Patents by Inventor Masaru Fujita
Masaru Fujita 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: 20170122528Abstract: An illumination apparatus includes a light-emitting element, a first lens, and a second lens. The first lens faces the light-emitting element, and has a radiation port from which a light beam is radiated, a first incident surface, a second incident surface, a first reflection surface, and a second reflection surface. The second lens faces the radiation port. The first incident surface faces the light-emitting element, and guides a light beam from the light-emitting element to the radiation port. The second incident surface guides a light beam not passing through the first incident surface to a direction toward the outer periphery of the first lens. The first reflection surface reflects a light beam from the second incident surface to guide the light beam to the radiation port.Type: ApplicationFiled: May 25, 2015Publication date: May 4, 2017Inventors: SHINJI KADORIKU, RYOMA MURASE, TAKASHI MATSUDA, MASARU FUJITA
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Patent number: 9594204Abstract: A light guide plate which guides light from light sources at both ends and reflection surface grooves having plural types of reflection surfaces formed on a reverse side of the light guide plate are provided in a direction perpendicular to a front direction of a suction tool, thereby forming light rays radiating to a floor surface from three directions and lighting the floor surface as the surface to be cleaned in front of the suction tool over a wide range.Type: GrantFiled: October 23, 2015Date of Patent: March 14, 2017Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Tomohisa Sakaguchi, Masaru Fujita
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Publication number: 20160209575Abstract: An indication lighting device provided is capable of reducing the number of electric wiring from a fixed, part to a moving part when an indication part is provided in the moving part's side. The indication lighting device makes indication by emitting light from a light source arranged in a fixed part to an optical waveguide arranged in a moving part, reflecting the light incident on the optical waveguide by reflection surfaces of prisms of the optical waveguide to an indication part provided in a tip side of the optical waveguide to be propagated, and emitting the light propagated inside the optical waveguide through the indication part.Type: ApplicationFiled: October 16, 2015Publication date: July 21, 2016Inventors: ATSUSHI FUKUI, MASARU FUJITA, TOMOHISA SAKAGUCHI
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Publication number: 20160131818Abstract: A light guide plate which guides light from light sources at both ends and reflection surface grooves having plural types of reflection surfaces formed on a reverse side of the light guide plate are provided in a direction perpendicular to a front direction of a suction tool, thereby forming light rays radiating to a floor surface from three directions and lighting the floor surface as the surface to be cleaned in front of the suction tool over a wide range.Type: ApplicationFiled: October 23, 2015Publication date: May 12, 2016Inventors: TOMOHISA SAKAGUCHI, MASARU FUJITA
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Publication number: 20160018081Abstract: An illumination device has plural LED light sources, a reflection plate that has plural openings facing the respective LED light sources, and plural lenses that faces the respective openings and that guides light emitted from the plural openings in a direction vertical to the openings. The reflection plate is placed between the plural LED light sources and the plural lenses, and converges the light emitted from the plural LED light sources.Type: ApplicationFiled: October 24, 2014Publication date: January 21, 2016Inventors: SHINJI KADORIKU, RYOMA MURASE, MASARU FUJITA
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Patent number: 9229151Abstract: Provided a light guide (11) including side surfaces on which light is incident, a reflection prism surface having plural prisms (12) on which light is reflected, and a light emitting surface from which the light is emitted, in which the reflection prism surface includes a first region (PA) in which a pitch of the prisms (12) varies and a second region (TA) in which a depth of the prisms (12) varies. In the light guide (11), the first region is arranged in the side surface on which the light is incident, and a second region (TA) is arranged adjacent to the first region and in an inward side of the light guide (11).Type: GrantFiled: April 26, 2013Date of Patent: January 5, 2016Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Masaru Fujita, Shohroh Mochida, Yoshihiko Kanayama, Yusuke Kusaka, Masami Ito, Takanori Kikuchi
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Publication number: 20150293296Abstract: A light source device including a light guide plate and a light source, in which the light guide plate includes an incident surface on which light emitted from the light source is incident, an emission surface emitting light incident from the incident surface, and a propagating reflection surface which is a surface opposite to the emission surface and which propagates and reflects the light incident from the incident surface toward the emission surface, the propagating reflection surface has approximately V-shaped grooves and the V-shaped grooves have two kinds of grooves.Type: ApplicationFiled: November 8, 2013Publication date: October 15, 2015Inventors: Takanori Kikuchi, Yusuke Kusaka, Masaru Fujita, Yoshihiko Kanayama, Shohroh Mochida, Masami Ito
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Patent number: 9028125Abstract: A light guide plate includes an incident surface on which light outputted from point light sources is incident and an outgoing surface for outputting light incident from the incident surface. A reflection-and-propagation surface for reflecting light toward the outgoing surface is formed in a back surface opposite to the outgoing surface. The outgoing surface is made up of a propagation region adjacent to the incident surface, a propagation auxiliary region adjacent to the propagation region, a first diffusion-and-propagation region adjacent to the propagation auxiliary region, and a second diffusion-and-propagation region adjacent to the first diffusion-and-propagation region. The propagation region, the propagation auxiliary region, and the first diffusion-and-propagation region control hot spots and bright/dark lines in vicinities of the incident surface, while the second diffusion-and-propagation region controls viewing-angle characteristics of the light guide plate.Type: GrantFiled: July 3, 2012Date of Patent: May 12, 2015Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Takanori Kikuchi, Masami Ito, Masaru Fujita, Yusuke Kusaka
