Patents by Inventor Hideyuki Ikoma
Hideyuki Ikoma 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: 9997363Abstract: A method for producing a semiconductor piece includes forming a first groove portion of a front-surface-side groove by anisotropic dry etching from a front surface of a substrate, forming a second groove portion of the front-surface-side groove, the second groove portion being located below and in communication with the first groove portion and having a width wider than a width of the first groove portion, and thinning the substrate from a back surface of the substrate up to the second groove portion. The second groove portion is formed by changing an etching condition of the anisotropic dry etching during the formation of the front-surface-side groove so that the width of the second groove portion is wider than the width of the first groove portion.Type: GrantFiled: August 6, 2015Date of Patent: June 12, 2018Assignee: FUJI XEROX CO., LTD.Inventors: Kenichi Ono, Hideyuki Ikoma, Shogo Komagata, Michiaki Murata, Tsutomu Otsuka
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Patent number: 9754833Abstract: A method for manufacturing a semiconductor chip includes forming at least a portion of a front-side groove by anisotropic dry etching from a front surface of a substrate along a cutting region; forming a modified region in the substrate along the cutting region by irradiating the inside of the substrate with a laser along the cutting region; and dividing the substrate along the cutting region by applying stress to the substrate.Type: GrantFiled: August 4, 2015Date of Patent: September 5, 2017Assignee: FUJI XEROX CO., LTD.Inventors: Takahiro Hashimoto, Kenichi Ono, Michiaki Murata, Hideyuki Ikoma, Tsutomu Otsuka
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Publication number: 20160071767Abstract: A method for manufacturing a semiconductor chip includes forming at least a portion of a front-side groove by anisotropic dry etching from a front surface of a substrate along a cutting region; forming a modified region in the substrate along the cutting region by irradiating the inside of the substrate with a laser along the cutting region; and dividing the substrate along the cutting region by applying stress to the substrate.Type: ApplicationFiled: August 4, 2015Publication date: March 10, 2016Applicant: FUJI XEROX CO., LTD.Inventors: Takahiro HASHIMOTO, Kenichi ONO, Michiaki MURATA, Hideyuki IKOMA, Tsutomu OTSUKA
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Publication number: 20160071733Abstract: A method for producing a semiconductor piece includes forming a first groove portion of a front-surface-side groove by anisotropic dry etching from a front surface of a substrate, forming a second groove portion of the front-surface-side groove, the second groove portion being located below and in communication with the first groove portion and having a width wider than a width of the first groove portion, and thinning the substrate from a back surface of the substrate up to the second groove portion. The second groove portion is formed by changing an etching condition of the anisotropic dry etching during the formation of the front-surface-side groove so that the width of the second groove portion is wider than the width of the first groove portion.Type: ApplicationFiled: August 6, 2015Publication date: March 10, 2016Applicant: FUJI XEROX CO., LTD.Inventors: Kenichi ONO, Hideyuki IKOMA, Shogo KOMAGATA, Michiaki MURATA, Tsutomu OTSUKA
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Patent number: 7799847Abstract: Provided is a water-based ink composition for a writing instrument comprising at least a colorant and water, characterized by comprising an alkylene oxide-added glycerin ester in which a principal skeleton is glycerin and 60 to 150 moles of alkylene oxide is added thereto and in which the glycerin is ester-bonded with a carboxylic acid-containing substance in an amount of 0.1 to 30% by weight based on the total amount of the ink composition.Type: GrantFiled: January 24, 2006Date of Patent: September 21, 2010Assignee: Mitsubishi Pencil Co., Ltd.Inventors: Hideyuki Ikoma, Yusuke Kobayashi
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Publication number: 20100192966Abstract: A process for producing a liquid container that is good in a gas barrier property, transparency, and water repellency. The process includes molding a resin composition comprising: (a) 100 parts by weight of a polyolefin resin; (b) 3 to 40 parts by weight of at least one resin selected from the group consisting of hydrogenated terpene resins, petroleum resins, and hydrogenated petroleum resins; and (c) 0.03 to 5 parts by weight of at least one component selected from the group consisting of silicone oils, fluorosurfactants, and paraffin oils, with their viscosities being 20 to 3000 cSt at 25° C., as determined according to JIS Z 8803.Type: ApplicationFiled: April 9, 2010Publication date: August 5, 2010Applicant: MITSUBISHI PENCIL CO., LTD.Inventors: Satoshi Takahashi, Hisami Tamano, Takeshi Kobayashi, Hideyuki Ikoma, Kenichiro Tachi
