Patents by Inventor Kazuhiro Kumei
Kazuhiro Kumei 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: 20150358518Abstract: An image pickup apparatus includes a solid-state image pickup device chip, an FPC whose terminals are connected to the solid-state image pickup device chip, and a plurality of electronic components mounted on a front surface of the FPC, wherein behind a back face of the solid-state image pickup device chip, the FPC is disposed by being folded in such a way that the FPC will provide mounting surfaces for the plurality of electronic components in a plurality of layers and that the plurality of electronic components will be superimposed via the FPC.Type: ApplicationFiled: August 17, 2015Publication date: December 10, 2015Applicant: OLYMPUS CORPORATIONInventors: Hiroshi ISHII, Yuya ISHIDA, Kazuhiro KUMEI, Kazuyoshi AKIBA
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Patent number: 9007449Abstract: An image-capturing apparatus and a repair method thereof are provided. The image-capturing apparatus includes a lens frame to which one or more lenses are fixed; an image-capturing frame to which an image-capturing device is fixed; and a fixing member for fixing the lens frame and the image-capturing frame to each other without adhering a fitted portion between the lens frame and the image-capturing frame. The repair method for the image-capturing apparatus includes destructing a fixing member for fixing to each other a lens frame to which one or more lenses are fixed and an image-capturing frame to which an image-capturing device is fixed, and releasing fixing between the frames; replacing at least either of the lens frame and the image-capturing frame; and fixing to each other the lens frame and the image-capturing frame.Type: GrantFiled: January 5, 2007Date of Patent: April 14, 2015Assignees: Olympus Medical Systems Corp., Olympus CorporationInventors: Takahiko Mitani, Kazuhiro Kumei, Kazuyoshi Akiba, Seiji Sakai, Hironobu Ichimura, Masahiro Kawauchi
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Patent number: 8444548Abstract: An insertion unit has a channel through which a treatment tool can be inserted. A distal end of the insertion unit has a single-focus objective optical system or a focal-point-variable objective optical system to focus the optical image on a light receiving surface of an image capturing element. At a short object distance from the distal end, an image signal with a sufficient resolution is obtained from the image capturing element. In this state, a treatment tool projected by a reduced amount from a distal end opening of the channel is captured on a light receiving surface of the image capturing element. A required resolution is also provided for a far side.Type: GrantFiled: September 30, 2010Date of Patent: May 21, 2013Assignee: Olympus Medical Systems Corp.Inventor: Kazuhiro Kumei
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Publication number: 20110021872Abstract: An insertion unit has a channel through which a treatment tool can be inserted. A distal end of the insertion unit has a single-focus objective optical system or a focal-point-variable objective optical system to focus the optical image on a light receiving surface of an image capturing element. At a short object distance from the distal end, an image signal with a sufficient resolution is obtained from the image capturing element. In this state, a treatment tool projected by a reduced amount from a distal end opening of the channel is captured on a light receiving surface of the image capturing element. A required resolution is also provided for a far side.Type: ApplicationFiled: September 30, 2010Publication date: January 27, 2011Applicants: OLYMPUS MEDICAL SYSTEMS CORP., OLYMPUS CORPORATIONInventor: Kazuhiro Kumei
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Patent number: 7828721Abstract: An insertion unit has a channel through which a treatment tool can be inserted. A distal end of the insertion unit has a single-focus objective optical system or a focal-point-variable objective optical system to focus the optical image on a light receiving surface of an image capturing element. At a short object distance from the distal end, an image signal with a sufficient resolution is obtained from the image capturing element. In this state, a treatment tool projected by a reduced amount from a distal end opening of the channel is captured on a light receiving surface of the image capturing element. A required resolution is also provided for a far side.Type: GrantFiled: November 6, 2006Date of Patent: November 9, 2010Assignees: Olympus Medical Systems Corp., Olympus CorporationInventors: Kazuhiro Kumei, Takayuki Kato
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Patent number: 7789823Abstract: This endoscope is equipped with a fixed focus image pickup unit which is constructed of an objective optical system, and a solid state color image pickup device in which a color filter is arranged every pixel, the solid state image pickup device fulfilling a conditional expression (300<IH/P<550), and the objective optical system fulfilling a conditional expression (300<Fl/P<550) and a conditional expression (2400×P<Fno.<4200×P), and an image pickup plane of the solid state image pickup device is arranged in a position where an MTF on an optical axis in a spatial frequency 1/(3×P) of the objective optical system at 4 mm of object distance, and an MTF on the optical axis in a spatial frequency 1/(3×P) at 50 mm of object distance become 10% or more together.Type: GrantFiled: November 9, 2006Date of Patent: September 7, 2010Assignee: Olympus CorporationInventors: Takayuki Kato, Kazuhiro Kumei
