Patents by Inventor Yoshimasa Osumi
Yoshimasa Osumi 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: 9864128Abstract: A light guide body configured to guide light from a light source that enters the light guide body has a light exit surface having at least one light emitting region from which light from the light source is emitted, and a plurality of reflection patterns arranged in a reflection region of a counter surface facing the light exit surface. The reflection region is a region corresponding to the at least one light emitting region. The reflection region has at least a first reflection region that reflects light in a first direction, and a second reflection region that reflects light in a second direction differing from the first direction.Type: GrantFiled: October 30, 2014Date of Patent: January 9, 2018Assignee: OMRON CorporationInventors: Yoshihiko Takagi, Masayuki Shinohara, Yoshimasa Osumi, Norikazu Kitamura
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Patent number: 9798062Abstract: A display device has a liquid crystal panel that switches between a transparent state and an opaque state, a first light source, a light guide plate arranged on a back surface of the liquid crystal panel and made of a transparent material, the light guide plate having an incident surface facing the first light source and an outgoing surface facing the back surface of the liquid crystal panel, propagating light emitted from the first light source and incident through the incident surface, and outputting the light toward the liquid crystal panel from the outgoing surface, and a second light source configured to illuminate an object arranged on an opposite side to the liquid crystal panel with the light guide plate interposed therebetween.Type: GrantFiled: July 29, 2015Date of Patent: October 24, 2017Assignee: OMRON CorporationInventors: Norikazu Kitamura, Yoshimasa Osumi, Yasuhiro Tanoue, Yoshihiko Takagi, Norihisa Kanzaki, Masayuki Shinohara, Junya Fujita, Takamitsu Ishikawa, Takeshi Kakinuma, Jun Kishimoto, Masaaki Hiramatsu
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Publication number: 20170285245Abstract: A light guide plate, produced from material transparent to visible light, includes a plurality of prisms provided on one surface (a diffusion surface) thereof in a predetermined pattern. The plurality of prisms include a reflection surface that reflects visible light emitted from a light source and entering the light guide plate from an input surface toward another surface (an output surface). Each prism in the plurality of prisms is distributed so that the reflection surfaces of two prisms separated by a predetermined pitch are oriented in the same direction, and the reflections surfaces of two prisms that are closer than the predetermined pitch are oriented in mutually different directions.Type: ApplicationFiled: October 15, 2015Publication date: October 5, 2017Applicant: OMRON CorporationInventors: Junya FUJITA, Yoshimasa OSUMI, Yoshihiko TAKAGI, Yuji HIROSE
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Patent number: 9753205Abstract: An exit surface of a light guide plate includes a first position from which first emitted light is emitted within an angular range that causes the first emitted light to be applied to one eye and the vicinity thereof and a second position from which second emitted light is emitted within an angular range that causes the second emitted light to be applied to the other eye and the vicinity thereof. A straight line that passes through the first position and the center of the one eye and a straight line that passes through the second position and the center of the other eye intersect with each other.Type: GrantFiled: August 27, 2014Date of Patent: September 5, 2017Assignee: OMRON CorporationInventors: Yoshihiko Takagi, Masayuki Shinohara, Yoshimasa Osumi, Norikazu Kitamura, Junya Fujita
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Publication number: 20170248749Abstract: A light guide plate according to one or more embodiment is formed of a panel transparent to visible light, and includes: a plurality of first prisms arranged along one surface of the light guide plate and distributed in a first pattern to reflect the visible light emitted from a first light source and entering the light guide from an input surface toward another surface of the light guide plate; and a plurality of second prisms arranged in a second pattern to reflect the visible light emitted from a second light source and entering the light guide from the input surface toward said other surface of the light guide plate. Each first prism includes a reflection surface directly facing the first light source, and each second prism includes a reflection surface directly facing the second light source.Type: ApplicationFiled: May 16, 2017Publication date: August 31, 2017Applicant: OMRON CorporationInventors: Junya FUJITA, Yoshimasa OSUMI, Yoshihiko TAKAGI
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Patent number: 9582959Abstract: A reflection structure configured to be disposed on a light guide body that guides a light beam incident from a light source and causes the light beam to exit from a light emitting area set in a light exit surface, having a reflection surface that reflects the light beam emitted from the light source toward the light emitting area. When the reflection structure is viewed from a direction perpendicular to the light exit surface, a pointed end is arranged in a direction orthogonal to a traveling direction of the reflected light beam, and an angle formed between the traveling direction of the reflected light beam and a normal direction of an end edge of the reflection surface connected to the pointed end is less than or equal to ?38.327x2+152.3x?94.014, wherein x is a refractive index of the light guide body.Type: GrantFiled: December 31, 2014Date of Patent: February 28, 2017Assignee: OMRON CorporationInventors: Masayuki Shinohara, Yoshimasa Osumi, Yoshihiko Takagi, Norikazu Kitamura, Takaaki Suzumura, Junya Fujita
