Patents by Inventor Masahito Watanabe
Masahito Watanabe 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: 10031322Abstract: The invention relates to an electronic image pickup system whose depth dimension is extremely reduced, taking advantage of an optical system type that can overcome conditions imposed on the movement of a zooming movable lens group while high specifications and performance are kept. The electronic image pickup system comprises an optical path-bending zoom optical system comprising, in order from its object side, a 1-1st lens group G1-1 comprising a negative lens group and a reflecting optical element P for bending an optical path, a 1-2nd lens group G1-2 comprising one positive lens and a second lens group G2 having positive refracting power. For zooming from the wide-angle end to the telephoto end, the second lens group G2 moves only toward the object side. The electronic image pickup system also comprises an electronic image pickup device I located on the image side of the zoom optical system.Type: GrantFiled: May 30, 2017Date of Patent: July 24, 2018Assignee: OLYMPUS CORPORATIONInventors: Shinichi Mihara, Hirokazu Konishi, Toyoharu Hanzawa, Masahito Watanabe, Atsujiro Ishii, Tetsuhide Takeyama, Ayami Imamura
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Publication number: 20180103619Abstract: Disease model pigs produced by nuclear transplantation, disease model pigs exhibiting stable phenotypes and production methods thereof are provided. Chimeric pigs for producing disease model pigs exhibiting stable phenotypes, genital glands thereof, and germ cells thereof are also provided. A method for producing a genetically modified disease model pig, includes: (a) transplanting a nucleus of a genetically modified cell into cytoplasm of an egg; (b) developing an obtained clonal embryo in a womb of a female pig to obtain an offspring; and mating the obtained offspring or having the offspring undergo sexual reproduction to further obtain the genetically modified offspring as a disease model pig.Type: ApplicationFiled: March 4, 2016Publication date: April 19, 2018Applicant: ChimaERA CorporationInventors: Hiroshi NAGASHIMA, Hitomi MATSUNARI, Masahito WATANABE
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Publication number: 20170261727Abstract: The invention relates to an electronic image pickup system whose depth dimension is extremely reduced, taking advantage of an optical system type that can overcome conditions imposed on the movement of a zooming movable lens group while high specifications and performance are kept. The electronic image pickup system comprises an optical path-bending zoom optical system comprising, in order from its object side, a 1-1st lens group G1-1 comprising a negative lens group and a reflecting optical element P for bending an optical path, a 1-2nd lens group G1-2 comprising one positive lens and a second lens group G2 having positive refracting power. For zooming from the wide-angle end to the telephoto end, the second lens group G2 moves only toward the object side. The electronic image pickup system also comprises an electronic image pickup device I located on the image side of the zoom optical system.Type: ApplicationFiled: May 30, 2017Publication date: September 14, 2017Inventors: Shinichi MIHARA, Hirokazu KONISHI, Toyoharu HANZAWA, Masahito WATANABE, Atsujiro ISHII, Tetsuhide TAKEYAMA, Ayami IMAMURA
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Patent number: 9696524Abstract: The invention relates to an electronic image pickup system whose depth dimension is extremely reduced, taking advantage of an optical system type that can overcome conditions imposed on the movement of a zooming movable lens group while high specifications and performance are kept. The electronic image pickup system comprises an optical path-banding zoom optical system comprising, in order from its object side, a 1-1st lens group G1-1 comprising a negative lens group and a reflecting optical element P for bending an optical path, a 1-2nd lens group G1-2 comprising one positive lens and a second lens group G2 having positive refracting power. For zooming from the wide-angle end to the telephoto end, the second lens group G2 moves only toward the object side. The electronic image pickup system also comprises an electronic image pickup device I located on the image side of the zoom optical system.Type: GrantFiled: January 20, 2016Date of Patent: July 4, 2017Assignee: OLYMPUS CORPORATIONInventors: Shinichi Mihara, Hirokazu Konishi, Toyoharu Hanzawa, Masahito Watanabe, Atsujiro Ishii, Tetsuhide Takeyama, Ayami Imamura
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Patent number: 9617292Abstract: The purpose of the invention is to provide a novel organometallic compound that can be utilized as a catalyst having high generality, high activity, and excellent functional group selectivity. The invention pertains to a novel organometallic compound represented by general formula (1) that catalyzes a reductive amination reaction.Type: GrantFiled: April 22, 2014Date of Patent: April 11, 2017Assignee: Kanto Kagaku Kabushiki KaishaInventors: Masahito Watanabe, Toshihide Takemoto, Kouichi Tanaka, Kunihiko Murata