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Publication number: 20150085530Abstract: Provided a light guide (11) including side surfaces on which light is incident, a reflection prism surface having plural prisms (12) on which light is reflected, and a light emitting surface from which the light is emitted, in which the reflection prism surface includes a first region (PA) in which a pitch of the prisms (12) varies and a second region (TA) in which a depth of the prisms (12) varies. In the light guide (11), the first region is arranged in the side surface on which the light is incident, and a second region (TA) is arranged adjacent to the first region and in an inward side of the light guide (11).Type: ApplicationFiled: April 26, 2013Publication date: March 26, 2015Inventors: Masaru Fujita, SHOHROH Mochida, Yoshihiko Kanayama, Yusuke Kusaka, Masami Ito, Takanori Kikuchi
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Patent number: 8979351Abstract: A light guide plate having a first surface and a second surface opposite the first surface receives light in a first direction parallel with the second surface and emits the light towards the first surface in a third direction perpendicular to the first surface. The light guide plate includes a light receiving portion which receives the light; a light guiding path which guides the light in the first direction; and an emitting portion which emits the light by reflecting the guided light towards the first surface in the third direction. The emitting portion includes a plurality of V-shaped grooves extending on the second surface in a second direction crossing the first direction. Each V-shaped groove extends in the first direction and is formed so as to be deepest in the center in the second direction and become shallower as a distance from the center increases.Type: GrantFiled: August 21, 2012Date of Patent: March 17, 2015Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Masaru Fujita, Masami Ito, Takanori Kikuchi, Yusuke Kusaka
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Patent number: 8882326Abstract: A light guide plate includes an incident surface on which light outputted from point light sources is incident and an outgoing surface for outputting light incident from the incident surface, wherein a reflection-and-propagation surface for reflecting light toward the outgoing surface is formed in a back surface opposite to the outgoing surface. The outgoing surface is made up of a propagation region adjacent to the incident surface, a diffusion-and-propagation auxiliary region adjacent to the propagation region, and a diffusion-and-propagation region adjacent to the diffusion-and-propagation auxiliary region. Hot spots and bright/dark lines in vicinities of the incident surface are controlled primarily by curved portions of prism upper ends formed in the diffusion-and-propagation region, and viewing-angle characteristics of the light guide plate are controlled primarily by linear portions of the prisms.Type: GrantFiled: June 25, 2013Date of Patent: November 11, 2014Assignee: Panasonic CorporationInventors: Takanori Kikuchi, Masami Ito, Masaru Fujita, Yusuke Kusaka
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Publication number: 20130343082Abstract: A light guide plate includes an incident surface on which light outputted from point light sources is incident and an outgoing surface for outputting light incident from the incident surface, wherein a reflection-and-propagation surface for reflecting light toward the outgoing surface is formed in a back surface opposite to the outgoing surface. The outgoing surface is made up of a propagation region adjacent to the incident surface, a diffusion-and-propagation auxiliary region adjacent to the propagation region, and a diffusion-and-propagation region adjacent to the diffusion-and-propagation auxiliary region. Hot spots and bright/dark lines in vicinities of the incident surface are controlled primarily by curved portions of prism upper ends formed in the diffusion-and-propagation region, and viewing-angle characteristics of the light guide plate are controlled primarily by linear portions of the prisms.Type: ApplicationFiled: June 25, 2013Publication date: December 26, 2013Inventors: Takanori KIKUCHI, Masami ITO, Masaru FUJITA, Yusuke KUSAKA
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CONDUCTIVE BINDER COMPOSITION, METAL WIRE WITH CONDUCTIVE BINDER, BONDED UNIT, AND SOLAR CELL MODULE
Publication number: 20130333744Abstract: Provided is a conductive adhesive composition including: conductive particles (A) containing metal having a melting point of equal to or lower than 210° C.; a resin (B) having a softening point of equal to or lower than the melting point of the metal of the conductive particles and being solid at a room temperature; a flux activator (C); and a solvent (D).Type: ApplicationFiled: January 11, 2012Publication date: December 19, 2013Applicant: HITACHI CHEMICAL COMPANY, LTD.Inventors: Seigo Yokochi, Masaru Fujita, Hiroki Hayashi -
Publication number: 20130170250Abstract: A light guide plate includes an incident surface on which light outputted from point light sources is incident and an outgoing surface for outputting light incident from the incident surface. A reflection-and-propagation surface for reflecting light toward the outgoing surface is formed in a back surface opposite to the outgoing surface. The outgoing surface is made up of a propagation region adjacent to the incident surface, a propagation auxiliary region adjacent to the propagation region, a first diffusion-and-propagation region adjacent to the propagation auxiliary region, and a second diffusion-and-propagation region adjacent to the first diffusion-and-propagation region. The propagation region, the propagation auxiliary region, and the first diffusion-and-propagation region control hot spots and bright/dark lines in vicinities of the incident surface, while the second diffusion-and-propagation region controls viewing-angle characteristics of the light guide plate.Type: ApplicationFiled: July 3, 2012Publication date: July 4, 2013Inventors: Takanori Kikuchi, Masami Ito, Masaru Fujita, Yusuke Kusaka
