Patents by Inventor Masaru Ohta
Masaru Ohta 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: 20230416709Abstract: It was found that four nuclease domain mutants have nuclease activity superior to that of a wild-type nuclease domain and are capable of enhancing genome editing efficiency in combination with various nucleic acid binding domains.Type: ApplicationFiled: November 4, 2021Publication date: December 28, 2023Applicants: EDITFORCE, INC., Kyushu University, National University CorporationInventors: Yusuke YAGI, Masaru OHTA, Takahiro NAKAMURA
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Publication number: 20090288855Abstract: The positive-type radiation-sensitive resin composition for producing a metal-plating formed material relating to the present invention comprises (A) a polymer containing a structural unit having an acid-dissociative functional group, which is dissociated in the presence of an acid to generate an acidic functional group, and a crosslinking structure; (B) a radiation-sensitive acid generator; and (C) an organic solvent. The positive-type radiation-sensitive resin composition is excellent in sensitivity and resolution, exhibits excellent adhesion to a substrate, leaves no residue at an opening after development, and is capable of preventing occurrence of crack in the resin film after metal plating and push-in of plated metal into the resin film.Type: ApplicationFiled: July 30, 2009Publication date: November 26, 2009Applicant: JSR CORPORATIONInventors: Kouji NISHIKAWA, Kousuke Mori, Masaru Ohta, Shin-ichiro Iwanaga
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Publication number: 20070248905Abstract: The invention concerns a lift-off process for patterning layers that are deposited and/or sputtered. The invention provides a two-layer resist and a patterning method using the resist. The patterning method can readily produce burr-free layers on a substrate. The method comprises the steps of: sequentially applying positive radiation-sensitive resin compositions 1 and 2 to form a two-layer laminate; subjecting the two-layer resist to single exposure and development to produce fine patterns having an undercut cross section; depositing and/or sputtering an organic or inorganic thin layer with use of the resist pattern as a mask; and lifting off the resist pattern to leave a pattern of the thin layer in desired shape.Type: ApplicationFiled: June 14, 2007Publication date: October 25, 2007Applicant: JSR CorporationInventors: Masaru OHTA, Atsushi ITO, Isamu Mochizuki, Katsumi INOMATA, Shin-ichiro IWANAGA
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Publication number: 20070237890Abstract: A negative radiation-sensitive two-layer laminated film for forming bumps includes a lower layer that includes a composition including a polymer (A) with a specific structural unit and an organic solvent (B). A process for forming bumps uses the laminated film. The negative radiation-sensitive two-layer laminated film for forming bumps permits excellent printing of a solder paste, is patternable with good configuration, and is easily peeled from a substrate. The bump-forming process using the laminated film provides the same effects.Type: ApplicationFiled: February 18, 2005Publication date: October 11, 2007Applicant: JSR CorporationInventors: Hiroko Sakai, Masaru Ohta, Katsumi Inomata, Shin-ichrio Iwanaga
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Patent number: 7265044Abstract: A process for forming bumps on electrode pads for a wiring board including a substrate and a plurality of electrode pads. The process (a) forms a laminated two-layer film on the wiring board and forms a pattern of apertures at positions corresponding to the electrode pads, the laminated two-layer film including a lower layer containing an alkali-soluble radiation-nonsensitive resin composition and an upper layer containing a negative radiation-sensitive resin composition; (b) fills a low-melting metal in the aperture pattern; (c) reflows the low-melting metal by pressing or heating to form bumps; and (d) peels and removes the laminated two-layer film from the board. The laminated film including two layers with different properties permits high resolution and easy peeling.Type: GrantFiled: August 21, 2003Date of Patent: September 4, 2007Assignee: JSR CorporationInventors: Masaru Ohta, Katsumi Inomata, Shinichiro Iwanaga
