Patents by Inventor Koji Nitta
Koji Nitta 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).
-
Patent number: 12216335Abstract: There is provided an imaging lens with excellent optical characteristics which satisfies demand of wide field of view, low profile and low F-number. An imaging lens comprises, in order from an object side to an image side, a first lens with positive or negative refractive power in a paraxial region, a second lens with positive or negative refractive power in a paraxial region, a third lens with positive refractive power in a paraxial region, a fourth lens with negative refractive power in a paraxial region, a fifth lens with positive refractive power in a paraxial region, a sixth lens with positive refractive power in a paraxial region, and a seventh lens with negative refractive power.Type: GrantFiled: August 2, 2021Date of Patent: February 4, 2025Assignee: TOKYO VISIONARY OPTICS Co., Ltd.Inventor: Koji Nitta
-
Patent number: 12177977Abstract: A flexible printed circuit board includes a base film having an insulating property and a plurality of interconnects laminated to at least one surface side of the base film. The plurality of interconnects includes a first interconnect and a second interconnect in a same plane. An average thickness of the second interconnect being greater than an average thickness of the first interconnect. A ratio of the average thickness of the second interconnect to the average thickness of the first interconnect is greater than or equal to 1.5 and less than or equal to 50. The first interconnect includes a first conductive underlayer and a first plating layer, and the second interconnect includes a second conductive underlayer, a second plating layer, and a third plating layer.Type: GrantFiled: April 10, 2023Date of Patent: December 24, 2024Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC PRINTED CIRCUITS, INC.Inventors: Koji Nitta, Yasushi Mochida, Yoshio Oka, Shoichiro Sakai, Tadahiro Kaibuki, Junichi Okaue
-
Patent number: 12177973Abstract: A printed wiring board includes a base layer having insulating properties, a first conductive layer directly or indirectly stacked on the base layer front surface, and including a copper foil, a second conductive layer directly or indirectly stacked on the base layer back surface, and including a copper foil, a stacked body for a via hole, the stacked body being stacked on an inner periphery and a bottom of a connection hole that extends through the first conductive layer and the base layer in a thickness direction, and being configured to electrically connect the first conductive layer and the second conductive layer to each other, and having an electroless copper plating layer. Each copper foil contains a copper crystal grain oriented in a plane orientation, and an average crystal grain size of copper of each copper foil is 10 ?m or greater, the electroless copper plating layer includes palladium.Type: GrantFiled: May 20, 2020Date of Patent: December 24, 2024Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC PRINTED CIRCUITS, INC.Inventors: Shoichiro Sakai, Junichi Motomura, Koji Nitta, Masashi Iwamoto, Mitsutaka Tsubokura, Mari Sogabe, Akira Tsuchiko
-
Patent number: 12164179Abstract: The present disclosure relates to a technical field of optical lenses, and discloses a camera optical lens. The camera optical lens includes seven lenses. An order of the seven lenses is sequentially from an object side to an image side, which is shown as follows: a first lens having a positive refractive power, a second lens having a negative refractive power, a third lens having a negative refractive power, a fourth lens having a positive refractive power, a fifth lens having a negative refractive power, a sixth lens having a positive refractive power, and a seventh lens having a negative refractive power. The camera optical lens provided by the present disclosure has excellent optical characteristics, and further has characteristics of large aperture, wide-angle, and ultra-thin, especially suitable for mobile phone camera lens assemblies and WEB camera lenses, which are composed of camera components having high pixels, such as CCD.Type: GrantFiled: December 14, 2021Date of Patent: December 10, 2024Assignee: AAC Optics (Suzhou) Co., Ltd.Inventors: Koji Nitta, Yaqiong Guo
-
Patent number: 12164086Abstract: The present invention relates to a field of optical lens, and discloses a camera lens with six-piece lenses including a first lens having a positive refractive power, a second lens having a positive refractive power, a third lens having a negative refractive power, a fourth lens having a negative refractive power, a fifth lens having a positive refractive power, and a sixth lens having a negative refractive power. The camera lens satisfies following conditions: in an imaging status TTL/LB?2.20, 7.50?D12/d2?8.50, 0.04?d6/f?0.08, and ?1.00?R6/R7??0.35. The present invention has a small height in a retraction status, and a narrow angle as well as good optical properties in the imaging status.Type: GrantFiled: December 27, 2021Date of Patent: December 10, 2024Assignee: AAC Optics (Changzhou) Co., Ltd.Inventors: Koji Nitta, Takayuki Sakaguchi, Hiroyuki Teraoka