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Publication number: 20070116912Abstract: The present invention provides a resin composition for a liquid container that is good in a gas barrier property, transparency, and water and/or repellency. The resin composition of the present invention comprises: (a) 100 parts by weight of a polyolefin resin; (b) 3 to 40 parts by weight of at least one resin selected from the group consisting of hydrogenated terpene resins, petroleum resins, and hydrogenated petroleum resins; and (c) 0.03 to 5 parts by weight of at least one component selected from the group consisting of silicone oils, fluorosurfactants, and paraffin oils, with their viscosities being 20 to 3000 cSt at 25° C., as determined according to JIS Z 8803.Type: ApplicationFiled: November 21, 2006Publication date: May 24, 2007Applicant: MITSUBISHI PENCIL CO., LTD.Inventors: Satoshi Takahashi, Hisami Tamano, Takeshi Kobayashi, Hideyuki Ikoma, Kenichiro Tachi
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Patent number: 7201792Abstract: Provided is a water-based ink composition for a writing instrument comprising at least a colorant and water, wherein a nonionic high molecular surfactant having an alkylene oxide chain as a hydrophilic group and having an average molecular weight of 3000 to 200,000 is added to the ink composition in a range of 0.1 to 30% by weight. The above nonionic high molecular surfactant has preferably an HLB of 8 or more or a cloud point of 50° C. or higher and includes N-polyoxyalkylene-polyalkylenepolyamine and a polyoxyethylene-polyoxypropylene block polymer.Type: GrantFiled: February 26, 2004Date of Patent: April 10, 2007Assignee: Mitsubishi Pencil Co., Ltd.Inventors: Hideyuki Ikoma, Satoshi Sakuma, Junichi Shinozawa
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Publication number: 20060173094Abstract: Provided is a water-based ink composition for a writing instrument comprising at least a colorant and water, characterized by comprising an alkylene oxide-added glycerin ester in which a principal skeleton is glycerin and 60 to 150 moles of alkylene oxide is added thereto and in which the glycerin is ester-bonded with a carboxylic acid-containing substance in an amount of 0.1 to 30% by weight based on the total amount of the ink composition.Type: ApplicationFiled: January 24, 2006Publication date: August 3, 2006Applicant: MITSUBISHI PENCIL CO., LTD.Inventors: Hideyuki Ikoma, Yusuke Kobayashi
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Patent number: 7061518Abstract: An LED print head is arranged opposite to a photosensitive body, consisting of a base body, which is arranged parallel to the axis of the photosensitive body and consists of a large volume base part having an upper face opposite to the photosensitive body and a small volume projection part extending upward from a part of the upper face of the base part, and having a narrow width in the path of the photosensitive body. An LED base panel is fitted on the upper face of the base part, and a lens array is on the part of a side of the projecting part, being arranged between the opposing face of the photosensitive body, and the upper face of the LED base panel. Manufacturing and attaching methods relating to the print head are also disclosed.Type: GrantFiled: May 15, 2002Date of Patent: June 13, 2006Assignee: Suzuka Fuji Xerox Co., Ltd.Inventors: Shunsuke Ueda, Takao Takagi, Setsuo Suzuki, Takeyoshi Horiuchi, Hideyuki Ikoma, Hiromu Ono, Takashi Toyoda, Sayuri Natsui
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Patent number: 6953502Abstract: Provided are a navy blue water based ink composition for a ballpoint pen comprising a colorant, water and a dispersant, wherein at least cobalt phthalocyanine blue is used as the colorant, and a pH of the ink falls in a range of 7 to 10, and a ballpoint pen occulding the water based ink composition. Cobalt phthalocyanine blue has preferably a diameter of 500 nm or more and a content of 0.05 to 30% by weight based on the total amount of the ink composition.Type: GrantFiled: June 27, 2001Date of Patent: October 11, 2005Assignee: Mitsubishi Pencil Kabushiki KaishaInventor: Hideyuki Ikoma
