Patents by Inventor Masahiro Takashima
Masahiro Takashima 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: 11971683Abstract: Provided an electrophotographic electro-conductive member that can stably suppress an occurrence of fogging in an electrophotographic image. The member comprises a support having an electro-conductive outer surface, and an electro-conductive layer on the outer surface of the support, the electro-conductive layer having a matrix including a cross-linked product of a first rubber, and domains dispersed in the matrix, the domains each includes a cross-linked product of a second rubber and an electro-conductive particle, at least some of the domains is exposed to the outer surface of the electro-conductive member to constitute protrusions on an outer surface of the member, the outer surface of the electro-conductive member is constituted by the matrix and the domains exposed to the outer surface of the electrophotographic electro-conductive member, the electrophotographic electro-conductive member has an impedance of 1.0×103? or more and 1.0×108? or less, and some of the domains satisfy two specific requirements.Type: GrantFiled: September 27, 2021Date of Patent: April 30, 2024Assignee: CANON KABUSHIKI KAISHAInventors: Satoru Nishioka, Kazuhiro Yamauchi, Hiroaki Watanabe, Takumi Furukawa, Yasuhiro Fushimoto, Masahiro Kurachi, Kenji Takashima, Yuichi Kikuchi, Kana Sato
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Publication number: 20240010517Abstract: Provided is a method of manufacturing a composite hydroxide that can appropriately control a BET specific surface area. The method of manufacturing a composite hydroxide containing at least nickel (Ni) and cobalt (Co), wherein a first metal-containing aqueous solution containing A mol % of nickel (Ni) and B mol % of cobalt (Co), a second metal-containing aqueous solution containing C mol % of nickel (Ni) and D mol % of cobalt (Co), wherein A>C, B<D, A+B=100, and C+D=100, an aqueous solution of an alkali metal, and an aqueous solution containing an ammonium-ion supplying material, are separately fed into a reaction vessel; and a solution in the reaction vessel is maintained to have a pH value based on a liquid temperature at 25° C. within a range of 10.0 or higher and 13.0 or lower and a concentration of ammonium ion within a range of 1.0 g/L, or more and 10.0 g/L or less.Type: ApplicationFiled: September 29, 2022Publication date: January 11, 2024Applicant: TANAKA CHEMICAL CORPORATIONInventors: Kazuki KATAGIRI, Yasutaka IIDA, Masahiro TAKASHIMA
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Publication number: 20220158184Abstract: The present disclosure provides a precursor of a positive electrode active material, capable of obtaining the positive electrode active material that can exhibit a high discharge capacity and high charge/discharge efficiency, by being mounted on a secondary battery using a non-aqueous electrolyte, and the positive electrode active material obtained from the precursor, as well as a method for producing the positive electrode active material. The nickel composite hydroxide particles that are precursors of a positive electrode active material of a non-aqueous electrolyte secondary battery, having a void ratio of 45.0% or more and 55.0% or less.Type: ApplicationFiled: January 31, 2022Publication date: May 19, 2022Applicants: TANAKA CHEMICAL CORPORATION, SANYO ELECTRIC CO., LTD.Inventors: Taiki YASUDA, Kazuki KATAGIRI, Takaaki MASUKAWA, Masahiro TAKASHIMA, Takeshi CHIBA, Yasunobu KAWAMOTO, Takahiro SAKAMOTO, Masahiro KINOSHITA
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Publication number: 20210328216Abstract: A composite hydroxide in which reactivity of a lithium compound is equalized with another composite hydroxide having a large particle diameter. The composite hydroxide includes at least one metal selected from the group consisting of nickel, cobalt, and manganese, the composite hydroxide being a precursor of a positive electrode active material for a non-aqueous electrolyte secondary battery, wherein a secondary particle diameter with a cumulative volume percentage of 50% by volume (D50) is 4.0 ?m or less, tapped density (g/ml)/secondary particle diameter with cumulative volume percentage of 50% by volume (D50) (?m) is 0.60 g/ml·?m or more, and a specific surface area measured by a BET method is 15.0 m2/g or less.Type: ApplicationFiled: July 1, 2021Publication date: October 21, 2021Applicant: TANAKA CHEMICAL CORPORATIONInventors: Kazuki KATAGIRI, Takaaki MASUKAWA, Masahiro TAKASHIMA
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Patent number: 9857556Abstract: Disclosed is an apparatus for auto focus, which includes a first frame having a magnet, a second frame having an auto focus (AF) coil for moving the first frame in an optical axis direction and a yoke giving an attractive force to the magnet, and a plurality of balls arranged in the optical axis direction and located between the first frame and the second frame so that the first frame and the second frame are maintained to be spaced apart from each other. An entire height of the plurality of balls is equal to or higher than a height of the magnet on the basis of the optical axis direction.Type: GrantFiled: January 9, 2017Date of Patent: January 2, 2018Assignee: JAHWA electronics Co., Ltd.Inventors: Hee Seung Kim, In Soo Kim, Masahiro Takashima
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Publication number: 20170357077Abstract: Disclosed is an apparatus for auto focus, which includes a first frame having a magnet, a second frame having an auto focus (AF) coil for moving the first frame in an optical axis direction and a yoke giving an attractive force to the magnet, and a plurality of balls arranged in the optical axis direction and located between the first frame and the second frame so that the first frame and the second frame are maintained to be spaced apart from each other. An entire height of the plurality of balls is equal to or higher than a height of the magnet on the basis of the optical axis direction.Type: ApplicationFiled: January 9, 2017Publication date: December 14, 2017Applicant: JAHWA electronics Co., Ltd.Inventors: Hee Seung KIM, In Soo KIM, Masahiro TAKASHIMA
