Patents by Inventor Hidemi Matsuda
Hidemi Matsuda 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: 20170029297Abstract: According to one embodiment, an electrolytic apparatus includes an electrolytic cell including a cathode chamber, an intermediate chamber, and an anode chamber, a supply portion which supplies an electrolyte solution to the intermediate chamber, a drain pipe which discharges the electrolyte solution from the intermediate chamber, and a valve in the drain pipe. The supply portion includes a pressure apply portion which applies hydrostatic pressure to the electrolyte solution in the intermediate chamber made static, and which includes a supply pipe, a pump in the supply pipe, and a circulation pipe configured to circulate a part of the electrolyte solution fed from the pump.Type: ApplicationFiled: September 15, 2016Publication date: February 2, 2017Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Masahiro YOKOTA, Hideo OOTA, Hisashi CHIGUSA, Hidemi MATSUDA
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Publication number: 20160215402Abstract: According to one embodiment, an electrolytic apparatus includes a diaphragm of a porous membrane having a water permeability of 0.0024 to 0.6 mL/min per cm2 at a differential pressure of 20 kPa, a first electrode provided to oppose the diaphragm, and a second electrode opposing the first electrode via the diaphragm, and the difference between the hydraulic pressures applied onto both sides of the porous membrane is within ±20 kPa.Type: ApplicationFiled: March 1, 2016Publication date: July 28, 2016Inventors: Ken TAKAHASHI, Masahiro YOKOTA, Katsuyuki NAITO, Hideo OOTA, Shusuke MORITA, Hidemi MATSUDA, Hisashi CHIGUSA, Wu MEI, Norihiro YOSHINAGA, Norihiro TOMIMATSU, Ryosuke YAGI
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Publication number: 20160200573Abstract: According to one embodiment, an electrolytic water generator includes a plurality of electrolytic cells configured to generate electrolytic water by energizing a pair of electrodes arranged in water to be electrolyzed. An inflow unit is configured to let the water to be electrolyzed flow in parallel. An inflow disconnecting unit is configured to individually disconnect the water to be electrolyzed flowing in parallel is provided in the inflow unit. An electrode disconnecting unit is configured to individually disconnect between the pair of electrodes is provided. Power is supplied with a constant current from a power source by connecting the pair of electrodes of the plurality of electrolytic cells in series through the electrode disconnecting unit.Type: ApplicationFiled: March 1, 2016Publication date: July 14, 2016Inventors: Masahiro YOKOTA, Hideo OOTA, Masaru NIKAIDO, Hidemi MATSUDA
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Patent number: 9388956Abstract: According to one embodiment, a lighting device includes a light source, and at least one light distribution control member configured to control distribution of light from the light source. The light distribution control member includes a base member higher in refractive index than air, and two optical control layers located opposite each other with a predetermined space therebetween on either side of the base member. The two optical control layers each includes a first region and a second region formed in correlative patterns. The light distribution control member is configured to control the light distribution based on a change of an overlap between the first and second regions depending on a direction of transmitted light.Type: GrantFiled: December 12, 2013Date of Patent: July 12, 2016Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Ken Takahashi, Osamu Ono, Shusuke Morita, Masahiro Yokota, Nobuo Kawamura, Takeshi Ookawa, Hidemi Matsuda, Hideo Oota, Takashi Nishimura
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Publication number: 20160194770Abstract: According to one embodiment, an electrolytic apparatus includes an electrolytic cell including an anode chamber, an intermediate chamber, a cathode chamber, separating membranes, an anode in the anode chamber, and a cathode in the cathode chamber, a water supply portion which supplies water to the anode and cathode chambers and intermittently changes a water supply and discharge amount, an electrolyte fluid supply portion which supplies and discharges an electrolyte fluid to the intermediate chamber, and a controller which applies potential to the anode and the cathode and electrolyzes the electrolyte fluid in a state where the water supply and discharge amount is small or in a water static state in at least one of the anode and the cathode chambers.Type: ApplicationFiled: March 11, 2016Publication date: July 7, 2016Applicant: Kabushiki Kaisha ToshibaInventors: Masahiro YOKOTA, Hideo OOTA, Hisashi CHIGUSA, Hidemi MATSUDA
