Patents by Inventor Masami Iizuka
Masami Iizuka 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: 20150197673Abstract: Embodiments of the present invention provide an adhesive requiring a low modulus of elasticity and a liquid epoxy resin composition that is used for the adhesive thereof. The liquid epoxy resin composition not only exhibits flexibility or a low modulus of elasticity to prevent magnet cracking in the manufacturing of a rotor, using a ferrite magnet in particular, but also does not undergo a decrease in weight while exhibits minimal dimensional change. This is true even if the liquid epoxy resin is immersed in an automatic transmission fluid, for a long period of time, in an environment which is used as a rotor. The liquid epoxy resin composition according to the embodiments of the present invention includes a bisphenol A type epoxy resin, an epoxy resin containing a polyoxyalkylene structure, and a curing agent as essential components, used for the adhesive.Type: ApplicationFiled: December 29, 2014Publication date: July 16, 2015Applicant: SOMAR CORPORATIONInventors: Masami IIZUKA, Tetsushi TAKATA
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Patent number: 8127435Abstract: The invention is directed to an electronic component mounting apparatus which is applicable to a case in which component feeding devices need not be provided on both sides of a carrying device respectively for reasons of types of electronic components or a setting space and increases an operating rate of a beam to enhance production efficiency. An electronic component mounting apparatus has a carrying device carrying a printed board, a component feeding device supplying electronic components, a pair of beams movable in one direction by drive sources, and mounting heads each having suction nozzles and movable along the beams by drive sources.Type: GrantFiled: October 21, 2010Date of Patent: March 6, 2012Assignee: Hitachi High-Tech Instruments Co., Ltd.Inventors: Yutaka Mitsumochi, Yoshihiro Onoguchi, Masami Iizuka, Hiroomi Kobayashi, Kazuyoshi Oyama, Hisayoshi Kashitani, Koichi Izuhara
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Publication number: 20110030203Abstract: The invention is directed to an electronic component mounting apparatus which is applicable to a case in which component feeding devices need not be provided on both sides of a carrying device respectively for reasons of types of electronic components or a setting space and increases an operating rate of a beam to enhance production efficiency. An electronic component mounting apparatus has a carrying device carrying a printed board, a component feeding device supplying electronic components, a pair of beams movable in one direction by drive sources, and mounting heads each having suction nozzles and movable along the beams by drive sources.Type: ApplicationFiled: October 21, 2010Publication date: February 10, 2011Applicant: Hitachi High-Tech Instruments Co., Ltd.Inventors: Yutaka Mitsumochi, Yoshihiro Onoguchi, Masami Iizuka, Hiroomi Kobayashi, Kazuyoshi Oyama, Hisayoshi Kashitani, Koichi Izuhara
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Patent number: 7841073Abstract: The invention is directed to an electronic component mounting apparatus which is applicable to a case in which component feeding devices need not be provided on both sides of a carrying device respectively for reasons of types of electronic components or a setting space and increases an operating rate of a beam to enhance production efficiency. An electronic component mounting apparatus has a carrying device carrying a printed board, a component feeding device supplying electronic components, a pair of beams movable in one direction by drive sources, and mounting heads each having suction nozzles and movable along the beams by drive sources.Type: GrantFiled: April 25, 2008Date of Patent: November 30, 2010Assignee: Hitachi High-Tech Instruments Co., Ltd.Inventors: Yutaka Mitsumochi, Yoshihiro Onoguchi, Masami Iizuka, Hiroomi Kobayashi, Kazuyoshi Oyama, Hisayoshi Kashitani, Koichi Izuhara
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Publication number: 20080263857Abstract: The invention is directed to an electronic component mounting apparatus which is applicable to a case in which component feeding devices need not be provided on both sides of a carrying device respectively for reasons of types of electronic components or a setting space and increases an operating rate of a beam to enhance production efficiency. An electronic component mounting apparatus has a carrying device carrying a printed board, a component feeding device supplying electronic components, a pair of beams movable in one direction by drive sources, and mounting heads each having suction nozzles and movable along the beams by drive sources.Type: ApplicationFiled: April 25, 2008Publication date: October 30, 2008Applicant: Hitachi High-Tec Instruments Co., Ltd.Inventors: Yutaka Mitsumochi, Yoshihiro Onoguchi, Masami Iizuka, Hiroomi Kobayashi, Kazuyoshi Oyama, Hisayoshi Kashitani, Koichi Izuhara
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Patent number: 7417720Abstract: A lighting optical machine and defect inspection system having high reliability and safety when a laser beam is used as a light source. The lighting optical machine comprises: a housing, which accommodates a laser source, a beam deflection mechanism having first and second plane mirrors enabling a beam emitted from the laser source to be reflected so that the beam travels in the direction almost parallel to the beam emitted from the laser source, a beam expander for converting the beam to a parallel beam having a larger cross-sectional area, an objective lens, through which the parallel beam is reduced and applied to the surface of a sample; a first control mechanism for controlling the directions of the two plane mirrors of the beam deflection mechanism with an electric signal; and a second control mechanism for controlling the focus position of the beam expander with an electric signal.Type: GrantFiled: September 18, 2006Date of Patent: August 26, 2008Assignee: Hitachi High-Technologies CorporationInventors: Masami Iizuka, Shigeru Matsui, Tadashi Suzuki, Hiroshi Goto, Takayuki Ono