-
Publication number: 20240407085Abstract: A printed circuit board includes a base film having a main surface, and an electrically conductive pattern disposed on the main surface. The electrically conductive pattern includes an electrically conductive base layer disposed on the main surface directly or indirectly, and a copper electroplating layer disposed on the electrically conductive base layer. The void density, being a value obtained by dividing a sum of areas of voids within a predetermined observation length at an interface between the electrically conductive base layer and the copper electroplating layer by the observation length, is more than 0.01 ?m2/?m and 5.5 ?m2/?m or less.Type: ApplicationFiled: June 7, 2023Publication date: December 5, 2024Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC PRINTED CIRCUITS, INC.Inventors: Yosuke FUKAYA, Koji NITTA, Shoichiro SAKAI, Takuto HIDANI, Yoshihito YAMAGUCHI
-
Publication number: 20240407086Abstract: A printed circuit board includes a base film having a main surface, and an electrically conductive pattern disposed on the main surface. A normal line of the main surface is along a first direction. The electrically conductive pattern includes a plurality of wiring portions disposed side by side along a second direction to be spaced apart from each other, the second direction being orthogonal to the first direction. The plurality of wiring portions include a first wiring portion and a second wiring portion that are each present at a corresponding one of both ends in the second direction and a plurality of third wiring portions that are present between the first wiring portion and the second wiring portion in the second direction.Type: ApplicationFiled: June 7, 2023Publication date: December 5, 2024Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC PRINTED CIRCUITS, INC.Inventors: Yukie TSUDA, Koji NITTA, Takahiko MAKINO, Hiroki NOHARA
-
Patent number: 12147089Abstract: The present invention discloses a camera optical lens with seven-piece lens including, from an object side to an image side in sequence, a first lens having a positive refractive power, a second lens having a negative refractive power, a third lens having a positive refractive power, a fourth lens having a negative refractive power, a fifth lens having a negative refractive power, a sixth lens having a positive refractive power and a seventh lens having a negative refractive power. The camera optical lens satisfies the following conditions: 0.30?R7/R5?1.50 and ?3.00?R13/R14??1.00. The camera optical lens according to the present invention has excellent optical characteristics, such as large aperture, wide-angle, and ultra-thin.Type: GrantFiled: November 30, 2021Date of Patent: November 19, 2024Assignee: AAC Optics (Changzhou) Co., Ltd.Inventors: Koji Nitta, Liyuan Wang
-
Patent number: 12144122Abstract: In manufacturing a printed circuit board using a semi-additive method, a removal liquid that has been used in removing a nickel-chromium-containing layer (5) is regenerated by contacting the removal liquid with a chelate resin having a functional group represented by a following formula (1): where a plurality of Rs are identical divalent hydrocarbon groups having 1 to 5 carbons, and a portion of hydrogen atoms may be substituted with halogen atoms.Type: GrantFiled: November 16, 2021Date of Patent: November 12, 2024Assignees: SUMITOMO ELECTRIC INDUSTRIES. LTD., SUMITOMO ELECTRIC: PRINTED CIRCUITS, INC., MEC COMPANY LTD.Inventors: Shoichiro Sakai, Ryuta Ohsuka, Koji Nitta, Yoshihito Yamaguchi, Masaharu Yasuda, Akira Tsuchiko, Koji Kasuya, Kenji Nishie, Yu Fukui
-
Patent number: 12078785Abstract: There is provided an imaging lens with excellent optical characteristics which satisfies demand of a low profile and a low F-number. An imaging lens comprises in order from an object side to an image side, a first lens with negative refractive power having an object-side surface being convex in a paraxial region, a second lens with positive refractive power in a paraxial region, a third lens with the negative refractive power in a paraxial region, a fourth lens with the positive refractive power in a paraxial region, a fifth lens having a flat object-side surface and a flat image-side surface that are aspheric, and a sixth lens with the negative refractive power having an image-side surface being concave in a paraxial region.Type: GrantFiled: August 2, 2021Date of Patent: September 3, 2024Assignee: TOKYO VISIONARY OPTICS Co., Ltd.Inventors: Koji Nitta, Masaya Hashimoto
-