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Patent number: 8414078Abstract: In the head rest apparatus, a core member is separately formed from a metal plate and a metal stay, wherein a fixing member is integrally formed on a first divided body of the core member and the fixing member mechanically engages the flat plate portion of the metal plate with the first divided body and fixes the flat plate portion to the first divided body. The flat plate position is tightly fixed to the first divided body. Since the stress can be absorbed only by the first divided body, generation of abnormal noise can be prevented without using any damper member and in addition, rattling in operation can be prevented as well.Type: GrantFiled: November 2, 2009Date of Patent: April 9, 2013Assignee: Tokai Chemical Industries, Ltd.Inventor: Masaru Fujita
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Publication number: 20130051075Abstract: A light guide plate having a first surface and a second surface opposite the first surface receives the light in a first direction parallel with the second surface and emits the light towards the first surface in a third direction perpendicular to the first surface, the light guide plate including: a light receiving portion which receives the light; a light guiding path which guides the light in the first direction; and an emitting portion which emits the light by reflecting the guided light towards the first surface in the third direction. The emitting portion is a first V-shaped groove having a V-shaped cross-section extending on the second surface in a second direction crossing the first direction. The first V-shaped groove is provided in plurality in the first direction and formed to be deepest in the center in the second direction and become shallower as distance increases from the center.Type: ApplicationFiled: August 21, 2012Publication date: February 28, 2013Inventors: Masaru FUJITA, Masami ITO, Takanori KIKUCHI, Yusuke KUSAKA
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Patent number: 7874214Abstract: A vibration state detecting method at a machining stage of a work and/or tool, includes the steps of mounting the work and/or tool on a predetermined rotational device and measuring a deviation size and/or deviation average speed corresponding to each rotational number of the work and/or tool; presetting the deviation size and/or the deviation average speed measured by using the rotational device, a vibration amplitude and/or vibration average speed when each machine tool having a work and/or tool mounted thereon is rotated, with a common unbalance amount and at a rotational speed, and proportional fixed number of both thereof; and calculating a vibration amplitude and/or vibration average speed corresponding to each number of rotations when the work and/or tool is mounted on each machine tool by using a measurement value of the deviation size and/or deviation average speed of using rotational device, and the proportional fixed number.Type: GrantFiled: January 15, 2008Date of Patent: January 25, 2011Assignee: Matsuura Machinery CorporationInventors: Hiroshi Arakawa, Kouichi Amaya, Masaru Fujita
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Publication number: 20100283307Abstract: In the head rest apparatus, a core member is separately formed from a metal plate and a metal stay, wherein a fixing member is integrally formed on a first divided body of the core member and the fixing member mechanically engages the flat plate portion of the metal plate with the first divided body and fixes the flat plate portion to the first divided body. The flat plate position is tightly fixed to the first divided body. Since the stress can be absorbed only by the first divided body, generation of abnormal noise can be prevented without using any damper member and in addition, rattling in operation can be prevented as well.Type: ApplicationFiled: November 2, 2009Publication date: November 11, 2010Applicant: TOKAI CHEMICAL INDUSTRIES, LTD.Inventor: Masaru Fujita
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Publication number: 20080271530Abstract: A vibration state detecting method at a machining stage of a work and/or tool, includes the steps of mounting the work and/or tool on a predetermined rotational device and measuring a deviation size and/or deviation average speed corresponding to each rotational number of the work and/or tool; presetting the deviation size and/or the deviation average speed measured by using the rotational device, a vibration amplitude and/or vibration average speed when each machine tool having a work and/or tool mounted thereon is rotated, with a common unbalance amount and at a rotational speed, and proportional fixed number of both thereof; and calculating a vibration amplitude and/or vibration average speed corresponding to each number of rotations when the work and/or tool is mounted on each machine tool by using a measurement value of the deviation size and/or deviation average speed of using rotational device, and the proportional fixed number.Type: ApplicationFiled: January 15, 2008Publication date: November 6, 2008Applicant: MATSUURA MACHINERY CORPORATIONInventors: Hiroshi Arakawa, Kouichi Amaya, Masaru Fujita
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Patent number: 7359024Abstract: A liquid crystal display device includes first and second substrates with a liquid crystal layer therebetween, and a transparent conductor which is formed at a liquid crystal side of at least one of the first and the second substrates. At least a projected portion is formed on the transparent conductor in a pixel region, and a material of the projected portion is different from a material of the transparent conductor.Type: GrantFiled: February 9, 2005Date of Patent: April 15, 2008Assignees: Hitachi, Ltd., Hitachi Device Engineering Co., Ltd.Inventors: Masumi Sasuga, Junichi Ohwada, Akira Kobayashi, Masaru Fujita, Hiroshi Nakamoto, Ryu Ono, Tsutomu Isono