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Publication number: 20040250728Abstract: Provided is a water-based ink composition for a writing instrument comprising at least a colorant and water, wherein a nonionic high molecular surfactant having an alkylene oxide chain as a hydrophilic group and having an average molecular weight of 3000 to 200,000 is added to the ink composition in a range of 0.1 to 30% by weight. The above nonionic high molecular surfactant has preferably an HLB of 8 or more or a cloud point of 50° C. or higher and includes N-polyoxyalkylene-polyalkylenepolyamine and a polyoxyethylene-polyoxypropylene block polymer.Type: ApplicationFiled: February 26, 2004Publication date: December 16, 2004Applicant: Mitsubishi Pencil Co., Ltd.Inventors: Hideyuki Ikoma, Satoshi Sakuma, Junichi Shinozawa
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Publication number: 20040135876Abstract: The present invention provide an LED print head arranged opposite to a photosensitive body, consisting of a base body, which is arranged parallel to the axis of said photosensitive body, and consists of a large volume base part having an upper face opposite to said photosensitive body and a small volume projection part extending upward from a part of said upper face of said base part, and having a narrow width in the path of said photosensitive body, an LED base panel fitted on the upper face of said base part, and a lens array fitting to the upper part of a side of said projecting part, being arranged between the opposing face of said photosensitive body, and the upper face of said LED base panel; a method for manufacturing said LED print head, a method for manufacturing a LED base panel used therein, and a method for attaching said LED print head to said base panelType: ApplicationFiled: November 14, 2003Publication date: July 15, 2004Inventors: Shunsuke Ueda, Takao Takagi, Setsuo Suzuki, Takeyoshi Horiuchi, Hideyuki Ikoma, Hiromu Ono, Takashi Toyoda, Sayuri Natsui
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Patent number: 6645284Abstract: Provided is an ink composition for a water based ballpoint pen which satisfies all of no change in the ink composition even in storage over a long period of time, a good strike-through property and an excellent drawn line-drying property at the same time. An ink composition for a water based ballpoint pen comprising at least water and a colorant, characterized by further comprising at least one drawn line-drying property-improving agent selected from butyl cellosolve and butyl carbitol in a proportion of 0.1 to 2.5% by weight based on the whole amount of the composition and having a surface tension of 16 to 45 mN/m, and a water based ballpoint pen containing therein the same.Type: GrantFiled: March 22, 2001Date of Patent: November 11, 2003Assignee: Mitsubishi Pencil Kabushiki KaishaInventor: Hideyuki Ikoma
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Publication number: 20030177947Abstract: Provided are a navy blue water based ink composition for a ballpoint pen comprising a colorant, water and a dispersant, wherein at least cobalt phthalocyanine blue is used as the colorant, and a pH of the ink falls in a range of 7 to 10, and a ballpoint pen occulding the water based ink composition. Cobalt phthalocyanine blue has preferably a diameter of 500 nm or more and a content of 0.05 to 30% by weight based on the total amount of the ink composition.Type: ApplicationFiled: March 13, 2003Publication date: September 25, 2003Inventor: Hideyuki Ikoma
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Publication number: 20010032567Abstract: Provided is an ink composition for a water based ballpoint pen which satisfies all of no change in the ink composition even in storage over a long period of time, a good strike-through property and an excellent drawn line-drying property at the same time.Type: ApplicationFiled: March 22, 2001Publication date: October 25, 2001Applicant: MITSUBISHI PENCIL KABUSHIKI KAISHAInventor: Hideyuki Ikoma
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Patent number: 4704373Abstract: A dielectric ceramic composition is disclosed, comprising as three components lead nickel niobate, lead titanate, and lead magnesium iron tungstate, wherein the composition in terms of the three components is represented by the formulaX[Pb(Ni.sub.1/3 Nb.sub.2/3)O.sub.3 ].Y[PbTiO.sub.3 ].Z[Pb(Mg.sub.1/4 Fe.sub.1/4 W.sub.1/2)O.sub.3 ]wherein X+Y+Z=1.00, X, Y, and Z are within the polyhedral area formed by lines connecting points a (X=0.78, Y=0.20, Z=0.02), b (X=0.50, Y=0.20, Z=0.30), c (X=0.40, Y=0.30, Z=0.30), d (X=0.50, Y=0.40, Z=0.10), and e (X=0.58, Y=0.40, Z=0.02) of an X-Y-Z ternary phase diagram. The composition can be sintered at a relatively low temperature, has a high dielectric constant, and is useful as a material for condensers and electrostriction elements.Type: GrantFiled: October 29, 1986Date of Patent: November 3, 1987Assignee: NGK Spark Plug Co., Ltd.Inventors: Takeo Kinoshita, Hideyuki Ikoma, Tsutomu Tsunooka