Patents by Inventor Tokiko Inoue
Tokiko Inoue 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: 9057809Abstract: A light irradiation device includes: a light source to output diffused light; and a light guide member to guide the diffused light to an irradiation point. The light guide member includes an incidence surface which the diffused light enters, a first emission surface to emit the entered diffused light, while further diffusing the entered diffused light with a first diffusion characteristic to emit the diffused light at a first diffusion angle, and a second emission surface to emit the entered diffused light, while further diffusing the entered diffused light with a second diffusion characteristics to emit the diffused light at a second diffusion angle. The second diffusion angle provided by the second diffusion characteristic is smaller than the first diffusion angle provided by the first diffusion characteristic.Type: GrantFiled: August 26, 2014Date of Patent: June 16, 2015Assignee: RICOH COMPANY, LTD.Inventors: Akihiro Iwamatsu, Tsuyoshi Fujimoto, Tokiko Inoue
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Publication number: 20150062668Abstract: A light irradiation device includes: a light source to output diffused light; and a light guide member to guide the diffused light to an irradiation point. The light guide member includes an incidence surface which the diffused light enters, a first emission surface to emit the entered diffused light, while further diffusing the entered diffused light with a first diffusion characteristic to emit the diffused light at a first diffusion angle, and a second emission surface to emit the entered diffused light, while further diffusing the entered diffused light with a second diffusion characteristics to emit the diffused light at a second diffusion angle. The second diffusion angle provided by the second diffusion characteristic is smaller than the first diffusion angle provided by the first diffusion characteristic.Type: ApplicationFiled: August 26, 2014Publication date: March 5, 2015Applicant: RICOH COMPANY, LTD.Inventors: Akihiro IWAMATSU, Tsuyoshi FUJIMOTO, Tokiko INOUE
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Patent number: 8970700Abstract: An imaging apparatus includes: an electronic circuit unit (30) including an imaging device (31) to acquire an object image formed by an imaging optical system (20); and a housing member (13) housing the electronic circuit unit (30). The electronic circuit unit (30) includes a thermally-conductive heat transfer member (37) in contact with an outer peripheral surface thereof which is in parallel with a fitting direction of the electronic circuit unit (30) into the housing member (13). The heat transfer member (37) includes a soft material portion (37b) in contact with the outer peripheral surface of the electronic circuit unit (37), and a plate portion (37a) in contact with the soft material portion (37b) and an inner peripheral wall surface of the housing member (13). The soft material portion (37b) is made of a shape-conformable member.Type: GrantFiled: June 6, 2011Date of Patent: March 3, 2015Assignee: Ricoh Company, Ltd.Inventors: Tokiko Inoue, Norihiko Sasaki, Mitsuru Nakajima
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Patent number: 8928956Abstract: An illumination system includes a light source unit including light emitting elements arranged in array in a main scan direction to project light beams radially, and an optical guide of a long length made from a translucent material to guide incident beams from an exit surface of the light source unit in a certain direction for output, and including at least one surface with a diffuse structure to diffuse a transmitted beam or a reflected beam among the incident beams, wherein the diffuse structure is configured to diffuse the beam at a center at a larger divergence angle than at ends in the main scan direction.Type: GrantFiled: February 25, 2013Date of Patent: January 6, 2015Assignee: Ricoh Company, Ltd.Inventors: Akihiro Iwamatsu, Mitsuru Nakajima, Tetsuya Ogata, Tsuyoshi Fujimoto, Tokiko Inoue, Chihiro Tanaka
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Patent number: 8848262Abstract: An optical radiation device includes a long light source unit in which light emitting elements are arranged in array, a long substrate on which the light source unit is mounted, a long optical guide to guide the light beams from the light emitting elements to a predetermined plane, and an optical collector to collect the light beams reflected by the predetermined plane. The length of an effective read area from a reading center of the optical collector to one end of the predetermined plane is different from that of an effective read area from the reading center to the other end thereof. The optical guide formed by injection molding includes a gate at one end in a length direction and a surface at the other end to exert total reflection, and is disposed so that the gate is positioned on the a same side as a shorter effective read area.Type: GrantFiled: November 28, 2012Date of Patent: September 30, 2014Assignee: Ricoh Company, Ltd.Inventors: Akihiro Iwamatsu, Tsuyoshi Fujimoto, Mitsuru Nakajima, Tokiko Inoue, Chihiro Tanaka