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Patent number: 7265266Abstract: The present invention provides a method of increasing salt tolerance in a plant by overexpressing a gene encoding a mutant SOS2 protein in at least one cell type in the plant. The present invention also provides for transgenic plants expressing the mutant SOS2 proteins.Type: GrantFiled: January 24, 2005Date of Patent: September 4, 2007Assignees: Arizona Board of Regents/Behalf of University of Arizona, Consejo Superior de Investigaciones CientificasInventors: Jian-Kang Zhu, Francisco Javier Quintero-Toscano, Jose Manuel Pardo-Prieto, Quansheng Qiu, Karen Sue Schumaker, Masaru Ohta, Changqing Zhang, Yan Guo
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Patent number: 7247420Abstract: The invention concerns a lift-off process for patterning layers that are deposited and/or sputtered. The invention provides a two-layer resist and a patterning method using the resist. The patterning method can readily produce burr-free layers on a substrate. The method comprises the steps of: sequentially applying positive radiation-sensitive resin compositions 1 and 2 to form a two-layer laminate; subjecting the two-layer resist to single exposure and development to produce fine patterns having an undercut cross section; depositing and/or sputtering an organic or inorganic thin layer with use of the resist pattern as a mask; and lifting off the resist pattern to leave a pattern of the thin layer in desired shape.Type: GrantFiled: November 15, 2002Date of Patent: July 24, 2007Assignee: JSR CorporationInventors: Masaru Ohta, Atsushi Ito, Isamu Mochizuki, Katsumi Inomata, Shin-ichiro Iwanaga
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Publication number: 20070031758Abstract: The positive-type radiation-sensitive resin composition for producing a metal-plating formed material relating to the present invention comprises (A) a polymer containing a structural unit having an acid-dissociative functional group, which is dissociated in the presence of an acid to generate an acidic functional group, and a crosslinking structure; (B) a radiation-sensitive acid generator; and (C) an organic solvent. The positive-type radiation-sensitive resin composition is excellent in sensitivity and resolution, exhibits excellent adhesion to a substrate, leaves no residue at an opening after development, and is capable of preventing occurrence of crack in the resin film after metal plating and push-in of plated metal into the resin film.Type: ApplicationFiled: August 2, 2006Publication date: February 8, 2007Applicant: JSR CorporationInventors: Kouji Nishikawa, Kousuke Mori, Masaru Ohta, Shin-ichiro Iwanaga
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Publication number: 20060168698Abstract: The present invention provides a method of increasing salt tolerance in a plant by overexpressing a gene encoding a mutant SOS2 protein in at least one cell type in the plant. The present invention also provides for transgenic plants expressing the mutant SOS2 proteins.Type: ApplicationFiled: January 24, 2005Publication date: July 27, 2006Applicants: Arizona Bd of Regents/Behalf of Univ. of Arizona, CONSEJO SUPERIOR DE INVESTIGACIONES CIENTIFICASInventors: Jian-Kang Zhu, Francisco Quintero-Toscano, Jose Pardo-Prieto, Quansheng Qiu, Karen Shumaker, Masaru Ohta, Changqing Zhang, Yan Guo
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Publication number: 20050277245Abstract: A process for forming bumps on electrode pads for a wiring board including a substrate and a plurality of electrode pads. The process (a) forms a laminated two-layer film on the wiring board and forms a pattern of apertures at positions corresponding to the electrode pads, the laminated two-layer film including a lower layer containing an alkali-soluble radiation-nonsensitive resin composition and an upper layer containing a negative radiation-sensitive resin composition; (b) fills a low-melting metal in the aperture pattern; (c) reflows the low-melting metal by pressing or heating to form bumps; and (d) peels and removes the laminated two-layer film from the board. The laminated film including two layers with different properties permits high resolution and easy peeling.Type: ApplicationFiled: August 21, 2003Publication date: December 15, 2005Inventors: Masaru Ohta, Katsumi Inomata, Shinichiro Iwanaga