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Patent number: 9568706Abstract: A lens barrel of the present invention is a lens barrel holding a photographing optical system which is a zoom lens constituted by five groups and includes: a cylindrical cam barrel arranged to be rotatable around an optical axis; a first lens driving section driving the cam barrel around the optical axis; a plurality of first cam grooves carved on an outer circumferential surface of the cam barrel; and a plurality of second cam grooves carved on an inner circumferential surface of the cam barrel. A first lens group holding barrel has a plurality of cam followers that are recessed in the first cam grooves; and each of a second lens group holding barrel and a third lens group holding barrel has a plurality of cam followers that are recessed in the second cam grooves.Type: GrantFiled: September 29, 2014Date of Patent: February 14, 2017Assignee: Olympus CorporationInventors: Tsubasa Niiyama, Mayu Miki, Akinori Nishio, Masahito Watanabe, Masaya Ota
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Publication number: 20160139374Abstract: The invention relates to an electronic image pickup system whose depth dimension is extremely reduced, taking advantage of an optical system type that can overcome conditions imposed on the movement of a zooming movable lens group while high specifications and performance are kept. The electronic image pickup system comprises an optical path-banding zoom optical system comprising, in order from its object side, a 1-1st lens group G1-1 comprising a negative lens group and a reflecting optical element P for bending an optical path, a 1-2nd lens group G1-2 comprising one positive lens and a second lens group G2 having positive refracting power. For zooming from the wide-angle end to the telephoto end, the second lens group G2 moves only toward the object side. The electronic image pickup system also comprises an electronic image pickup device I located on the image side of the zoom optical system.Type: ApplicationFiled: January 20, 2016Publication date: May 19, 2016Inventors: Shinichi MIHARA, Hirokazu KONISHI, Toyoharu HANZAWA, Masahito WATANABE, Atsujiro ISHII, Tetsuhide TAKEYAMA, Ayami IMAMURA
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Publication number: 20160060282Abstract: The purpose of the invention is to provide a novel organometallic compound that can be utilized as a catalyst having high generality, high activity, and excellent functional group selectivity. The invention pertains to a novel organometallic compound represented by general formula (1) that catalyzes a reductive amination reaction.Type: ApplicationFiled: April 22, 2014Publication date: March 3, 2016Applicant: Kanto Kagaku Kabushiki KaishaInventors: Masahito Watanabe, Toshihide Takemoto, Kouichi Tanaka, Kunihiko Murata
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Patent number: 9274321Abstract: The invention relates to an electronic image pickup system whose depth dimension is extremely reduced, taking advantage of an optical system type that can overcome conditions imposed on the movement of a zooming movable lens group while high specifications and performance are kept. The electronic image pickup system comprises an optical path-bending zoom optical system comprising, in order from its object side, a 1-1st lens group G1-1 comprising a negative lens group and a reflecting optical element P for bending an optical path, a 1-2nd lens group G1-2 comprising one positive lens and a second lens group G2 having positive refracting power. For zooming from the wide-angle end to the telephoto end, the second lens group G2 moves only toward the object side. The electronic image pickup system also comprises an electronic image pickup device I located on the image side of the zoom optical system.Type: GrantFiled: October 2, 2014Date of Patent: March 1, 2016Assignee: OLYMPUS CORPORATIONInventors: Shinichi Mihara, Hirokazu Konishi, Toyoharu Hanzawa, Masahito Watanabe, Atsujiro Ishii, Tetsuhide Takeyama, Ayami Imamura
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Patent number: 9211533Abstract: [Problem] The present invention aims to provide a novel organometallic compound that can be used as a general-use highly active catalyst with superior selectivity for functional groups. [Means for Solving Problem] The present invention relates to an organometallic compound having a novel specific structure of general formula (1): and to a general-use highly active catalyst used in reductive amination reaction with superior selectivity for functional groups that comprises said organometallic compound, and to a process for preparing amine compounds by reductive amination reaction using said catalyst.Type: GrantFiled: June 6, 2013Date of Patent: December 15, 2015Assignee: Kanto Kagaku Kabushiki KaishaInventors: Masahito Watanabe, Junichi Hori, Kunihiko Murata
