Patents by Inventor Shigehisa Kawatsuru
Shigehisa Kawatsuru 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: 8878439Abstract: According to one embodiment, a lighting control system includes a plurality of luminaire, a sensor device, a luminance sensor, and a lighting control unit. The luminaires are set in a lighting space. The sensor device detects presence of a person in the lighting space. The luminance sensor detects indirect luminance in a predetermined position in the lighting space by the luminaire. The lighting control unit subjects the luminaire to lighting control such that the indirect luminance detected by the luminance sensor does not fall below a predetermined value in a position where the sensor device detects presence of the person.Type: GrantFiled: November 29, 2012Date of Patent: November 4, 2014Assignee: Toshiba Lighting & Technology CorporationInventors: Yoko Noguchi, Tomoko Ishiwata, Makoto Kawagoe, Takayuki Ono, Kenji Takahashi, Hidenori Nishigaki, Junko Takahashi, Shigehisa Kawatsuru, Hitoshi Kawano, Fumie Iwata
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Publication number: 20140300277Abstract: Plural luminaires are installed in a lighting space surrounded by a wall part. A sensor equipment detects existence or nonexistence of a person in the lighting space. If existence of a person in the lighting space is detected, the sensor equipment detects a direction of the person. The sensor equipment detects a distance between the wall part positioned in front of the direction of the person and the person. A lighting control unit selectively switches between a first control for performing lighting control of the luminaires to illuminate the wall part positioned in front of the direction of the person if the detected distance is a specified distance or less, and a second control for performing lighting control of the luminaires to reduce brightness at a place as the place becomes farther from a position of the person if the detected distance is larger than the specified distance.Type: ApplicationFiled: April 1, 2014Publication date: October 9, 2014Applicant: TOSHIBA LIGHTING AND TECHNOLOGY CORPORATIONInventors: Takayuki ONO, Tomoko ISHIWATA, Yoko NOGUCHI, Makoto KAWAGOE, Kenji TAKAHASHI, Hidenori NISHIGAKI, Junko TAKAHASHI, Shigehisa KAWATSURU, Hitoshi KAWANO, Fumie IWATA, Katsusuke UCHINO
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Patent number: 8746919Abstract: According to one embodiment, a luminaire is provided which can enhance the feeling of brightness of a space and can reduce glare. The luminaire includes an equipment mounted on a ceiling surface. The equipment includes a light source and a light control unit. When an amount of light emitted outside from the equipment is an equipment luminous flux, and a direction right under the equipment has a luminous intensity distribution angle of 0°, the light control unit controls to cause a luminous flux falling within a range of a luminous intensity distribution angle of 90° to 120° to be 20% or more of the equipment luminous flux and to cause a luminous flux falling within a range of a luminous intensity distribution angle of 60° to 90° to be 20% or less of the equipment luminous flux.Type: GrantFiled: June 22, 2012Date of Patent: June 10, 2014Assignee: Toshiba Lighting & Technology CorporationInventors: Yoko Noguchi, Tomoko Ishiwata, Kazunori Yashiro, Masaru Inoue, Makoto Kawagoe, Fumie Iwata, Hitoshi Kawano, Shigehisa Kawatsuru
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Patent number: 8686647Abstract: Plural luminaires are installed in a lighting space surrounded by a wall part. A sensor equipment detects existence or nonexistence of a person in the lighting space. If existence of a person in the lighting space is detected, the sensor equipment detects a direction of the person. The sensor equipment detects a distance between the wall part positioned in front of the direction of the person and the person. A lighting control unit selectively switches between a first control for performing lighting control of the luminaires to illuminate the wall part positioned in front of the direction of the person if the detected distance is a specified distance or less, and a second control for performing lighting control of the luminaires to reduce brightness at a place as the place becomes farther from a position of the person if the detected distance is larger than the specified distance.Type: GrantFiled: October 25, 2012Date of Patent: April 1, 2014Assignee: Toshiba Lighting & Technology CorporationInventors: Takayuki Ono, Tomoko Ishiwata, Yoko Noguchi, Makoto Kawagoe, Kenji Takahashi, Hidenori Nishigaki, Junko Takahashi, Shigehisa Kawatsuru, Hitoshi Kawano, Fumie Iwata, Katsusuke Uchino