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Patent number: 6849302Abstract: There is disclosed a resin-coated metal sheet for a part of electronic machinery and tools, which is a metal sheet coated with a resin on the surface, wherein a resin layer is composed of one or more resin selected from polyester-series, epoxy-series, phenol-series and alkyd-series resins, the resin layer has a 0.1 to 10 ?m thickness, and the resin layer contains 2 to 60 parts by weight of nickel with 0.1 to 100 ?m of an average value in terms of maximum longer diameters, to 100 parts by weight of the resin. The resin-coated aluminum sheet is excellent in anti-fingerprint property and formability, as well as excellent in electric characteristics.Type: GrantFiled: September 22, 2003Date of Patent: February 1, 2005Assignee: The Furukawa Electric Co., Ltd.Inventors: Masaru Ohta, Osamu Kato
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Publication number: 20040131963Abstract: The invention concerns a lift-off process for patterning layers that are deposited and/or sputtered. The invention provides a two-layer resist and a patterning method using the resist. The patterning method can readily produce burr-free layers on a substrate.Type: ApplicationFiled: October 27, 2003Publication date: July 8, 2004Inventors: Masaru Ohta, Atsushi Ito, Isamu Mochizuki, Katsumi Inomata, Shin-ichiro Iwanaga
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Publication number: 20040071959Abstract: There is disclosed a resin-coated metal sheet for a part of electronic machinery and tools, which is a metal sheet coated with a resin on the surface, wherein a resin layer is composed of one or more resin selected from polyester-series, epoxy-series, phenol-series and alkyd-series resins, the resin layer has a 0.1 to 10 &mgr;m thickness, and the resin layer contains 2 to 60 parts by weight of nickel with 0.1 to 100 &mgr;m of an average value in terms of maximum longer diameters, to 100 parts by weight of the resin. The resin-coated aluminum sheet is excellent in anti-fingerprint property and formability, as well as excellent in electric characteristics.Type: ApplicationFiled: September 22, 2003Publication date: April 15, 2004Inventors: Masaru Ohta, Osamu Kato
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Publication number: 20040038148Abstract: The present invention provides a positive type radiation-sensitive resin composition for producing a product formed by plating, which is capable of forming a product formed by plating of a thick film such as a bump or a wiring with high precision and has excellent sensitivity and resolution, and a process for producing a product formed by plating using the composition. The positive type radiation-sensitive resin composition for producing a product formed by plating comprises (A) a polymer having an acid-dissociative functional group which is dissociated by an acid to generate an acid functional group and (B) a component which generates an acid when irradiated with a radiation. This composition is used also for a positive type radiation-sensitive resin film. The product formed by plating is produced by a process including a step wherein electroplating is carried out with the use of a pattern that is formed from the composition or the resin film on the substrate as a mold.Type: ApplicationFiled: August 21, 2002Publication date: February 26, 2004Applicant: JSR CORPORATIONInventors: Masaru Ohta, Atsushi Ito, Shin-Ichiro Iwanaga
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Patent number: 6670031Abstract: There is disclosed a resin-coated metal sheet for a part of electronic machinery and tools, which is a metal sheet coated with a resin on the surface, wherein a resin layer is composed of one or more resin selected from polyester-series, epoxy-series, phenol-series and alkyd-series resins, the resin layer has a 0.1 to 10 &mgr;m thickness, and the resin layer contains 2 to 60 parts by weight of nickel with 0.1 to 100 &mgr;m of an average value in terms of maximum longer diameters, to 100 parts by weight of the resin. The resin-coated aluminum sheet is excellent in anti-fingerprint property and formability, as well as excellent in electric characteristics.Type: GrantFiled: October 26, 2000Date of Patent: December 30, 2003Assignee: The Furukawa Electric Co., Ltd.Inventors: Masaru Ohta, Osamu Kato
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Publication number: 20030233681Abstract: The present invention provides methods and compositions for improving cold acclimation of plants. More specifically, the present invention utilizes overexpression of ICE1 in plants and plant cells.Type: ApplicationFiled: April 30, 2003Publication date: December 18, 2003Applicant: Arizona Bd of Regents/Behalf of Univ. of ArizonaInventors: Jian-Kang Zhu, Viswanathan Chinnusamy, Masaru Ohta, Siddhartha Kanrar, Byeong-ha Lee, Manu Agarwal
