Patents by Inventor Ryohei Takayama
Ryohei Takayama 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: 11941313Abstract: A control device for a working machine includes a position designation receiving unit configured to identify a designated position in a state image which is displayed on a display panel and a screen control unit configured to perform screen control based on an image displayed at the identified position out of part images constituting parts of the state image.Type: GrantFiled: January 17, 2020Date of Patent: March 26, 2024Assignee: Komatsu Ltd.Inventors: Yoshito Kumakura, Takayuki Nishihata, Daiki Arimatsu, Kentaro Takayama, Ryohei Hasegawa, Junki Irie
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Patent number: 9494300Abstract: An illuminating apparatus includes a light source and an optical member that is disposed in front of the light source and controls light distribution of light emitted from the light source. The optical member has a pair of principal surfaces, and a plurality of prisms extending in one direction are provided on at least one among the pair of principal surfaces. The plurality of prisms include a plurality of reflecting prisms that are provided in a first region A among two regions divided at a virtual plane including a reference axis and emit light entered upon reflecting it at a reflecting surface and a plurality of refracting prisms that are provided in a second region among the two regions and emit light entered upon refracting it at a refracting surface.Type: GrantFiled: November 17, 2014Date of Patent: November 15, 2016Assignee: MINEBEA CO., LTD.Inventors: Ryohei Takayama, Hideki Kato
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Patent number: 9476565Abstract: An illuminating apparatus includes: a light source, and a lens sheet arranged on an optical axis of the light source on which a plurality of prisms arranged in concentric circles centered on the optical axis of the light source are formed. A light diffusing part including a plurality of hemispherical light scattering elements is provided on the lens sheet, the light diffusing part includes light scattering elements whose shape is distorted due to influence of light scattering elements that are adjacent in at least one direction, and the plurality of light scattering elements is arranged in concentric circles centered on the optical axis of the light source.Type: GrantFiled: June 12, 2013Date of Patent: October 25, 2016Assignee: MINEBEA CO., LTD.Inventors: Koji Sakai, Ryohei Takayama
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Patent number: 9429299Abstract: An illuminating apparatus includes a light source and an optical member that controls light distribution of light emitted from the light source in a forward direction. A plurality of prisms extending in one direction are provided on one principal surface of the optical member in regions on both sides when divided at a virtual plane that includes a reference axis. The plurality of prisms include reflecting prisms that reflect light from a light source that is disposed virtually on the reference axis and emit this light from the optical member. The light source is disposed such that its optical axis is shifted in one direction relative to the reference axis.Type: GrantFiled: January 19, 2016Date of Patent: August 30, 2016Assignee: MINEBEA CO., LTD.Inventor: Ryohei Takayama
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Publication number: 20160131337Abstract: An illuminating apparatus includes a light source and an optical member that controls light distribution of light emitted from the light source in a forward direction. A plurality of prisms extending in one direction are provided on one principal surface of the optical member in regions on both sides when divided at a virtual plane that includes a reference axis. The plurality of prisms include reflecting prisms that reflect light from a light source that is disposed virtually on the reference axis and emit this light from the optical member. The light source is disposed such that its optical axis is shifted in one direction relative to the reference axis.Type: ApplicationFiled: January 19, 2016Publication date: May 12, 2016Inventor: Ryohei TAKAYAMA
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Patent number: 9267666Abstract: An illuminating apparatus includes a light source and an optical member that controls light distribution of light emitted from the light source in a forward direction. A plurality of prisms extending in one direction are provided on one principal surface of the optical member in regions on both sides when divided at a virtual plane that includes a reference axis. The plurality of prisms include reflecting prisms that reflect light from a light source that is disposed virtually on the reference axis and emit this light from the optical member. The light source is disposed such that its optical axis is shifted in one direction relative to the reference axis.Type: GrantFiled: August 7, 2014Date of Patent: February 23, 2016Assignee: MINEBEA CO., LTD.Inventor: Ryohei Takayama
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Publication number: 20150176808Abstract: An illuminating apparatus includes a light source and an optical member that is disposed in front of the light source and controls light distribution of light emitted from the light source. The optical member has a pair of principal surfaces, and a plurality of prisms extending in one direction are provided on at least one among the pair of principal surfaces. The plurality of prisms include a plurality of reflecting prisms that are provided in a first region A among two regions divided at a virtual plane including a reference axis and emit light entered upon reflecting it at a reflecting surface and a plurality of refracting prisms that are provided in a second region among the two regions and emit light entered upon refracting it at a refracting surface.Type: ApplicationFiled: November 17, 2014Publication date: June 25, 2015Inventors: Ryohei TAKAYAMA, Hideki KATO
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Publication number: 20150062916Abstract: An illuminating apparatus includes a light source and an optical member that controls light distribution of light emitted from the light source in a forward direction. A plurality of prisms extending in one direction are provided on one principal surface of the optical member in regions on both sides when divided at a virtual plane that includes a reference axis. The plurality of prisms include reflecting prisms that reflect light from a light source that is disposed virtually on the reference axis and emit this light from the optical member. The light source is disposed such that its optical axis is shifted in one direction relative to the reference axis.Type: ApplicationFiled: August 7, 2014Publication date: March 5, 2015Inventor: Ryohei TAKAYAMA