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Publication number: 20140042914Abstract: According to one embodiment, a lighting control unit turns on luminaires corresponding to a presence area among four detection areas adjacent to one another in a predetermined direction and a crossing direction. If there is one presence area among the four detection areas, the lighting control unit relatively reduces the brightness of the luminaires corresponding to remaining three absence areas. If there are two presence areas among the four detection areas, the lighting control unit relatively reduces the brightness of the luminaires on a side adjacent to the presence areas among the luminaires corresponding to the remaining two absence areas and turns off the remaining other luminaires. If there are three presence areas among the four detection areas, the lighting control unit turns off the luminaires corresponding to the remaining one absence area.Type: ApplicationFiled: October 30, 2012Publication date: February 13, 2014Applicant: Toshiba Lighting & Technology CorporationInventors: Yoko NOGUCHI, Tomoko ISHIWATA, Makoto KAWAGOE, Takayuki ONO, Kenji TAKAHASHI, Hidenori NISHIGAKI, Junko TAKAHASHI, Fumie IWATA, Shigehisa KAWATSURU, Hitoshi KAWANO, Katsusuke UCHINO
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Publication number: 20140042911Abstract: According to one embodiment, a lighting control system includes a plurality of luminaire, a sensor device, a luminance sensor, and a lighting control unit. The luminaires are set in a lighting space. The sensor device detects presence of a person in the lighting space. The luminance sensor detects indirect luminance in a predetermined position in the lighting space by the luminaire. The lighting control unit subjects the luminaire to lighting control such that the indirect luminance detected by the luminance sensor does not fall below a predetermined value in a position where the sensor device detects presence of the person.Type: ApplicationFiled: November 29, 2012Publication date: February 13, 2014Applicant: Toshiba Lighting & Technology CorporationInventors: Yoko NOGUCHI, Tomoko Ishiwata, Makoto Kawagoe, Takayuki Ono, Kenji Takahashi, Hidenori Nishigaki, Junko Takahashi, Shigehisa Kawatsuru, Hitoshi Kawano, Fumie Iwata
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Publication number: 20140042915Abstract: Plural luminaires are installed in a lighting space surrounded by a wall part. A sensor equipment detects existence or nonexistence of a person in the lighting space. If existence of a person in the lighting space is detected, the sensor equipment detects a direction of the person. The sensor equipment detects a distance between the wall part positioned in front of the direction of the person and the person. A lighting control unit selectively switches between a first control for performing lighting control of the luminaires to illuminate the wall part positioned in front of the direction of the person if the detected distance is a specified distance or less, and a second control for performing lighting control of the luminaires to reduce brightness at a place as the place becomes farther from a position of the person if the detected distance is larger than the specified distance.Type: ApplicationFiled: October 25, 2012Publication date: February 13, 2014Applicant: Toshiba Lighting & Technology CorporationInventors: Takayuki Ono, Tomoko Ishiwata, Yoko Noguchi, Makoto Kawagoe, Kenji Takahashi, Hidenori Nishigaki, Junko Takahashi, Shigehisa Kawatsuru, Hitoshi Kawano, Fumie Iwata, Katsusuke Uchino