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Patent number: 9482804Abstract: A relay has a case, a relay body disposed in the case, a light source disposed in the case that emits light in accordance with an operation of the relay body, a light guide path which that receives, via a first end surface, the light emitted from the light source, and causes the light to exit outward from a second end surface, and a diffusion structure disposed in an optical path of the light which exits from the second end surface of the light guide path.Type: GrantFiled: January 30, 2015Date of Patent: November 1, 2016Assignee: OMRON CorporationInventors: Yuji Hirose, Masayuki Shinohara, Yasuhiro Tanoue, Hiroyuki Miyamoto, Yoshimasa Osumi, Kazuhide Hirota
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Patent number: 9417378Abstract: A light guide including a plurality of reflection patterns in a reflection area in a facing surface facing a light exit surface, which area corresponds to a light emitting area, and the reflection patterns are arranged so that an amount of light reflected by the reflection patterns, emitted from the light emitting area to arrive at an observer observing the light exit surface is continuously changed in accordance with a position in the light emitting area.Type: GrantFiled: August 27, 2014Date of Patent: August 16, 2016Assignee: OMRON CorporationInventors: Yoshihiko Takagi, Masayuki Shinohara, Yoshimasa Osumi, Norikazu Kitamura
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Patent number: 9406468Abstract: A relay in which a relay body and a light source are incorporated in a case, the light source emitting light in conjunction with operation of the relay body, wherein a light guide is provided inside an outer surface of the case, the light guide is configured to take in the light emitted from the light source, to guide the light to a portion parallel to a top panel of the case, and to spread the light in the portion parallel to the top panel, and an optical pattern is provided in at least one of a top surface and a bottom surface of the portion parallel to the top panel, the optical pattern is configured to output, the light guided in the light guide to the portion parallel to the top panel, to outside the case from a top surface of the top panel.Type: GrantFiled: June 23, 2014Date of Patent: August 2, 2016Assignee: OMRON CORPORATIONInventors: Yoshimasa Osumi, Masayuki Shinohara, Hiroyuki Miyamoto, Kazuhide Hirota
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Publication number: 20160054601Abstract: A display device has a liquid crystal panel that switches between a transparent state and an opaque state, a first light source, a light guide plate arranged on a back surface of the liquid crystal panel and made of a transparent material, the light guide plate having an incident surface facing the first light source and an outgoing surface facing the back surface of the liquid crystal panel, propagating light emitted from the first light source and incident through the incident surface, and outputting the light toward the liquid crystal panel from the outgoing surface, and a second light source configured to illuminate an object arranged on an opposite side to the liquid crystal panel with the light guide plate interposed therebetween.Type: ApplicationFiled: July 29, 2015Publication date: February 25, 2016Applicant: OMRON CorporationInventors: Norikazu Kitamura, Yoshimasa Osumi, Yasuhiro Tanoue, Yoshihiko Takagi, Norihisa Kanzaki, Masayuki Shinohara, Junya Fujita, Takamitsu Ishikawa, Takeshi Kakinuma, Jun Kishimoto, Masaaki Hiramatsu
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Publication number: 20150235508Abstract: A reflection structure configured to be disposed on a light guide body that guides a light beam incident from a light source and causes the light beam to exit from a light emitting area set in a light exit surface, having a reflection surface that reflects the light beam emitted from the light source toward the light emitting area. When the reflection structure is viewed from a direction perpendicular to the light exit surface, a pointed end is arranged in a direction orthogonal to a traveling direction of the reflected light beam, and an angle formed between the traveling direction of the reflected light beam and a normal direction of an end edge of the reflection surface connected to the pointed end is less than or equal to ?38.327x2+152.3x?94.014, wherein x is a refractive index of the light guide body.Type: ApplicationFiled: December 31, 2014Publication date: August 20, 2015Inventors: Masayuki Shinohara, Yoshimasa Osumi, Yoshihiko Takagi, Norikazu Kitamura, Takaaki Suzumura, Junya Fujita
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Publication number: 20150234109Abstract: A relay has a case, a relay body disposed in the case, a light source disposed in the case that emits light in accordance with an operation of the relay body, a light guide path which that receives, via a first end surface, the light emitted from the light source, and causes the light to exit outward from a second end surface, and a diffusion structure disposed in an optical path of the light which exits from the second end surface of the light guide path.Type: ApplicationFiled: January 30, 2015Publication date: August 20, 2015Inventors: Yuji Hirose, Masayuki Shinohara, Yasuhiro Tanoue, Hiroyuki Miyamoto, Yoshimasa Osumi, Kazuhide Hirota
