Patents by Inventor Ryu OTA
Ryu OTA 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: 20240000303Abstract: An endoscope device includes a processor configured to calculate light source control information based on first information regarding a scope and second information regarding a light source device, and to control a light source of the light source device based on the light source control information. The second information includes a ratio of an amount of light emitted from a distal end of a reference scope to an amount of light emitted from the light source device to the reference scope.Type: ApplicationFiled: September 13, 2023Publication date: January 4, 2024Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Takeshi ITO, Susumu HASHIMOTO, Ryuichi YAMAZAKI, Ryu OTA, Makoto TSUNAKAWA, Jumpei ISHIKAWA, Nobuyoshi ASAOKA, Masahiro NISHIO, Kazuto FUJIWARA, Hideyuki NAGAOKA, Masato TODA
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Patent number: 9885840Abstract: An optical transmission connector device includes: a transmission-side connector sending optical signals; and a reception-side connector receiving the optical signals sent from the transmission-side connector. The transmission-side and the reception-side connectors have: optical fibers transmitting optical signals; and optical members disposed in contact with or in the vicinity of one end surfaces of the optical fibers. The optical member of the transmission-side connector is formed so as to convert the optical signals emitted from the one end surfaces of the optical fibers into approximately parallel beams of light and so as to cause the centers of light beams of the approximately parallel beams of light to intersect at approximately one point. The optical member of the reception-side connector is formed so as to cause the optical signals converted into the approximately parallel beams of light at the optical member of the transmission-side connector to enter the separate optical fibers.Type: GrantFiled: June 22, 2017Date of Patent: February 6, 2018Assignee: OLYMPUS CORPORATIONInventor: Ryu Ota
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Publication number: 20170285278Abstract: An optical transmission connector device includes: a transmission-side connector sending optical signals; and a reception-side connector receiving the optical signals sent from the transmission-side connector. The transmission-side and the reception-side connectors have: optical fibers transmitting optical signals; and optical members disposed in contact with or in the vicinity of one end surfaces of the optical fibers. The optical member of the transmission-side connector is formed so as to convert the optical signals emitted from the one end surfaces of the optical fibers into approximately parallel beams of light and so as to cause the centers of light beams of the approximately parallel beams of light to intersect at approximately one point. The optical member of the reception-side connector is formed so as to cause the optical signals converted into the approximately parallel beams of light at the optical member of the transmission-side connector to enter the separate optical fibers.Type: ApplicationFiled: June 22, 2017Publication date: October 5, 2017Applicant: OLYMPUS CORPORATIONInventor: Ryu OTA
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Patent number: 8988794Abstract: An image pickup optical system includes in order from an object side, a first lens having a positive refractive power, a second lens having a negative refractive power, a third lens having a positive refractive power, and a fourth lens having a negative refractive power. The first lens has a biconvex shape. An image-side surface of the second lens has a shape such that, a concave surface is directed toward an image side. At least an image-side surface of the third lens has a shape such that, a convex surface is directed toward the image side. An aperture is disposed nearest to the object side, and the following conditional expression (1) is satisfied: 0.9<f1/f??(1), where f1 denotes a focal length of the first lens and f denotes a focal length of the overall image pickup optical system.Type: GrantFiled: March 8, 2013Date of Patent: March 24, 2015Assignee: Olympus CorporationInventor: Ryu Ota
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Patent number: 8941926Abstract: A zoom lens includes in order from an object side, a first lens group having a positive refractive power, a second lens group having a negative refractive power, a third lens group having a negative refractive power, a fourth lens group having a positive refractive power, a fifth lens group having a positive refractive power, and a last lens group having a positive refractive power. At the time of zooming from a wide angle end to a telephoto end, the second lens group and the third lens group move, and one of the fourth lens group, the fifth lens group, and the last lens group moves.Type: GrantFiled: September 26, 2012Date of Patent: January 27, 2015Assignee: Olympus CorporationInventors: Shinichi Mihara, Ryu Ota
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Patent number: 8730587Abstract: A zoom lens includes in order from an object side, a first lens group having a positive refractive power, a second lens group having a negative refractive power, a third lens group having a positive refractive power, a fourth lens group having a positive refractive, and a last lens group having a positive refractive index, and at the time of zooming from the wide angle end to the telephoto end, the first lens group is fixed, the second lens group moves toward a side of an image plane, the third lens group is fixed, and the fourth lens group moves, and at the time of focusing, the fourth lens group moves. The zoom lens satisfies the following conditional expression (101) 0.20<log(?34T/?34W)<0.9·log ???(101).Type: GrantFiled: June 5, 2012Date of Patent: May 20, 2014Assignee: Olympus CorporationInventors: Ryu Ota, Shinichi Mihara
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Publication number: 20130258130Abstract: A zoom lens includes in order from an object side, a first lens group having a positive refractive power, a second lens group having a negative refractive power, a third lens group having a negative refractive power, a fourth lens group having a positive refractive power, a fifth lens group having a positive refractive power, and a last lens group having a positive refractive power. At the time of zooming from a wide angle end to a telephoto end, the second lens group and the third lens group move, and one of the fourth lens group, the fifth lens group, and the last lens group moves.Type: ApplicationFiled: September 26, 2012Publication date: October 3, 2013Applicant: OLYMPUS CORPORATIONInventors: Shinichi MIHARA, Ryu OTA
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Publication number: 20130250440Abstract: An image pickup optical system comprises in order from an object side, a first lens having a positive refractive power, a second lens having a negative refractive power, a third lens having a positive refractive power, and a fourth lens having a negative refractive power. The first lens has a biconvex shape. An image-side surface of the second lens has a shape such that, a concave surface is directed toward an image side. At least an image-side surface of the third lens has a shape such that, a convex surface is directed toward the image side. An aperture is disposed nearest to the object side, and the following conditional expression (1)is satisfied. 0.Type: ApplicationFiled: March 8, 2013Publication date: September 26, 2013Applicant: OLYMPUS CORPORATIONInventor: Ryu OTA
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Publication number: 20120314298Abstract: A zoom lens includes in order from an object side, a first lens group having a positive refractive power, a second lens group having a negative refractive power, a third lens group having a positive refractive power, a fourth lens group having a positive refractive, and a last lens group having a positive refractive index, and at the time of zooming from the wide angle end to the telephoto end, the first lens group is fixed, the second lens group moves toward a side of an image plane, the third lens group is fixed, and the fourth lens group moves, and at the time of focusing, the fourth lens group moves. The zoom lens satisfies the following conditional expression (101) 0.20<log(?34T/?34W)<0.Type: ApplicationFiled: June 5, 2012Publication date: December 13, 2012Applicant: OLYMPUS CORPORATIONInventors: Ryu OTA, Shinichi MIHARA