Patents by Inventor Naofumi MIRUMACHI
Naofumi MIRUMACHI 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: 10365444Abstract: The optical receptacle according to the present invention comprises: a first optical surface, a second optical surface, an optical separating part and a third optical surface. The optical separating part includes a first dividing reflection surface for causing a part of the emittance light incident on the first optical surface to be internally reflected toward the second optical surface as the signal light, and a second dividing reflection surface for causing a part of the emittance light incident on the first optical surface to be internally reflected toward the third optical surface as the monitor light. The entire light path between the first optical surface, the optical separating part, and the second optical surface is located inside the optical receptacle.Type: GrantFiled: January 21, 2016Date of Patent: July 30, 2019Assignee: Enplas CorporationInventors: Shimpei Morioka, Naofumi Mirumachi
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Patent number: 10261272Abstract: This optical receptacle has: a first optical surface on which light emitted from a photoelectric conversion element is incident; a second optical surface for emitting the light incident on the first optical surface to an end surface of an optical transmission body; a light separating part for separating the light incident on the first optical surface into signal light oriented toward the end surface of the optical transmission body and monitor light oriented toward a detection element so as to proceed in a direction substantially opposite to the progress direction of the signal light; and a third optical surface for emitting the monitor light separated by the light separating part toward the detection element. The entire optical path between the first optical surface and the second optical surface is positioned inside the optical receptacle.Type: GrantFiled: January 21, 2016Date of Patent: April 16, 2019Assignee: ENPLAS CORPORATIONInventors: Shimpei Morioka, Naofumi Mirumachi, Yasuhiro Suzuki
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Publication number: 20180017743Abstract: The optical receptacle according to the present invention comprises: a first optical surface, a second optical surface, an optical separating part and a third optical surface. The optical separating part includes a first dividing reflection surface for causing a part of the emittance light incident on the first optical surface to be internally reflected toward the second optical surface as the signal light, and a second dividing reflection surface for causing a part of the emittance light incident on the first optical surface to be internally reflected toward the third optical surface as the monitor light. The entire light path between the first optical surface, the optical separating part, and the second optical surface is located inside the optical receptacle.Type: ApplicationFiled: January 21, 2016Publication date: January 18, 2018Inventors: Shimpei MORIOKA, Naofumi MIRUMACHI
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Publication number: 20170371111Abstract: This optical receptacle has: a first optical surface on which light emitted from a photoelectric conversion element is incident; a second optical surface for emitting the light incident on the first optical surface to an end surface of an optical transmission body; a light separating part for separating the light incident on the first optical surface into signal light oriented toward the end surface of the optical transmission body and monitor light oriented toward a detection element so as to proceed in a direction substantially opposite to the progress direction of the signal light; and a third optical surface for emitting the monitor light separated by the light separating part toward the detection element. The entire optical path between the first optical surface and the second optical surface is positioned inside the optical receptacle.Type: ApplicationFiled: January 21, 2016Publication date: December 28, 2017Inventors: Shimpei MORIOKA, Naofumi MIRUMACHI, Yasuhiro SUZUKI
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Patent number: 9235947Abstract: A subject discriminating apparatus discriminates a subject having an unevenness pattern on a surface of the subject. The subject discriminating apparatus includes: a transparent unit including a supporting surface supporting the subject; a light irradiation unit irradiating illumination light onto the surface of the subject through the transparent unit; an imaging unit imaging an imaging region including at least a part of the transparent unit, and generating image data; and a discrimination processing unit discriminating the subject, using the image data generated by the imaging unit. The discrimination processing unit discriminates the subject based on discrimination image data generated by correcting subject image data using correction image data. The subject image data is generated by imaging the imaging region in a state of the subject presenting in the imaging region. The correction image data is generated by imaging the imaging region free from the subject in the imaging region.Type: GrantFiled: March 28, 2012Date of Patent: January 12, 2016Assignee: LAUREL PRECISION MACHINES CO., LTD.Inventors: Naofumi Mirumachi, Masataka Takahashi
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Patent number: 8561776Abstract: An imaging unit images a subject having an unevenness pattern on a surface. The imaging unit includes: a surface light source that emits with a constant output illumination light illuminating the surface of the subject; an imager that receives reflected light reflected by the surface of the subject; and a beam splitter that is arranged at a location at which the illumination light emitted from the surface light source and the reflected light incident on the imager intersect with each other. The illumination light emitted from the surface light source is incident on the surface of the subject via the beam splitter. The reflected light reflected by the surface of the subject is incident on the imager via the beam splitter. The illumination light incident on the surface of the subject includes parallel light that is perpendicularly incident on the surface of the subject, and diffused light.Type: GrantFiled: March 27, 2012Date of Patent: October 22, 2013Assignee: Laurel Precision Machines Co., Ltd.Inventors: Naofumi Mirumachi, Masao Mori, Masataka Takahashi
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Publication number: 20120247918Abstract: An imaging unit images a subject having an unevenness pattern on a surface. The imaging unit includes: a surface light source that emits with a constant output illumination light illuminating the surface of the subject; an imager that receives reflected light reflected by the surface of the subject; and a beam splitter that is arranged at a location at which the illumination light emitted from the surface light source and the reflected light incident on the imager intersect with each other. The illumination light emitted from the surface light source is incident on the surface of the subject via the beam splitter. The reflected light reflected by the surface of the subject is incident on the imager via the beam splitter. The illumination light incident on the surface of the subject includes parallel light that is perpendicularly incident on the surface of the subject, and diffused light.Type: ApplicationFiled: March 27, 2012Publication date: October 4, 2012Inventors: Naofumi MIRUMACHI, Masao MORI, Masataka TAKAHASHI
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Publication number: 20120249780Abstract: A subject discriminating apparatus discriminates a subject having an unevenness pattern on a surface of the subject. The subject discriminating apparatus includes: a transparent unit including a supporting surface supporting the subject; a light irradiation unit irradiating illumination light onto the surface of the subject through the transparent unit; an imaging unit imaging an imaging region including at least a part of the transparent unit, and generating image data; and a discrimination processing unit discriminating the subject, using the image data generated by the imaging unit. The discrimination processing unit discriminates the subject based on discrimination image data generated by correcting subject image data using correction image data. The subject image data is generated by imaging the imaging region in a state of the subject presenting in the imaging region. The correction image data is generated by imaging the imaging region free from the subject in the imaging region.Type: ApplicationFiled: March 28, 2012Publication date: October 4, 2012Inventors: Naofumi MIRUMACHI, Masataka Takahashi