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Publication number: 20130247352Abstract: A method for designing indoor lighting includes disposing a first luminaire on a ceiling surface that forms an indoor space, the first luminaire having a luminous intensity distribution characteristic that a luminous flux over a range of luminous intensity distribution angles no smaller than 90 degrees but no greater than 120 degrees with respect to a vertically downward direction, which represents 0 degrees, is 20% of a luminous flux of the luminaire or greater and a luminous flux over a range of luminous intensity distribution angles no smaller than 60 degrees but smaller than 90 degrees is 20% of the luminous flux of the luminaire or smaller; and disposing a second luminaire in the indoor space, the second luminaire illuminating a wall surface present in a region corresponding to the luminous intensity distribution angles of light from the first luminaire no less than 60 degrees but smaller than 90 degrees.Type: ApplicationFiled: March 14, 2013Publication date: September 26, 2013Applicant: TOSHIBA LIGHTING & TECHNOLOGY CORPORATIONInventors: Yoko Noguchi, Tomoko Ishiwata, Kazunori Yashiro, Masaru Inoue, Makoto Kawagoe, Hitoshi Kawano, Shigehisa Kawatsuru, Fumie Iwata
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Publication number: 20130250554Abstract: According to one embodiment, a luminaire is provided which can enhance the feeling of brightness of a space and can reduce glare. The luminaire includes an equipment mounted on a ceiling surface. The equipment includes a light source and a light control unit. When an amount of light emitted outside from the equipment is an equipment luminous flux, and a direction right under the equipment has a luminous intensity distribution angle of 0°, the light control unit controls to cause a luminous flux falling within a range of a luminous intensity distribution angle of 90° to 120° to be 20% or more of the equipment luminous flux and to cause a luminous flux falling within a range of a luminous intensity distribution angle of 60° to 90° to be 20% or less of the equipment luminous flux.Type: ApplicationFiled: June 22, 2012Publication date: September 26, 2013Applicant: Toshiba Lighting & Technology CorporationInventors: Yoko NOGUCHI, Tomoko Ishiwata, Kazunori Yashiro, Masaru Inoue, Makoto Kawagoe, Fumie Iwata, Hitoshi Kawano, Shigehisa Kawatsuru
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Publication number: 20130250586Abstract: A lighting device according to an embodiment includes a light source module, a thermal radiation member, and a fixing member. The light source module is a module mounted with a light-emitting element such as an LED (Light Emitting Diode) on the inside and including the light-emitting element as a light source. In the thermal radiation member, the light source module is set. The thermal radiation member radiates heat generated from the light source module. A fixing member is screwed on a sidewall of the thermal radiation member in a state in which the fixing member surrounds the light source module and the thermal radiation member.Type: ApplicationFiled: March 13, 2013Publication date: September 26, 2013Applicant: TOSHIBA LIGHTING & TECHNOLOGY CORPORATIONInventors: Jun Sasaki, Ryotaro Matsuda, Naoto Mori, Yoshiyuki Matsunaga, Shigehisa Kawatsuru, Takahiro Sogo
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Publication number: 20130076262Abstract: According to an embodiment, a lighting device includes a first to fourth light sources, a control unit, and an operation unit. The first to fourth light sources have a different combination of a relatively high/low correlated color temperature and a relatively high/low general color rendering index from each other. The control unit controls at least two of a light flux, the correlated color temperature, and the general color rendering index of each of the light sources. The operation unit designates at least one of the correlated color temperature and the general color rendering index of each of the light sources, and executes spectral distribution with the designated correlated color temperature, or general color rendering index.Type: ApplicationFiled: August 2, 2012Publication date: March 28, 2013Applicant: TOSHIBA LIGHTING & TECHNOLOGY CORPORATIONInventors: Yoko Noguchi, Kazunori Yashiro, Tomoko Ishiwata, Kenji Takahashi, Fumie Iwata, Shigehisa Kawatsuru, Hitoshi Kawano