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Patent number: 5942369Abstract: A positive photoresist composition including (A) 100 parts by weight of an alkali-soluble novolak resin, and based thereon; (B) 5 to 50 parts by weight of an alkali-soluble acrylic resin containing, as s, 10 to 80% by weight of a unit of a radical-polymerizable compound having an alcoholic hydroxyl group and 3 to 50% by weight of at least one of a unit of a radical-polymerizable compound having a carboxyl group and a unit of a radical-polymerizable compound having a phenolic hydroxyl group; (C) 5 to 100 parts by weight of a quinonediazide group-containing compound; and (D) a solvent, is provided. This composition has a good adhesion to substrates at the time of development and a good plating solution resistance and moreover can be well wetted with plating solutions, can be well developed with alkali developing solutions and can be well stripped from substrates at the resist unexposed areas, and is suited for the formation of thick films suitable as bump forming materials.Type: GrantFiled: January 27, 1998Date of Patent: August 24, 1999Assignee: JSR CorporationInventors: Toshiyuki Ota, Kimiyasu Sano, Masaru Ohta, Hozumi Sato
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Patent number: 5584994Abstract: Pure water discharged from a pure water tank 9 by means of a pump 27 is returned again to the tank 9 through a cyclic water channel 37. Midway in the cyclic water channel 37, a magnetic force generator 31 is provided. In the magnetic force generator 31, permanent magnets are arranged in such a manner that they interpose therebetween three water channels each made of a non-magnetic material and each having a long and narrow section and that magnetic poles of the magnets face each other outside the longer side of the section.Type: GrantFiled: May 25, 1995Date of Patent: December 17, 1996Inventors: Toshimitsu Hattori, Masaru Ohta
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Patent number: 5055375Abstract: A method of forming an image which comprises subjecting an image-forming material comprised of a substrate and a photosensitive layer containing a dye and/or a pigment and a photopolymerizable compound and disposed on the substrate to an image-exposure, thereby to allow the exposure to cause a difference of adhesion between an exposed portion and non-exposed portion in the photosensitive layer, and transferring the image to an image receptor on the basis of the difference of adhesion; wherein the photosensitive layer of the exposed image-forming material and the image receptor are allowed to face each other and directed into the nip between two rollers consisting of an elastic roller and a metallic roller having a surface temperature of between 50.degree. C. and 150.degree. C.Type: GrantFiled: January 4, 1991Date of Patent: October 8, 1991Assignee: Toyo Ink Manufacturing Co., Ltd.Inventors: Masaaki Matsuo, Masujiro Sumita, Isao Hosoi, Hirohumi Aoki, Masaru Ohta
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Patent number: 4835576Abstract: In the negative form of lith type film or photographic printing paper, the ground part is light-untransmissible and image part (letter, pattern) is light-transmissible. Apart from them, pinholes and stains also constitute light-transmissible areas. Although the light-transmissible areas of letter and pattern are necessary, the light-transmissible areas of pinhole and stain are unnecessary. Thus, the unnecessary light-transmissible areas must be distinguished from the necessary light-transmissible areas, and an opaque layer must be provided on the unnecessary areas to make them opaque. Generally, however, the unnecessary light-transmissible areas are minute and many in number, so that their detection and opaquing is a very laborious work. Thus, according to the opaquing method of the present invention, only the necessary light-transmissible area is detected and the other light-transmissible areas are regarded as unnecessary and the latter are stopped out.Type: GrantFiled: October 14, 1987Date of Patent: May 30, 1989Assignee: Toyo Ink Mfg. Co., Ltd.Inventors: Keiji Komori, Masaru Ohta, Takashi Sawada, Masaaki Matsuo