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Patent number: 7348558Abstract: According to the invention, techniques for automatically adjusting for astigmatism in a charged particle beam apparatus. Embodiments according to the present invention can provide a charged particle beam apparatus and an automatic astigmatism adjustment methods capable of automatically correcting astigmatism and a focal point in a relatively short period of time by finding a plurality of astigmatism correction quantities and a focal point correction quantity in a single operation from a relatively small number of 2 dimensional images. Specific embodiments can perform such automatic focusing while minimizing damages inflicted on subject samples. Embodiments include, among others, a charged particle optical system for carrying out an inspection, a measurement and a fabrication with a relatively high degree of accuracy by using a charged particle beam.Type: GrantFiled: April 13, 2006Date of Patent: March 25, 2008Assignee: Hitachi, Ltd.Inventors: Masahiro Watanabe, Hiroyuki Shinada, Atsuko Takafuji, Masami Iizuka, Yasuhiro Gunji, Kouichi Hayakawa, Masayoshi Takeda
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Publication number: 20070008521Abstract: A lighting optical machine and defect inspection system having high reliability and safety when a laser beam is used as a light source. The lighting optical machine comprises: a housing, which accommodates a laser source, a beam polarization mechanism having first and second plane mirrors enabling a beam emitted from the laser source to be reflected so that the beam travels in the direction almost parallel to the beam emitted from the laser source, a beam expander for converting the beam to a parallel beam having a larger cross-sectional area, an objective lens, through which the parallel beam is reduced and applied to the surface of a sample; a first control mechanism for controlling the directions of the two plane mirrors of the beam polarization mechanism with an electric signal; and a second control mechanism for controlling the focus position of the beam expander with an electric signal.Type: ApplicationFiled: September 18, 2006Publication date: January 11, 2007Inventors: Masami Iizuka, Shigeru Matsui, Tadashi Suzuki, Hiroshi Goto, Takayuki Ono
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Patent number: 7133127Abstract: A lighting optical machine and defect inspection system having high reliability and safety when a laser beam is used as a light source. The lighting optical machine comprises: a housing, which accommodates a laser source, a beam polarization mechanism having first and second plane mirrors enabling a beam emitted from the laser source to be reflected so that the beam travels in the direction almost parallel to the beam emitted from the laser source, a beam expander for converting the beam to a parallel beam having a larger cross-sectional area, an objective lens, through which the parallel beam is reduced and applied to the surface of a sample; a first control mechanism for controlling the directions of the two plane mirrors of the beam polarization mechanism with an electric signal; and a second control mechanism for controlling the focus position of the beam expander with an electric signal.Type: GrantFiled: July 3, 2003Date of Patent: November 7, 2006Assignee: Hitachi High-Technologies CorporationInventors: Masami Iizuka, Shigeru Matsui, Tadashi Suzuki, Hiroshi Goto, Takayuki Ono
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Patent number: 7030394Abstract: According to the invention, techniques for automatically adjusting for astigmatism in a charged particle beam apparatus. Embodiments according to the present invention can provide a charged particle beam apparatus and an automatic astigmatism adjustment methods capable of automatically correcting astigmatism and a focal point in a relatively short period of time by finding a plurality of astigmatism correction quantities and a focal point correction quantity in a single operation from a relatively small number of 2 dimensional images. Specific embodiments can perform such automatic focusing while minimizing damages inflicted on subject samples. Embodiments include, among others, a charged particle optical system for carrying out an inspection, a measurement and a fabrication with a relatively high degree of accuracy by using a charged particle beam.Type: GrantFiled: November 2, 2004Date of Patent: April 18, 2006Assignee: Hitachi, Ltd.Inventors: Masahiro Watanabe, Hiroyuki Shinada, Atsuko Takafuji, Masami Iizuka, Yasuhiro Gunji, Kouichi Hayakawa, Masayoshi Takeda
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Patent number: 6825480Abstract: According to the invention, techniques for automatically adjusting for astigmatism in a charged particle beam apparatus. Embodiments according to the present invention can provide a charged particle beam apparatus and an automatic astigmatism adjustment methods capable of automatically correcting astigmatism and a focal point in a relatively short period of time by finding a plurality of astigmatism correction quantities and a focal point correction quantity in a single operation from a relatively small number of 2 dimensional images. Specific embodiments can perform such automatic focusing while minimizing damages inflicted on subject samples. Embodiments include, among others, a charged particle optical system for carrying out an inspection, a measurement and a fabrication with a relatively high degree of accuracy by using a charged particle beam.Type: GrantFiled: June 22, 2000Date of Patent: November 30, 2004Assignee: Hitachi, Ltd.Inventors: Masahiro Watanabe, Hiroyuki Shinada, Atsuko Takafuji, Masami Iizuka, Yasuhiro Gunji, Kouichi Hayakawa, Masayoshi Takeda
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Publication number: 20040008341Abstract: A lighting optical machine and defect inspection system having high reliability and safety when a laser beam is used as a light source. The lighting optical machine comprises: a housing, which accommodates a laser source, a beam polarization mechanism having first and second plane mirrors enabling a beam emitted from the laser source to be reflected so that the beam travels in the direction almost parallel to the beam emitted from the laser source, a beam expander for converting the beam to a parallel beam having a larger cross-sectional area, an objective lens, through which the parallel beam is reduced and applied to the surface of a sample; a first control mechanism for controlling the directions of the two plane mirrors of the beam polarization mechanism with an electric signal; and a second control mechanism for controlling the focus position of the beam expander with an electric signal.Type: ApplicationFiled: July 3, 2003Publication date: January 15, 2004Inventors: Masami Iizuka, Shigeru Matsui, Tadashi Suzuki, Hiroshi Goto, Takayuki Ono