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Patent number: 8905598Abstract: According to one embodiment, a lighting device includes a base member, a light source on the base member, a light-transmitting cover configured to cover the light source and to emit light emitted from the light source to the outside, and a light guide body provided opposite the light source and configured to guide, to the rear of the light source, at least part of the light from the light source. The cover includes a back light-transmitting region having a plane-normal line directed rearwardly. The light guide body includes a light-incident portion facing the light source and a light guide-emitting portion curvedly extending outward from the light-incident portion, having a distal end portion extending along the back light-transmitting region and directed to the rear.Type: GrantFiled: September 11, 2013Date of Patent: December 9, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Masahiro Yokota, Osamu Ono, Ken Takahashi, Shusuke Morita, Nobuo Kawamura, Takeshi Ookawa, Hideo Oota, Hidemi Matsuda, Takashi Nishimura
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Publication number: 20140097738Abstract: According to one embodiment, a lighting device includes a light source with a directivity and a light-transmitting cover including a light-transmitting area configured to emit light from the light source to the outside. The light-transmitting cover is in a dome shape and formed of a material doped with scattered fillers dispersed in a volume thereof. The light-transmitting cover includes a vertically elongated shape with an aspect ratio higher than 0.6, and having a transmittance of 70% or less. The aspect ratio is the quotient of a height of the light-transmitting area in an optical axis thereof divided by the width of a rear-end portion of the light-transmitting area.Type: ApplicationFiled: December 11, 2013Publication date: April 10, 2014Applicant: Kabushiki Kaisha ToshibaInventors: Shusuke MORITA, Masahiro Yokota, Osamu Ono, Takeshi Ookawa, Ken Takahashi, Nobuo Kawamura, Hideo Oota, Hidemi Matsuda, Takashi Nishimura
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Publication number: 20140098546Abstract: According to one embodiment, a lighting device includes a light source, and at least one light distribution control member configured to control distribution of light from the light source. The light distribution control member includes a base member higher in refractive index than air, and two optical control layers located opposite each other with a predetermined space therebetween on either side of the base member. The two optical control layers each includes a first region and a second region formed in correlative patterns. The light distribution control member is configured to control the light distribution based on a change of an overlap between the first and second regions depending on a direction of transmitted light.Type: ApplicationFiled: December 12, 2013Publication date: April 10, 2014Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Ken Takahashi, Osamu Ono, Shusuke Morita, Masahiro Yokota, Nobuo Kawamura, Takeshi Ookawa, Hidemi Matsuda, Hideo Oota, Takashi Nishimura
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Patent number: 8681289Abstract: According to one embodiment, a lighting device includes a radiation surface, at least one light source provided to face the radiation surface, and an optical control member provided between the radiation surface and the light source and includes optical characteristics of transmission, diffraction, diffusion, and reflection, which vary for regions in the optical control member, a distribution of each of the optical characteristics being determined by positions relative to the at least one light source. The optical control member is formed in a sheet shape which is controlled by at least one of a reflective film having a reflection factor distribution, and a reflective film having a numerical aperture distribution, and lenses.Type: GrantFiled: September 14, 2012Date of Patent: March 25, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Ken Takahashi, Osamu Ono, Hidemi Matsuda, Nobuo Kawamura, Shusuke Morita, Masahiro Yokota, Takashi Nishimura
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Publication number: 20140043828Abstract: According to one embodiment, a lighting device includes a base member, a light source on the base member, a light-transmitting cover configured to cover the light source and to emit light emitted from the light source to the outside, and a light guide body provided opposite the light source and configured to guide, to the rear of the light source, at least part of the light from the light source. The cover includes a back light-transmitting region having a plane-normal line directed rearwardly. The light guide body includes a light-incident portion facing the light source and a light guide-emitting portion curvedly extending outward from the light-incident portion, having a distal end portion extending along the back light-transmitting region and directed to the rear.Type: ApplicationFiled: September 11, 2013Publication date: February 13, 2014Applicant: Kabushiki Kaisha ToshibaInventors: Masahiro YOKOTA, Osamu ONO, Ken TAKAHASHI, Shusuke MORITA, Nobuo KAWAMURA, Takeshi Ookawa, Hideo OOTA, Hidemi MATSUDA, Takashi NISHIMURA