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Patent number: 9207441Abstract: A zoom lens includes, in order from the object side, a first lens unit having a negative refractive power, a second lens unit having a positive refractive power, and a third lens unit having a positive refractive power. The first lens unit includes a negative lens and a positive lens. The zoom lens satisfies the following conditional expression (1): ?d13/ft<0.4??(1) where ?d13 is the total sum of the thickness of the lenses included in the first to third lens units of the zoom lens on the optical axis, and ft is the focal length of the entire zoom lens system at the telephoto end.Type: GrantFiled: September 24, 2014Date of Patent: December 8, 2015Assignee: Olympus CorporationInventors: Minoru Ueda, Masahito Watanabe, Masahiro Imamura, Mayu Miki
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Patent number: 9188770Abstract: A zoom lens consists of, in order from the object side, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, a third lens unit having a positive refractive power, a fourth lens unit having a negative refractive power, and a fifth lens unit having a positive refractive power. The first lens unit and the second lens unit move during zooming from the wide angle end to the telephoto end. The zoom lens satisfies the following conditional expressions (1), (2), and (3): ft/fw>6.0??(1), Fno(T)<3.5??(2),and ?d/ft<0.6??(3).Type: GrantFiled: March 14, 2014Date of Patent: November 17, 2015Assignee: OLYMPUS CORPORATIONInventors: Akinori Nishio, Mayu Miki, Masahito Watanabe, Tomoyuki Satori
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Publication number: 20150168682Abstract: The invention relates to an electronic image pickup system whose depth dimension is extremely reduced, taking advantage of an optical system type that can overcome conditions imposed on the movement of a zooming movable lens group while high specifications and performance are kept. The electronic image pickup system comprises an optical path-bending zoom optical system comprising, in order from its object side, a 1-1st lens group G1-1 comprising a negative lens group and a reflecting optical element P for bending an optical path, a 1-2nd lens group G1-2 comprising one positive lens and a second lens group G2 having positive refracting power. For zooming from the wide-angle end to the telephoto end, the second lens group G2 moves only toward the object side. The electronic image pickup system also comprises an electronic image pickup device I located on the image side of the zoom optical system.Type: ApplicationFiled: October 2, 2014Publication date: June 18, 2015Inventors: SHINICHI MIHARA, Hirokazu KONISHI, Toyoharu HANZAWA, Masahito WATANABE, Atsujiro ISHII, Tetsuhide TAKEYAMA, Ayami IMAMURA
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Publication number: 20150092282Abstract: A lens barrel of the present invention is a lens barrel holding a photographing optical system which is a zoom lens constituted by five groups and includes: a cylindrical cam barrel arranged to be rotatable around an optical axis; a first lens driving section driving the cam barrel around the optical axis; a plurality of first cam grooves carved on an outer circumferential surface of the cam barrel; and a plurality of second cam grooves carved on an inner circumferential surface of the cam barrel. A first lens group holding barrel has a plurality of cam followers that are recessed in the first cam grooves; and each of a second lens group holding barrel and a third lens group holding barrel has a plurality of cam followers that are recessed in the second cam grooves.Type: ApplicationFiled: September 29, 2014Publication date: April 2, 2015Inventors: Tsubasa NIIYAMA, Mayu MIKI, Akinori NISHIO, Masahito WATANABE, Masaya OTA
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Publication number: 20150009577Abstract: A zoom lens includes, in order from the object side, a first lens unit having a negative refractive power, a second lens unit having a positive refractive power, and a third lens unit having a positive refractive power. The first lens unit includes a negative lens and a positive lens. The zoom lens satisfies the following conditional expression (1): ?d13/ft<0.4??(1) where ?d13 is the total sum of the thickness of the lenses included in the first to third lens units of the zoom lens on the optical axis, and ft is the focal length of the entire zoom lens system at the telephoto end.Type: ApplicationFiled: September 24, 2014Publication date: January 8, 2015Inventors: Minoru Ueda, Masahito Watanabe, Masahiro Imamura, Mayu Miki