Patent number: 12061321Abstract: The present disclosure relates to a technical field of optical lenses, and discloses a camera optical lens. The camera optical lens includes seven lenses. An order of the seven lenses is sequentially from an object side to an image side, which is shown as follows: a first lens having a positive refractive power, a second lens having a negative refractive power, a third lens having a negative refractive power, a fourth lens having a positive refractive power, a fifth lens having a negative refractive power, a sixth lens having a positive refractive power, and a seventh lens having a negative refractive power. The camera optical lens provided by the present disclosure has excellent optical characteristics, and further has characteristics of large aperture, wide-angle, and ultra-thin, especially suitable for mobile phone camera lens assemblies and WEB camera lenses, which are composed of camera components having high pixels, such as CCD.Type: GrantFiled: November 25, 2021Date of Patent: August 13, 2024Assignee: AAC OPTICS (SUZHOU) CO., LTD.Inventors: Koji Nitta, Yanli Xie
-
Publication number: 20240221998Abstract: A coil device includes a base film that has a first principal surface and a second principal surface; a first coil wiring line that is disposed on the first principal surface and has a spirally wound portion; a second coil wiring line that is disposed on the second principal surface and has a spirally wound portion; a first protective layer that is disposed on the first principal surface to cover the first coil wiring line; a second protective layer that is disposed on the second principal surface to cover the second coil wiring line; and an electrically conductive section. A through hole is formed in the base film. The through hole extends through the base film along a thickness direction.Type: ApplicationFiled: December 26, 2022Publication date: July 4, 2024Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC PRINTED CIRCUITS, INC.Inventors: Maki IKEBE, Koji NITTA, Yoshio OKA, Shoichiro SAKAI, Michi OGATA
-
Publication number: 20240200220Abstract: A wet treatment apparatus is configured to treat a continuously moving sheet-shaped workpiece and includes a wet treatment tank including a side surface portion having a first slit, a pair of rolls located outside the wet treatment tank, the pair of rolls being spaced apart from the first slit and being arranged in such a manner as to nip the workpiece in a transverse direction, and a pair of treatment-liquid shield members disposed on a side opposite to a side on which the wet treatment tank is disposed with the pair of rolls interposed between the pair of treatment-liquid shield members and the wet treatment tank in a movement direction of the workpiece. In a direction parallel to a width of the first slit, a width of the shield member is larger than a width of the roll.Type: ApplicationFiled: April 13, 2022Publication date: June 20, 2024Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC PRINTED CIRCUITS, INC.Inventors: Kousuke MIURA, Koji NITTA, Shoichiro SAKAI
-
Patent number: 11994656Abstract: There is provided an imaging lens with excellent optical characteristics which satisfies demand of wide field of view, low-profileness and low F-number. An imaging lens comprises, in order from an object side to an image side, a first lens with positive refractive power having an object-side surface being convex in a paraxial region, a second lens with negative refractive power in a paraxial region, a third lens, a fourth lens being a double-sided aspheric lens, a fifth lens, a sixth lens having an image-side surface being concave in a paraxial region, and a seventh lens with negative refractive power having an image-side surface being concave in a paraxial region, wherein the image-side surface of the seventh lens is an aspheric surface having at least one pole point in a position off the optical axis, and predetermined conditional expressions are satisfied.Type: GrantFiled: June 10, 2021Date of Patent: May 28, 2024Assignee: TOKYO VISIONARY OPTICS Co., Ltd.Inventor: Koji Nitta
-
Patent number: 11988816Abstract: There is provided an imaging lens with excellent optical characteristics which satisfies demand of wide field of view, low-profileness and low F-number. An imaging lens comprises, in order from an object side to an image side, a first lens with positive refractive power having an object-side surface being convex in a paraxial region, a second lens with negative refractive power in a paraxial region, a third lens, a fourth lens being a double-sided aspheric lens, a fifth lens, a sixth lens having an image-side surface being concave in a paraxial region, and a seventh lens with negative refractive power having an image-side surface being concave in a paraxial region, wherein the image-side surface of the seventh lens is an aspheric surface having at least one pole point in a position off the optical axis, and predetermined conditional expressions are satisfied.Type: GrantFiled: August 2, 2021Date of Patent: May 21, 2024Assignee: TOKYO VISIONARY OPTICS Co., Ltd.Inventor: Koji Nitta