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Publication number: 20130335966Abstract: According to one embodiment, a lightning device includes a base member, a light source on the base member, a light guide body configured to guide at least part of light forwardly emitted from the light source. The light guide body includes an incident portion covering the front of at least the part of the light source, a bent light guide portion outwardly bent from the incident portion and configured to curvedly guide incident main light to the outside, and a light-emitting surface located on the distal end of the bent light guide portion, directly exposed to the outside of the device, and configured to emit the curvedly guided light laterally or rearwardly relative to the light source.Type: ApplicationFiled: August 21, 2013Publication date: December 19, 2013Applicant: Kabushiki Kaisha ToshibaInventors: Masahiro YOKOTA, Osamu Ono, Ken Takahashi, Shusuke Morita, Nobuo Kawamura, Takeshi Ookawa, Hideo Oota, Hidemi Matsuda, Takashi Nishimura
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Publication number: 20130010232Abstract: According to one embodiment, a lighting device includes a radiation surface, at least one light source provided to face the radiation surface, and an optical control member provided between the radiation surface and the light source and includes optical characteristics of transmission, diffraction, diffusion, and reflection, which vary for regions in the optical control member, a distribution of each of the optical characteristics being determined by positions relative to the at least one light source. The optical control member is formed in a sheet shape which is controlled by at least one of a reflective film having a reflection factor distribution, and a reflective film having a numerical aperture distribution, and lenses.Type: ApplicationFiled: September 14, 2012Publication date: January 10, 2013Inventors: Ken TAKAHASHI, Osamu ONO, Hidemi MATSUDA, Nobuo KAWAMURA, Shusuke MORITA, Masahiro YOKOTA, Takashi NISHIMURA
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Publication number: 20120327330Abstract: According to one embodiment, a lighting device includes a light source, and a semi-transmissive reflection layer opposing the light source. The semi-transmissive reflection layer includes a pattern including transmitting portions or reflecting portions. The pattern includes a pattern formed of the transmitting portions each having a hole conformation in a region to which a high volume of light form the light source incident, and a pattern formed of the reflection portions each having a dot conformation in a region to which a low volume of light form the light source incident.Type: ApplicationFiled: August 31, 2012Publication date: December 27, 2012Inventors: Ken TAKAHASHI, Osamu Ono, Hidemi Matsuda, Masahiro Yokota, Shusuke Morita, Nobuo Kawamura, Takeshi Ookawa, Takashi Nishimura
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Publication number: 20120134161Abstract: According to one embodiment, an lighting apparatus includes a base member, a light source configured to emit visible light, and a translucent cover including a translucent region which covers at least a front surface of the light source and emits the light emitted from the light source to the outside. The light source is provided on a front surface flat section of the base member, a luminous intensity of the light emitted from the light source has a directionality which is strong in a normal direction of the front surface flat section and becomes zero on a rear surface side. The translucent cover includes a domed shape having a maximum diameter at a position higher than a height of the position where the light source is arranged, and a transmittance of a region opposing the light source is 60% or less.Type: ApplicationFiled: September 13, 2011Publication date: May 31, 2012Inventors: Nobuo Kawamura, Masahiro Yokota, Osamu Ono, Ken Takahashi, Takeshi Ookawa, Shusuke Morita, Takashi Nishimura, Hidemi Matsuda
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Publication number: 20110317096Abstract: According to one embodiment, a planar lighting device includes a plurality of light sources, a light guide layer provided on a light-emission side of the light sources and configured to guide light from the light sources, and a reflective layer provided on an opposite side of the light guide layer to the light sources and through which a part of the light is transmitted. The light guide layer includes light-scattering properties for scattering light and is formed so that optical transmittance T based on the light-scattering properties is 40%?T?93%.Type: ApplicationFiled: September 6, 2011Publication date: December 29, 2011Inventors: Masahiro Yokota, Ken Takahashi, Osamu Ono, Hidemi Matsuda, Toshitake Kitagawa, Takashi Nishimura