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Publication number: 20150185396Abstract: A light guide body configured to guide at least first and second light having different colors that enter the light guide body from at least one light source has a light exit surface having a light emitting region that emits the first light and the second light from the at least one light source, and a reflection region that reflects, toward the light emitting region, the first light and the second light that enters the light guide body. The reflection region has a first pattern region where a plurality of first reflection patterns that reflects the first light are arranged, and a second pattern region where a plurality of second reflection patterns that reflects the second light are arranged. When viewed from a direction perpendicular to the light exit surface, the first pattern region and the second pattern region at least partially overlapping with each other.Type: ApplicationFiled: November 25, 2014Publication date: July 2, 2015Inventors: Yoshihiko Takagi, Yoshimasa Osumi, Norikazu Kitamura, Masayuki Shinohara
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Publication number: 20150168627Abstract: A light guide body configured to guide light that enters therein has a light exit surface through which light from the at least one light source exits, and a plurality of linearly arranged pattern groups, each of which has a plurality of linearly arranged reflection patterns that reflect the light from the at least one light source toward the light exit surface. At least one of the plurality of linearly arranged pattern groups differs from at least another of the plurality of linearly arranged pattern groups in light amount difference. The light amount difference is a difference between an amount of light which reaches an observer of the light exit surface after being reflected by each of the plurality of linearly arranged pattern groups and an amount of light which reaches the observer through a region which is adjacent to each of the plurality of linearly arranged pattern groups.Type: ApplicationFiled: November 24, 2014Publication date: June 18, 2015Inventors: Yoshihiko Takagi, Masayuki Shinohara, Yoshimasa Osumi, Norikazu Kitamura
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Publication number: 20150131316Abstract: A light guide body configured to guide light from a light source that enters the light guide body has a light exit surface having at least one light emitting region from which light from the light source is emitted, and a plurality of reflection patterns arranged in a reflection region of a counter surface facing the light exit surface. The reflection region is a region corresponding to the at least one light emitting region. The reflection region has at least a first reflection region that reflects light in a first direction, and a second reflection region that reflects light in a second direction differing from the first direction.Type: ApplicationFiled: October 30, 2014Publication date: May 14, 2015Inventors: Yoshihiko Takagi, Masayuki Shinohara, Yoshimasa Osumi, Norikazu Kitamura
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Publication number: 20150116834Abstract: On a surface of a film base material (22), an antireflection structure configured by nano-sized optical projections (23) to suppress reflection of light and protective pillars (24) to prevent the optical projections (23) from being flattened out are arranged. The protective pillar (24) has a truncated cone shape. When a diameter of the protective pillar (24) at a proximal end thereof, a height of the protective pillar (24), and an angle between a side surface of the protective pillar (24) and a central axis of the protective pillar (24) on a section passing through the central axis of the protective pillar (24) are given by D, H, and ?, respectively, these values satisfy a relationship: D>2H×tan(2?).Type: ApplicationFiled: March 12, 2013Publication date: April 30, 2015Applicant: Soken Chemical & Engineering Co., Ltd.Inventors: Yoshimasa Osumi, Takehiko Nakagawa, Tetsuya Minobe, Yuki Yamamoto, Yoshinori Ito, Yoshihiko Takagi
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Publication number: 20150092441Abstract: An exit surface of a light guide plate includes a first position from which first emitted light is emitted within an angular range that causes the first emitted light to be applied to one eye and the vicinity thereof and a second position from which second emitted light is emitted within an angular range that causes the second emitted light to be applied to the other eye and the vicinity thereof. A straight line that passes through the first position and the center of the one eye and a straight line that passes through the second position and the center of the other eye intersect with each other.Type: ApplicationFiled: August 27, 2014Publication date: April 2, 2015Inventors: Yoshihiko Takagi, Masayuki Shinohara, Yoshimasa Osumi, Norikazu Kitamura, Junya Fujita
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Publication number: 20150092444Abstract: A light guide including a plurality of reflection patterns in a reflection area in a facing surface facing a light exit surface, which area corresponds to a light emitting area, and the reflection patterns are arranged so that an amount of light reflected by the reflection patterns, emitted from the light emitting area to arrive at an observer observing the light exit surface is continuously changed in accordance with a position in the light emitting area.Type: ApplicationFiled: August 27, 2014Publication date: April 2, 2015Inventors: Yoshihiko Takagi, Masayuki Shinohara, Yoshimasa Osumi, Norikazu Kitamura
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Patent number: D763200Type: GrantFiled: September 2, 2014Date of Patent: August 9, 2016Assignee: OMRON CORPORATIONInventors: Yuji Hirose, Masayuki Shinohara, Yasuhiro Tanoue, Hiroyuki Miyamoto, Yoshimasa Osumi, Kazuhide Hirota
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Patent number: D772819Type: GrantFiled: August 29, 2014Date of Patent: November 29, 2016Assignee: OMRON CORPORATIONInventors: Yuji Hirose, Masayuki Shinohara, Yasuhiro Tanoue, Hiroyuki Miyamoto, Yoshimasa Osumi, Kazuhide Hirota