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Patent number: 8149284Abstract: An imaging unit having: an image pickup element for imaging a subject; a camera shake correction unit for correcting camera shake by moving the image pickup element, wherein the camera shake correction unit includes a stage which carries the image pickup element; and a reference bedplate supporting the camera shake correction unit; at least two guide members which support the stage movably with respect to the reference bedplate in a predetermined direction respectively; and wherein the camera shake correction unit further includes a biasing member for biasing the stage in one direction except the predetermined directions with respect to the reference bedplate, thereby removing mechanical play in at least two directions out of the three dimensional directions of the guide member.Type: GrantFiled: February 20, 2009Date of Patent: April 3, 2012Assignee: Konica Minolta Opto, Inc.Inventors: Hiroshi Hasegawa, Shigeo Homme, Masahiro Takashima
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Publication number: 20100206620Abstract: The present invention relates to a bendable printed board, an image pickup apparatus, and a camera. The bendable printed board is provided with: a first end connected to a moving body movable in an arbitral direction within a predefined plane; a second end connected to a fixed body with slack providing movability to the moving body; and a slit formed on at least a part of a slack portion of the printed board.Type: ApplicationFiled: April 28, 2010Publication date: August 19, 2010Applicant: Konica Minolta Opto Inc.Inventors: Tougo TERAMOTO, Masahiro Takashima
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Patent number: 7734083Abstract: The present invention relates to a bendable printed board, an image pickup apparatus, and a camera. The bendable printed board is provided with: a first end connected to a moving body movable in an arbitral direction within a predefined plane; a second end connected to fixed body with slack providing movability to the moving body; and a slit formed on at least a part of a slack portion of the printed board.Type: GrantFiled: June 29, 2006Date of Patent: June 8, 2010Assignee: Konica Minolta Opto, Inc.Inventors: Tougo Teramoto, Masahiro Takashima
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Publication number: 20090219400Abstract: An imaging unit having: an image pickup element for imaging a subject; a camera shake correction unit for correcting camera shake by moving the image pickup element, wherein the camera shake correction unit includes a stage which carries the image pickup element; and a reference bedplate supporting the camera shake correction unit; at least two guide members which support the stage movably with respect to the reference bedplate in a predetermined direction respectively; and wherein the camera shake correction unit further includes a biasing member for biasing the stage in one direction except the predetermined directions with respect to the reference bedplate, thereby removing mechanical play in at least two directions out of the three dimensional directions of the guide member.Type: ApplicationFiled: February 20, 2009Publication date: September 3, 2009Applicant: Konica Minolta Opto, Inc.Inventors: Hiroshi Hasegawa, Shigeo Homme, Masahiro Takashima
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Patent number: 7505218Abstract: In a lens barrel in which an imaging optical system can be retracted and protruded, a retaining member to retain an optical element nearest to the imaging element among the imaging optical system is provided, the optical element moves in a receding direction from the imaging element when the imaging optical system is protruded, and moves in an approaching direction to the imaging element when the imaging optical system is retracted by deforming the retaining member.Type: GrantFiled: October 23, 2006Date of Patent: March 17, 2009Assignee: Konica Minolta Opto, Inc.Inventors: Masahiro Takashima, Tougo Teramoto, Shigeo Homme
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Publication number: 20070091476Abstract: In a lens barrel in which an imaging optical system can be retracted and protruded, a retaining member to retain an optical element nearest to the imaging element among the imaging optical system is provided, the optical element moves in a receding direction from the imaging element when the imaging optical system is protruded, and moves in an approaching direction to the imaging element when the imaging optical system is retracted by deforming the retaining member.Type: ApplicationFiled: October 23, 2006Publication date: April 26, 2007Inventors: Masahiro Takashima, Tougo Teramoto, Shigeo Homme
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Publication number: 20070019076Abstract: The present invention relates to a bendable printed board, an image pickup apparatus, and a camera. The bendable printed board is provided with: a first end connected to a moving body movable in an arbitral direction within a predefined plane; a second end connected to fixed body with slack providing movability to the moving body; and a slit formed on at least a part of a slack portion of the printed board.Type: ApplicationFiled: June 29, 2006Publication date: January 25, 2007Applicant: Konica Minolta Opto Inc.Inventors: Tougo Teramoto, Masahiro Takashima