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Patent number: 7329981Abstract: An optical filter applied to a display apparatus, disposes on a substrate with transparency and has a maximum absorption wavelength ? in a wavelength range of 575±20 nm in connection with a wavelength range from 450 to 650 nm. The optical filter satisfies a relationship, 0.65?T1(?)/T2(?)?0.90 where T1 (?) is a transmittance at a central part of the substrate at the maximum absorption wavelength ?, and T2 (?) is a transmittance at a peripheral part of the substrate at the maximum absorption wavelength ?. The optical filter also satisfies a relationship, 0.90?(T1 (?1)/T2 (?1))/(T1 (?)/T2 (?))?1.05 with respect to transmittances wherein ?1 is each wavelength 450 nm, 530 nm and 630 nm, and ? is the maximum absorption wavelength.Type: GrantFiled: April 7, 2005Date of Patent: February 12, 2008Assignee: Kabushiki Kaisha ToshibaInventors: Norihisa Nakao, Daiki Takahashi, Hiroyoshi Fukasawa, Hidemi Matsuda
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Patent number: 7227302Abstract: Optical filter layers that transmit only light with a desired wavelength are provided in a non-formation region of an optical absorbing layer formed on an inner surface of a glass panel, and phosphor layers that emit either one of red, green, and blue light are provided on the optical filter layers. The optical filter layers transmit blue light. Assuming that the thickness of the optical filter layer underlying the phosphor layer that emits blue light is t1, and the thickness of the optical filter layers underlying the phosphor layers that emit red and green light is t2, a relationship: t1>t2 is satisfied. Because of the above configuration, a color cathode-ray tube is provided, which can be produced at low cost with satisfactory yield with less peeling of a phosphor layer.Type: GrantFiled: September 21, 2005Date of Patent: June 5, 2007Assignee: Matsushita Toshiba Picture Display Co., Ltd.Inventors: Keisuke Iida, Hidemi Matsuda
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Patent number: 7202594Abstract: A display device which includes, a display panel, a red emitting fluorescent film, a green emitting fluorescent film, and a blue emitting fluorescent film, each of the fluorescent films being formed on an inner surface of the display panel. The red emitting fluorescent film contains red fluorescent particles having an average particle diameter ranging from 6 to 12 ?m and covered with red pigment having an average particle diameter ranging from 1/100 to 1/10 of the average particle diameter of the red fluorescent particles, the red emitting fluorescent particles are formed of Y2O2S:Eu, a concentration of Eu in the red emitting fluorescent film is 60 ppm or less, and the x-value of luminescent chromaticity of the red emitting fluorescent film is not less than 0.620.Type: GrantFiled: June 23, 2005Date of Patent: April 10, 2007Assignee: Kabushiki Kaisha ToshibaInventors: Hisashi Chigusa, Keisuke Iida, Hidemi Matsuda
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Publication number: 20060138664Abstract: An electron source device includes a porous layer (for example, porous alumina layer) which is composed of an insulator and has many microscopic holes provided in a direction perpendicular to a main surface, and first and second conductor layers placed on both sides of the porous layer, and is characterized in that the current density I/S is 1 ?A/cm2 or higher when a direct-current voltage is applied between the second conductor layer and the fist conductor layer while using the second conductor layer as an anode. In this case, S represents the overlapping area of the first conductor layer, the second conductor layer and the porous layer. Consequently, an electron source device having a high electron emission ability and a long life even when the degree of vacuum is low can be obtained at low cost, and hence, a display having a high luminous efficiency and high reliability can be realized.Type: ApplicationFiled: November 25, 2003Publication date: June 29, 2006Applicants: Kabushiki Kaisha Toshiba, Fuji Pigment Co., Ltd.Inventors: Takeo Ito, Hidemi Matsuda, Masaaki Inamura, Hajime Tanaka, Kazuo Sakai
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Publication number: 20060061251Abstract: Optical filter layers that transmit only light with a desired wavelength are provided in a non-formation region of an optical absorbing layer formed on an inner surface of a glass panel, and phosphor layers that emit either one of red, green, and blue light are provided on the optical filter layers. The optical filter layers transmit blue light. Assuming that the thickness of the optical filter layer underlying the phosphor layer that emits blue light is t1, and the thickness of the optical filter layers underlying the phosphor layers that emit red and green light is t2, a relationship: t1>t2 is satisfied. Because of the above configuration, a color cathode-ray tube is provided, which can be produced at low cost with satisfactory yield with less peeling of a phosphor layer.Type: ApplicationFiled: September 21, 2005Publication date: March 23, 2006Applicant: Matsushita Toshiba Picture Display Co., Ltd.Inventors: Keisuke Iida, Hidemi Matsuda