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Patent number: 8780416Abstract: A light irradiator including multiple point light sources arranged in a straight line, a light-transmissive light guiding member provided in front of the point light sources in an emission direction of beams of light emitted from the point light sources, the light guiding member guiding the beams of light in a predetermined direction toward a surface to be irradiated; and two or more protrusions protruding toward the point light sources, provided on a light entering surface of the light guiding member and arranged in the same direction as the point light sources. The light guiding member and the point light sources are positioned such that a distance between the protrusions provided to the light guiding member and irradiation surfaces of the point light sources is equal at two positions.Type: GrantFiled: November 16, 2012Date of Patent: July 15, 2014Assignee: Ricoh Company, Ltd.Inventors: Tokiko Inoue, Mitsuru Nakajima, Tsuyoshi Fujimoto, Akihiro Iwamatsu, Chihiro Tanaka
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Publication number: 20130222865Abstract: An illumination system includes a light source unit including light emitting elements arranged in array in a main scan direction to project light beams radially, and an optical guide of a long length made from a translucent material to guide incident beams from an exit surface of the light source unit in a certain direction for output, and including at least one surface with a diffuse structure to diffuse a transmitted beam or a reflected beam among the incident beams, wherein the diffuse structure is configured to diffuse the beam at a center at a larger divergence angle than at ends in the main scan direction.Type: ApplicationFiled: February 25, 2013Publication date: August 29, 2013Inventors: Akihiro IWAMATSU, Mitsuru NAKAJIMA, Tetsuya OGATA, Tsuyoshi FUJIMOTO, Tokiko INOUE, Chihiro TANAKA
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Publication number: 20130141766Abstract: An optical radiation device includes a long light source unit in which light emitting elements are arranged in array, a long substrate on which the light source unit is mounted, a long optical guide to guide the light beams from the light emitting elements to a predetermined plane, and an optical collector to collect the light beams reflected by the predetermined plane. The length of an effective read area from a reading center of the optical collector to one end of the predetermined plane is different from that of an effective read area from the reading center to the other end thereof. The optical guide formed by injection molding includes a gate at one end in a length direction and a surface at the other end to exert total reflection, and is disposed so that the gate is positioned on the a same side as a shorter effective read area.Type: ApplicationFiled: November 28, 2012Publication date: June 6, 2013Inventors: Akihiro IWAMATSU, Tsuyoshi FUJIMOTO, Mitsuru NAKAJIMA, Tokiko INOUE, Chihiro TANAKA
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Publication number: 20130135859Abstract: A light irradiator including multiple point light sources arranged in a straight line, a light-transmissive light guiding member provided in front of the point light sources in an emission direction of beams of light emitted from the point light sources, the light guiding member guiding the beams of light in a predetermined direction toward a surface to be irradiated; and two or more protrusions protruding toward the point light sources, provided on a light entering surface of the light guiding member and arranged in the same direction as the point light sources. The light guiding member and the point light sources are positioned such that a distance between the protrusions provided to the light guiding member and irradiation surfaces of the point light sources is equal at two positions.Type: ApplicationFiled: November 16, 2012Publication date: May 30, 2013Inventors: Tokiko INOUE, Mitsuru Nakajima, Tsuyoshi Fujimoto, Akihiro Iwamatsu, Chihiro Tanaka
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Publication number: 20130120734Abstract: A laser radar apparatus includes a light source; a light scanning unit configured to scan light irradiated from the light source; a light receiving unit configured to receive light that is reflected by an object, the light being irradiated from the light scanning unit onto the object and reflected by the object; and a porous member arranged between the object and the light receiving unit, the porous member including plural through holes.Type: ApplicationFiled: October 12, 2012Publication date: May 16, 2013Inventors: Tetsuya Ogata, Mitsuru Nakajima, Shuichi Suzuki, Kenichi Yoshimura, Akihiro Iwamatsu, Kohei Shimizu, Tokiko Inoue, Chihiro Tanaka