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Patent number: 8885262Abstract: The invention relates to an electronic image pickup system whose depth dimension is extremely reduced, taking advantage of an optical system type that can overcome conditions imposed on the movement of a zooming movable lens group while high specifications and performance are kept. The electronic image pickup system comprises an optical path-bending zoom optical system comprising, in order from its object side, a 1-1st lens group G1-1 comprising a negative lens group and a reflecting optical element P for bending an optical path, a 1-2nd lens group G1-2 comprising one positive lens and a second lens group G2 having positive refracting power. For zooming from the wide-angle end to the telephoto end, the second lens group G2 moves only toward the object side. The electronic image pickup system also comprises an electronic image pickup device I located on the image side of the zoom optical system.Type: GrantFiled: December 5, 2011Date of Patent: November 11, 2014Assignee: Olympus CorporationInventors: Shinichi Mihara, Hirokazu Konishi, Toyoharu Hanzawa, Masahito Watanabe, Atsujiro Ishii, Tetsuhide Takeyama, Ayami Imamura
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Patent number: 8872960Abstract: A zoom lens includes, in order from the object side, a first lens unit having a negative refractive power, a second lens unit having a positive refractive power, and a third lens unit having a positive refractive power. The first lens unit includes a negative lens and a positive lens. The zoom lens satisfies the following conditional expression (1): ?d13/ft<0.4??(1) where ?d13 is the total sum of the thickness of the lenses included in the first to third lens units of the zoom lens on the optical axis, and ft is the focal length of the entire zoom lens system at the telephoto end.Type: GrantFiled: February 7, 2013Date of Patent: October 28, 2014Assignee: Olympus Imaging Corp.Inventors: Minoru Ueda, Masahito Watanabe, Masahiro Imamura, Mayu Miki
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Patent number: 8871942Abstract: An object is to provide a process for producing the compound of formula 1 in higher yield by the ring-opening addition reaction of epoxytriazole with amine under mild conditions without using a large excess of 4-methylenepiperidine. The process for producing (2R,3R)-2-(2,4-difluorophenyl)-3-(4-methylenepiperidin-1-yl)-1-(1H-1,2,4-triazol-1-yl)butan-2-ol or an acid addition salt thereof comprises reacting (2R,3S)-2-(2,4-difluorophenyl)-3-methyl-2-[(1H-1,2,4-triazol-1-yl)methyl]oxirane with an acid addition salt of 4-methylenepiperidine in a reaction solvent in the presence of a hydroxide of an alkali metal or an alkaline earth metal selected from the group consisting of lithium, sodium, calcium, and strontium, or a hydrate thereof.Type: GrantFiled: August 31, 2011Date of Patent: October 28, 2014Assignee: Kaken Pharmaceutical Co., Ltd.Inventors: Mitsuo Mimura, Masahito Watanabe, Nobuo Ishiyama, Takuya Yamada
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Publication number: 20140268365Abstract: A zoom lens consists of, in order from the object side, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, a third lens unit having a positive refractive power, a fourth lens unit having a negative refractive power, and a fifth lens unit having a positive refractive power. The first lens unit and the second lens unit move during zooming from the wide angle end to the telephoto end. The zoom lens satisfies the following conditional expressions (1), (2), and (3): ft/fw>6.0??(1), Fno(T)<3.5??(2),and ?d/ft<0.6??(3).Type: ApplicationFiled: March 14, 2014Publication date: September 18, 2014Applicants: OLYMPUS CORPORATION, OLYMPUS IMAGING CORP.Inventors: Akinori Nishio, Mayu Miki, Masahito Watanabe, Tomoyuki Satori
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Patent number: 8717683Abstract: An image pickup apparatus includes: a zoom lens; an image pickup element having an image pickup surface which receives an image which has been formed by the zoom lens, and converts to an electric signal; a shading correction parameter storage section which stores a shading correction parameter which differs at a front-surface side and a rear-surface side with respect to a center of an image, which is for correcting asymmetric shading at the front-surface side and the rear-surface side of the zoom lens; and a shading correction section which carries out correction operation of an image which has been picked up by the image pickup element, based on the shading correction parameter of the shading correction parameter storage section. When an object having a uniform brightness is captured, at any state from the wide angle end to the telephoto end, the zoom lens satisfies conditional expression (A).Type: GrantFiled: June 23, 2011Date of Patent: May 6, 2014Assignee: Olympus Imaging Corp.Inventors: Tetsuya Toyoda, Takeshi Hosoya, Masahito Watanabe, Tomoyuki Satori, Eiji Shirota