-
Patent number: 11979983Abstract: A printed wiring board includes an electrically insulating base film, and an electrically conductive pattern stacked on at least one surface side of the base film. An average width of multiple wiring portions included in the electrically conductive pattern is 5 ?m or greater and 20 ?m or less. Each of the wiring portions includes a seed layer and a plating layer. The plating layer includes copper crystal planes of a (111) plane, a (200) plane, a (220) plane, and a (311) plane. An intensity ratio IR220 of an X-ray diffraction intensity of the copper crystal plane (220) obtained by Equation (1) below is 0.05 or greater and 0.14 or less, IR220=I220/(I111+I220+I311)??(1) (where I111, I200, I220, I311 are respectively X-ray diffraction intensity of the (111) plane (200) plane, the (220) plane, and the (311) plane).Type: GrantFiled: July 4, 2019Date of Patent: May 7, 2024Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Maki Ikebe, Koji Nitta, Shoichiro Sakai
-
Publication number: 20240121898Abstract: A flexible printed circuit board according to an embodiment includes a base film and a first wire. The base film has a first surface. The first wire is disposed on the first surface. The first wire has a first layer and a second layer. The first layer is disposed on the first surface directly or indirectly. The second layer covers the first layer. In the first surface, a first groove is formed next to the first layer in a plan view. The second layer on a side surface of the first layer exists on a bottom surface and a side surface of the first groove.Type: ApplicationFiled: May 27, 2022Publication date: April 11, 2024Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC PRINTED CIRCUITS, INC.Inventors: Yosuke FUKAYA, Koji NITTA, Daisuke SATO
-
Patent number: 11950365Abstract: A flexible printed circuit board includes: a base film having a hole for forming a through hole; and a coil-shaped wiring layer layered on at least one surface side of the base film, wherein the wiring layer includes a land portion arranged at an inner peripheral surface of the hole and at a peripheral portion of the hole of the base film, and a winding portion arranged in a spiral shape with the land portion as an inside end portion or an outside end portion, wherein the winding portion includes a first winding portion that is an outermost circumference and a second winding portion that is inside relative to the outermost circumference, and wherein a ratio of an average thickness of the land portion to an average thickness of the second winding portion is 1.1 or more and 5 or less.Type: GrantFiled: December 16, 2020Date of Patent: April 2, 2024Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC PRINTED CIRCUITS, INC.Inventors: Shoichiro Sakai, Koji Nitta, Yoshio Oka, Junichi Motomura, Masanao Yamashita
-
Publication number: 20240096537Abstract: A printed wiring board includes a base film having a main surface, a coil wiring formed on the main surface, and a first connection land and a second connection land connected to one end and another end of the coil wiring, respectively. The main surface includes a first main surface and a second main surface opposite to the first main surface. The coil wiring includes a first coil wiring formed in a spiral shape on the first main surface, and a second coil wiring formed in a spiral shape on the second main surface and electrically connected to the first coil wiring. The first connection land and the second connection land are formed on the second main surface. The number of turns of the first coil wiring is more than the number of turns of the second coil wiring.Type: ApplicationFiled: August 17, 2022Publication date: March 21, 2024Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC PRINTED CIRCUITS, INC.Inventors: Yukie TSUDA, Koji NITTA, Kou NOGUCHI
-
Patent number: 11889624Abstract: A flexible printed circuit board includes a base film having an insulating property, and one or more interconnects laminated to at least one surface side of the base film. At least one of the one or more interconnects includes, in a longitudinal direction, a first portion and a second portion that is a portion other than the first portion, an average thickness of the second portion being greater than an average thickness of the first portion. A ratio of the average thickness of the second portion to the average thickness of the first portion is greater than or equal to 1.5 and less than or equal to 50.Type: GrantFiled: December 18, 2020Date of Patent: January 30, 2024Assignees: SUMITOMO ELECTRIC PRINTED CIRCUITS, INC., SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Yoshio Oka, Koji Nitta, Shoichiro Sakai, Yasushi Mochida, Tadahiro Kaibuki, Junichi Okaue