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Patent number: 8179580Abstract: An optical scanning device includes a light source; a scanning unit to deflect/scan a laser beam from the light source; an imaging optical system to focus the deflected and scanned laser beam to a scan-target surface; an electro-optic element to electrically change a refractive index thereof; a controller to control the refractive index of the electro-optic element to adjust deflection amount of the laser beam; and a positional shift detecting unit, disposed away from the light path, to detect a positional shift of the incident laser beam from an ideal position in a sub-scanning direction. The device further includes a beam splitting element, and the controller adjusts a deflection amount of the laser beam from the electro-optic element based on a detection result by the positional shift detecting unit and corrects a positional shift in the sub-scanning direction of the laser beam on the scan-target surface.Type: GrantFiled: May 12, 2011Date of Patent: May 15, 2012Assignee: Ricoh Company, Ltd.Inventors: Akihiro Iwamatsu, Kenichi Yoshimura, Kohei Shimizu, Tokiko Inoue, Mitsuru Nakajima
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Publication number: 20110298925Abstract: An imaging apparatus includes: an electronic circuit unit (30) including an imaging device (31) to acquire an object image formed by an imaging optical system (20); and a housing member (13) housing the electronic circuit unit (30). The electronic circuit unit (30) includes a thermally-conductive heat transfer member (37) in contact with an outer peripheral surface thereof which is in parallel with a fitting direction of the electronic circuit unit (30) into the housing member (13). The heat transfer member (37) includes a soft material portion (37b) in contact with the outer peripheral surface of the electronic circuit unit (37), and a plate portion (37a) in contact with the soft material portion (37b) and an inner peripheral wall surface of the housing member (13). The soft material portion (37b) is made of a shape-conformable member.Type: ApplicationFiled: June 6, 2011Publication date: December 8, 2011Inventors: Tokiko Inoue, Norihiko Sasaki, Mitsuru Nakajima
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Publication number: 20110286067Abstract: An optical scanning device includes a light source; a scanning unit to deflect/scan a laser beam from the light source; an imaging optical system to focus the deflected and scanned laser beam to a scan-target surface; an electro-optic element to electrically change a refractive index thereof; a controller to control the refractive index of the electro-optic element to adjust deflection amount of the laser beam; and a positional shift detecting unit, disposed away from the light path, to detect a positional shift of the incident laser beam from an ideal position in a sub-scanning direction. The device further includes a beam splitting element, and the controller adjusts a deflection amount of the laser beam from the electro-optic element based on a detection result by the positional shift detecting unit and corrects a positional shift in the sub-scanning direction of the laser beam on the scan-target surface.Type: ApplicationFiled: May 12, 2011Publication date: November 24, 2011Inventors: Akihiro IWAMATSU, Kenichi Yoshimura, Kohei Shimizu, Tokiko Inoue, Mitsuru Nakajima
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Patent number: 7663759Abstract: An image taken by an imaging device is displayed on a display unit. When a confirmation instruction is inputted through an input unit, image teaching is performed while the image displayed on the display unit is set to a setting object image. A measurement item which is of a candidate of a measurement process including specification of a reference position is displayed as the measurement process to accept selection. Specification of cutout area which constitutes one measurement target region is accepted, a measurement point including a local region or a feature point which is used for the measurement is automatically set in the measurement target region based on pieces of information on the set measurement process and reference position.Type: GrantFiled: July 11, 2007Date of Patent: February 16, 2010Assignee: Omron CorporationInventors: Tokiko Inoue, Yusuke Iida, Tatsuya Matsunaga, Hitoshi Oba
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Publication number: 20080013103Abstract: An image taken by an imaging device is displayed on a display unit. When a confirmation instruction is inputted through an input unit, image teaching is performed while the image displayed on the display unit is set to a setting object image. A measurement item which is of a candidate of a measurement process including specification of a reference position is displayed as the measurement process to accept selection. Specification of cutout area which constitutes one measurement target region is accepted, a measurement point including a local region or a feature point which is used for the measurement is automatically set in the measurement target region based on pieces of information on the set measurement process and reference position.Type: ApplicationFiled: July 11, 2007Publication date: January 17, 2008Inventors: Tokiko INOUE, Yusuke Iida, Tatsuya Matsunaga, Hitoshi Oba