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Publication number: 20130070460Abstract: A lighting apparatus according to an exemplary embodiment includes a light source including a light emitting element, a reflection portion main body that is formed of an incombustible resin and is provided at an emission side of the light source, and a reflection layer that is formed of resin substantially not containing halogen or phosphorus and is provided on a surface of the reflection portion main body.Type: ApplicationFiled: September 14, 2012Publication date: March 21, 2013Applicant: Toshiba Lighting & Technology CorporationInventors: Kenichi ASAMI, Yoshiyuki Matsunaga, Shinji Nakata, Makoto Sakai, Takeshi Hisayasu, Hiroki Tamai, Kazunari Higuchi, Hitoshi Kawano, Shigehisa Kawatsuru
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Publication number: 20050099129Abstract: A metal halide lamp used for both of a vehicle headlight and an infrared night imaging vision apparatus, comprises a refractory and light-transmitting hermetic vessel, a pair of electrodes sealed in the hermetic vessel, and a discharge medium sealed in the hermetic vessel. The discharge medium contains a first halide containing at least one of sodium, scandium and a rare earth metal, a second halide which is a halide of a metal which emits light mainly in a near-infrared region of a wavelength of 780 to 800 nm, and a gas which emits light mainly in a near-infrared region of a wavelength of 820 to 1000 nm, and does not substantially contain mercury.Type: ApplicationFiled: November 5, 2004Publication date: May 12, 2005Inventors: Toshihiko Ishigami, Shigehisa Kawatsuru, Mikio Matsuda, Toshio Hiruta
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Patent number: 6850015Abstract: A high pressure discharge lamp starter device comprises a starter circuit OC and control element CC. The starter circuit OC is capable of starting up an essentially mercury free high-pressure discharge lamp HPL containing a rare gas and a metal halide. The control element CC controls the starter circuit OC to start up the high pressure discharge lamp HPL, supply a lamp power larger than twice a rated lamp power, reduce lamp power such that light output is not significantly larger compared to that during a stable light emission time and the light output does not rapidly increase, when a metal halide charged in the high pressure discharge lamp HPL is abruptly vaporized, thereafter, gradually reduce the lamp power so as to settle the rated lamp power.Type: GrantFiled: August 1, 2003Date of Patent: February 1, 2005Assignee: Harison Toshiba Lighting Corp.Inventors: Akio Ishizuka, Shigehisa Kawatsuru
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Publication number: 20040090188Abstract: A high pressure discharge lamp starter device comprises a starter circuit OC and control means CC. The starter circuit OC is capable of starting up an essentially mercury free high-pressure discharge lamp HPL containing a rare gas and a metal halide. The control means CC controls the starter circuit OC to start up the high pressure discharge lamp HPL, supply a lamp power larger than twice a rated lamp power, reduce lamp power such that light output is not significantly larger compared to that during a stable light emission time and the light output does not rapidly increase, when a metal halide charged in the high pressure discharge lamp HPL is abruptly vaporized, thereafter, gradually reduce the lamp power so as to settle the rated lamp power.Type: ApplicationFiled: August 1, 2003Publication date: May 13, 2004Applicant: Harison Toshiba Lighting Corp.Inventors: Akio Ishizuka, Shigehisa Kawatsuru
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Patent number: 6495962Abstract: A metal halide lamp comprises a light-transmitting discharge vessel having a discharge space portion, a sealed portion, and a pair of electrodes projecting into the discharge space. The discharge vessel is constructed and arranged to have a D/L ratio being in a range of about 0.25 to about 1.5 and a t/L ratio being in a range of about 0.16 to about 1.1, wherein L is an interspace of tips of the electrodes, D is a maximum inner diameter of the discharge vessel, and t is a maximum wall thickness of the discharge space portion. An ionizable filling contains a rare gas and a metal halide including at least sodium (Na) or scandium (Sc) and does not substantially include mercury (Hg). Each of conductive wires is connected electrically to the electrodes extending from the discharge vessel. The metal halide lamp may be used for a metal halide lamp apparatus or a vehicle lighting apparatus.Type: GrantFiled: April 27, 2001Date of Patent: December 17, 2002Assignee: Toshiba Lighting & Technology CorporationInventors: Kozo Uemura, Toshihiko Ishigami, Toshio Hiruta, Mikio Matsuda, Shigehisa Kawatsuru, Isao Yamazaki, Akio Ishizuka
