFiled: December 5, 2002Publication date: September 21, 2006Inventors: Hiroyuki Ohno, Hiromitsu Saisho, Hideki Tanzawa