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Publication number: 20090268019Abstract: An image pickup apparatus includes a solid-state image pickup device chip, an FPC whose terminals are connected to the solid-state image pickup device chip, and a plurality of electronic components mounted on a front surface of the FPC, wherein behind a back face of the solid-state image pickup chip, the FPC is disposed by being folded in such a way that the FPC will provide mounting surfaces for the plurality of electronic components in a plurality of layers and that the plurality of electronic components will be superimposed via the FPC.Type: ApplicationFiled: July 8, 2009Publication date: October 29, 2009Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Hiroshi ISHII, Yuya ISHIDA, Kazuhiro KUMEI, Kazuyoshi AKIBA
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Publication number: 20070118019Abstract: A tip portion main body provided on the tip of the insertion portion has an erecting device disposed in the vicinity of the channel tip opening, capable of changing the protruding direction of the treatment tool, a solid-state image-capturing device, an objective optical system, having a predetermined field of view angle for capturing an image within the body cavity including the treatment tool protruding from the tip opening with a first field of view angle equating to the upper field of view angle during observation, and forms this image at the solid-state image-capturing device; and a second field of view angle equating to the lower field of view angle during observation, with the tip side of the insertion portion as the field of vision range, and the first field of view angle is set to be the same or smaller than the second field of view angle.Type: ApplicationFiled: January 5, 2007Publication date: May 24, 2007Applicants: OLYMPUS MEDICAL SYSTEMS CORP., OLYMPUS CORPORATIONInventors: Takahiko Mitani, Kazuhiro Kumei, Kazuyoshi Akiba, Seiji Sakai, Hironobu Ichimura, Masahiro Kawauchi
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Publication number: 20070055104Abstract: An insertion unit has a channel through which a treatment tool can be inserted. A distal end of the insertion unit has a single-focus objective optical system or a focal-point-variable objective optical system to focus the optical image on a light receiving surface of an image capturing element. At a short object distance from the distal end, an image signal with a sufficient resolution is obtained from the image capturing element. In this state, a treatment tool projected by a reduced amount from a distal end opening of the channel is captured on a light receiving surface of the image capturing element. A required resolution is also provided for a far side.Type: ApplicationFiled: November 6, 2006Publication date: March 8, 2007Applicants: Olympus Medical Systems Corp., Olympus CorporationInventors: Kazuhiro Kumei, Takayuki Kato
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Publication number: 20070055100Abstract: This endoscope is equipped with a fixed focus image pickup unit which is constructed of an objective optical system, and a solid state color image pickup device in which a color filter is arranged every pixel, the solid state image pickup device fulfilling a conditional expression (300<IH/P<550), and the objective optical system fulfilling a conditional expression (300<Fl/P<550) and a conditional expression (2400×P<Fno.<4200×P), and an image pickup plane of the solid state image pickup device is arranged in a position where an MTF on an optical axis in a spatial frequency 1/(3×P) of the objective optical system at 4 mm of object distance, and an MTF on the optical axis in a spatial frequency 1/(3×P) at 50 mm of object distance become 10% or more together.Type: ApplicationFiled: November 9, 2006Publication date: March 8, 2007Inventors: Takayuki Kato, Kazuhiro Kumei
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Patent number: 6984206Abstract: An endoscope system consists mainly of: an endoscope having a solid-state imaging device and an objective optical system that converges an object image on said solid-state imaging device; and a signal processing unit that processes an image signal produced by the endoscope so as to produce a video signal. The objective optical system includes an optical phase modulation member. The optical phase modulation member exhibits a response of 0.2 or more derived from an optical transfer function relative to a spatial frequency on the solid-state imaging device determined based on the Nyquist theorem, that is, a Nyquist frequency, over a wider range of distances than a depth of field offered by an objective optical system not having the optical phase modulation member.Type: GrantFiled: December 13, 2002Date of Patent: January 10, 2006Assignee: Olympus CorporationInventors: Kazuhiro Kumei, Takeshi Suga, Hisao Yabe, Tsutomu Hirai, Jun Hiroya, Hiroshi Ishii
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Publication number: 20030122926Abstract: An endoscope system in accordance with the present invention consists mainly of: an endoscope having a solid-state imaging device and an objective optical system that converges an object image on said solid-state imaging device; and a signal processing unit that processes an image signal produced by the endoscope so as to produce a video signal. The objective optical system includes an optical phase modulation member. The optical phase modulation member exhibits a response of 0.2 or more derived from an optical transfer function relative to up to a spatial frequency on the solid-state imaging device determined based on the Nyquist theorem, that is, a Nyquist frequency, over a wider range of distances than a depth of field offered by an objective optical system not having the optical phase modulation member.Type: ApplicationFiled: December 13, 2002Publication date: July 3, 2003Applicant: OLYMPUS OPTICAL CO., LTD.Inventors: Kazuhiro Kumei, Takeshi Suga, Hisao Yabe, Tsutomu Hirai, Jun Hiroya, Hiroshi Ishii