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Publication number: 20020158580Abstract: A metal halide lamp comprises a light-transmitting discharge vessel having a discharge space portion, a sealed portion, and a pair of electrodes projecting into the discharge space. The discharge vessel is constructed and arranged to have a D/L ratio being in a range of about 0.25 to about 1.5 and a D/L ratio being in a range of about 0.16 to about 1.1, wherein L is an interspace of tips of the electrodes, D is a maximum inner diameter of the discharge vessel, and t is a maximum wall thickness of the discharge space portion. An ionizable filling contains a rare gas and a metal halide including at least sodium (Na) or scandium (Sc) and does not substantially include mercury (Hg). Each of conductive wires is connected electrically to the electrodes extending from the discharge vessel. The metal halide lamp may be used for a metal halide lamp apparatus or a vehicle lighting apparatus.Type: ApplicationFiled: April 27, 2001Publication date: October 31, 2002Inventors: Kozo Uemura, Toshihiko Ishigami, Toshio Hiruta, Mikio Matsuda, Shigehisa Kawatsuru, Isao Yamazaki, Akio Ishizuka
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Patent number: 6448712Abstract: A high-pressure discharge lamp which includes a light-transmitting air-tight discharge container, an electrode formed of tungsten as a main component and fixedly sealed in the discharge container, and a discharge medium containing a halide of a light emitting metal and sealed in the discharge container. The surface of the electrode is defined as follows. That is, the average value of center line average roughness Ra of the surface, is set to 0.3 &mgr;m or less, or the average value of the center line average roughness Rz of the surface of the electrode, is set to 1.0 &mgr;m or less, or the average value of the surface area increasing rate of the surface of the electrode is set to 1.0% or less.Type: GrantFiled: January 11, 2001Date of Patent: September 10, 2002Assignee: Toshiba Lighting and Technology CorporationInventors: Hisashi Honda, Seiji Ashida, Kiyoshi Saita, Ariyoshi Ishizaki, Akira Itoh, Shigehisa Kawatsuru, Tatsuo Otabe
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Publication number: 20010008365Abstract: A high-pressure discharge lamp which includes a light-transmitting air-tight discharge container, an electrode formed of tungsten as a main component and fixedly sealed in the discharge container, and a discharge medium containing a halide of a light emitting metal and sealed in the discharge container. The surface of the electrode is defined as follows. That is, the average value of center line average roughness Ra of the surface, is set to 0.3 &mgr;m or less, or the average value of the center line average roughness Rz of the surface of the electrode, is set to 1.0 &mgr;m or less, or the average value of the surface area increasing rate of the surface of the electrode is set to 1.0% or less.Type: ApplicationFiled: January 12, 2001Publication date: July 19, 2001Applicant: Toshiba Lighting and Technology CorporationInventors: Hisashi Honda, Seiji Ashida, Kiyoshi Saita, Ariyoshi Ishizaki, Akira Itoh, Shigehisa Kawatsuru, Tatsuo Otabe
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Patent number: 6249086Abstract: A high-pressure discharge lamp which includes a light-transmitting air-tight discharge container, an electrode formed of tungsten as a main component and fixedly sealed in the discharge container, and a discharge medium containing a halide of a light emitting metal and sealed in the discharge container. The surface of the electrode is defined as follows. That is, the average value of center line average roughness Ra of the surface, is set to 0.3 &mgr;m or less, or the average value of the center line average roughness Rz of the surface of the electrode, is set to 1.0 &mgr;m or less, or the average value of the surface area increasing rate of the surface of the electrode is set to 1.0% or less.Type: GrantFiled: December 10, 1999Date of Patent: June 19, 2001Assignee: Toshiba Lighting & Technology CorporationInventors: Hisashi Honda, Seiji Ashida, Kiyoshi Saita, Ariyoshi Ishizaki, Akira Itoh, Shigehisa Kawatsuru, Tatsuo Otabe