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Patent number: 8894250Abstract: In an illuminating device, when exiting lights come out from a lens sheet, the optical paths of the exiting lights are deflected in a direction opposite to an optical axis of a light source by means of a plurality of prisms which are included in a first lens group arranged on an inward side of the lens sheet located adjacent to the optical axis of the light source and each of which has a inclined face facing toward the optical axis of the light source, wherein the exiting lights from the light source via the first lens group of the lens sheet are adapted to mix with exiting lights from the light source via a second lens group located outside the first lens group, whereby the degree of color unevenness is reduced, that appears inherently when a pseudo white LED is used as the light source of the illuminating device.Type: GrantFiled: February 27, 2012Date of Patent: November 25, 2014Assignee: Minebea Co., Ltd.Inventors: Masaki Asai, Koji Sakai, Ryohei Takayama
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Patent number: 8727580Abstract: An illuminating device has a light source that includes a plurality of light emitting devices and a phosphor; and a lens sheet that stays on an optical axis of the light source, the lens sheet having a plurality of prisms that is symmetrically arranged with respect to the optical axis of the light source. The plurality of prisms is configured at least on a surface of the lens sheet in which to face the light source, and a plurality of light scattering elements is configured at least on a surface of the lens sheet in which not to face the light source.Type: GrantFiled: July 6, 2012Date of Patent: May 20, 2014Assignee: Minebea Co., Ltd.Inventors: Ryohei Takayama, Masaki Asai, Koji Sakai
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Publication number: 20130343035Abstract: An illuminating apparatus includes: a light source, and a lens sheet arranged on an optical axis of the light source on which a plurality of prisms arranged in concentric circles centered on the optical axis of the light source are formed. A light diffusing part including a plurality of hemispherical light scattering elements is provided on the lens sheet, the light diffusing part includes light scattering elements whose shape is distorted due to influence of light scattering elements that are adjacent in at least one direction, and the plurality of light scattering elements is arranged in concentric circles centered on the optical axis of the light source.Type: ApplicationFiled: June 12, 2013Publication date: December 26, 2013Applicant: MINEBEA CO., LTD.Inventors: Koji SAKAI, Ryohei TAKAYAMA
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Publication number: 20130010454Abstract: An illuminating device has a light source that includes a plurality of light emitting devices and a phosphor; and a lens sheet that stays on an optical axis of the light source, the lens sheet having a plurality of prisms that is symmetrically arranged with respect to the optical axis of the light source. The plurality of prisms is configured at least on a surface of the lens sheet in which to face the light source, and a plurality of light scattering elements is configured at least on a surface of the lens sheet in which not to face the light source.Type: ApplicationFiled: July 6, 2012Publication date: January 10, 2013Applicant: MINEBEA CO., LTD.Inventors: Ryohei TAKAYAMA, Masaki ASAI, Koji SAKAI
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Publication number: 20120300466Abstract: In an illuminating device, when exiting lights come out from a lens sheet, the optical paths of the exiting lights are deflected in a direction opposite to an optical axis of a light source by means of a plurality of prisms which are included in a first lens group arranged on an inward side of the lens sheet located adjacent to the optical axis of the light source and each of which has a inclined face facing toward the optical axis of the light source, wherein the exiting lights from the light source via the first lens group of the lens sheet are adapted to mix with exiting lights from the light source via a second lens group located outside the first lens group, whereby the degree of color unevenness is reduced, that appears inherently when a pseudo white LED is used as the light source of the illuminating device.Type: ApplicationFiled: February 27, 2012Publication date: November 29, 2012Applicant: MINEBEA CO., LTD.Inventors: Masaki ASAI, Koji SAKAI, Ryohei TAKAYAMA
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Patent number: 8118465Abstract: There is provided a spread illuminating apparatus including an LED, a light guide plate and a flexible printed circuit board on which the LED is mounted, wherein the light guide plate includes: a light entrance end surface at which the light source is disposed; a light emitting portion from which light emitted from the light source and introduced into the light guide plate exits out in a spread manner; a slope portion which is disposed between the light entrance end surface and the light emitting portion and which has a thickness decreasing toward the light emitting portion; and a seat block disposed at the slope portion and configured to fixedly receive the flexible printed circuit board. In the spread illuminating apparatus, the length of the slope portion is substantially 1.78 times as large as the largest thickness of the slope portion.Type: GrantFiled: September 17, 2010Date of Patent: February 21, 2012Assignee: Minebea Co., Ltd.Inventors: Toru Kunimochi, Ryohei Takayama, Akiko Suma
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Publication number: 20110103091Abstract: There is provided a spread illuminating apparatus including an LED, a light guide plate and a flexible printed circuit board on which the LED is mounted, wherein the light guide plate includes: a light entrance end surface at which the light source is disposed; a light emitting portion from which light emitted from the light source and introduced into the light guide plate exits out in a spread manner; a slope portion which is disposed between the light entrance end surface and the light emitting portion and which has a thickness decreasing toward the light emitting portion; and a seat block disposed at the slope portion and configured to fixedly receive the flexible printed circuit board. In the spread illuminating apparatus, the length of the slope portion is substantially 1.78 times as large as the largest thickness of the slope portion.Type: ApplicationFiled: September 17, 2010Publication date: May 5, 2011Applicant: MINEBEA CO., LTD.Inventors: Toru Kunimochi, Ryohei Takayama, Akiko Suma