Patents by Inventor Katsusuke Uchino
Katsusuke Uchino 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: 8970127Abstract: A lighting circuit according to embodiments includes: a self-hold element connected in series to an AC power source that generates power for lighting an illumination load, together with the illumination load, the self-hold element being configured to control supply of the power provided by the AC power source to the illumination load by the self-hold element being turned on/off; a noise prevention circuit connected in parallel to the self-hold element; and a damping circuit configured to connect a damping resistance to the noise prevention circuit parallely only for a predetermined period from turning-on of the self-hold element, thereby preventing the self-hold element from being repeatedly turned on/off during a period in which the self-hold element is on under normal conditions, due to a transient during power supply.Type: GrantFiled: February 25, 2013Date of Patent: March 3, 2015Assignees: Toshiba Lighting & Technology Corporation, Kabushiki Kaisha ToshibaInventors: Mitsuhiro Matsuda, Naoko Iwai, Hajime Osaki, Hiroshi Kubota, Takuro Hiramatsu, Katsusuke Uchino, Masatoshi Kumagai
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Patent number: 8864511Abstract: Both ends of a lamp body are mounted on sockets of an apparatus body and a feeding unit configured to feed power to LEDs is provided on the back side facing the apparatus body of the lamp body.Type: GrantFiled: March 28, 2011Date of Patent: October 21, 2014Assignee: Toshiba Lighting & Technology CorporationInventors: Keiichi Shimizu, Masao Hori, Koji Sato, Yuki Harada, Toshiyuki Hiraoka, Kenji Sugiyama, Masanao Hieda, Naoki Sugishita, Satoshi Watanabe, Masahiko Kamata, Katsusuke Uchino
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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: 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: 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: 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: 20130027924Abstract: Both ends of a lamp body are mounted on sockets of an apparatus body and a feeding unit configured to feed power to LEDs is provided on the back side facing the apparatus body of the lamp body.Type: ApplicationFiled: March 28, 2011Publication date: January 31, 2013Inventors: Keiichi Shimizu, Masao Hori, Koji Sato, Yuki Harada, Toshiyuki Hiraoka, Kenji Sugiyama, Masanao Hieda, Naoki Sugishita, Satoshi Watanabe, Masahiko Kamata, Katsusuke Uchino
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Publication number: 20120169122Abstract: Disclosed is a direct current power switch device which safely shuts off direct current power supply without generating arc at the time of shutting off the power supply to an electrical load. The direct current power switch device is provided with: an operation input unit (12), which instructs supply and supply stop of direct current power; a switch contact (14) provided on a power feed line, which supplies the direct current power to a lighting controller (30), i.e., an electrical apparatus that controls power supply; a notifying means, which notifies the lighting controller (30) of power shutoff, in the case where the operation input unit (12) instructed supply stop of the direct current power; and a control unit (11) which opens the switch contact (14) when it is detected that power supply has been controlled to reduce the current in the electrical apparatus after the notification is made.Type: ApplicationFiled: December 17, 2010Publication date: July 5, 2012Applicant: TOSHIBA LIGHTING & TECHNOLOGY CORPORATIONInventors: Kenji Takahashi, Toshiaki Takahashi, Takafumi Oishi, Hirokazu Otake, Mitsuhiro Matsuda, Teruyoshi Goto, Yuji Takahashi, Noriyuki Kitamura, Isao Yamazaki, Katsusuke Uchino, Shinichi Kumashiro
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Publication number: 20120008318Abstract: A lighting apparatus includes a red LED; a green LED; a blue LED; and a white LED made up of a blue light-emitting element and a yellow phosphor, wherein the red LED, the green LED, the blue LED, and the white LED generate 26 to 38%, 35 to 50%, 0 to 2%, and 12 to 33% of light, respectively, and white light obtained by additive color mixing of light from the red, green, blue, and white LEDs has a correlated color temperature of 2800 K or more to less than 3500 K, a deviation of 0.02 or below in absolute value, and a color gamut area ratio of 120% or more to 140% or less. Consequently, the lighting apparatus can radiate an illuminating light which makes colors look vivid.Type: ApplicationFiled: April 27, 2010Publication date: January 12, 2012Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA LIGHTING & TECHNOLOGY CORPORATIONInventors: Tomoko Ishiwata, Kazunori Yashiro, Kazutoshi Mita, Hitoshi Kawano, Katsusuke Uchino, Isao Yamazaki
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Publication number: 20110043121Abstract: A lighting circuit according to embodiments includes: a self-hold element connected in series to an AC power source that generates power for lighting an illumination load, together with the illumination load, the self-hold element being configured to control supply of the power provided by the AC power source to the illumination load by the self-hold element being turned on/off; a noise prevention circuit connected in parallel to the self-hold element; and a damping circuit configured to connect a damping resistance to the noise prevention circuit parallely only for a predetermined period from turning-on of the self-hold element, thereby preventing the self-hold element from being repeatedly turned on/off during a period in which the self-hold element is on under normal conditions, due to a transient during power supply.Type: ApplicationFiled: August 20, 2010Publication date: February 24, 2011Applicants: TOSHIBA LIGHTING & TECHNOLOGY CORPORATION, KABUSHIKI KAISHA TOSHIBAInventors: MITSUHIRO MATSUDA, Naoko Iwai, Hajime Osaki, Hiroshi Kubota, Takuro Hiramatsu, Katsusuke Uchino, Masatoshi Kumagai
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Patent number: 5637963Abstract: An electrodeless high intensity discharge lamp has a light transmissive ceramic arc tube for containing a discharge sustaining medium and a hollow tube member. An excitation coil for causing an arc discharge is situated about the arc tube. The ceramic arc tube includes a first portion for developing the arc discharge therein and a second portion protruding outwardly from the first portion. The hollow tube member is so disposed in the second portion that a space is provided between the inner wall surface of the second portion and the outer wall surface of the hollow tube member. The space is in communication with the interior of the first portion for allowing the medium to be condensed and retained during the lamp operation.Type: GrantFiled: March 10, 1995Date of Patent: June 10, 1997Assignee: Toshiba Lighting & Technology CorporationInventors: Akihiro Inoue, Akira Ito, Katsusuke Uchino, Shigehisa Kawatsuru
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Patent number: 5276385Abstract: The invention provides a high-pressure discharge lamp incorporating an outer envelope storing a pair of electric terminals a plurality of arc tubes which are respectively stored in this outer envelope and electrically connected in parallel, and a plurality of ignition aids available for assisting operating of these arc tubes, where these ignition aids are provided for each of these arc tubes and contain potentials different from each other. In addition, the invention also provides a lighting system for operating the high-pressure discharge lamp.Type: GrantFiled: September 25, 1991Date of Patent: January 4, 1994Assignee: Toshiba Lighting & Technology CorporationInventors: Akira Itoh, Kazuyoshi Okamura, Kazuiki Uchida, Mitsuho Kotabe, Hirochika Shiohama, Kimihito Sato, Yasuki Mori, Katsusuke Uchino
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Patent number: 5243251Abstract: This invention provides an improved layer coated on the outer surface of the envelope of high intensity discharge lamps, halogen lamps and so on. The overcoated layer is provided for preventing glass pieces of the envelope from scattering when the glass envelope is broken. Therefore the improved and strengthened layer comprises a fluorocarbon polymer containing metal oxide grains dispersed therein. The metal oxide grains are dispersed in the fluorocarbon polymer since the overcoated layer is heated at more than 200.degree. C. Further, for the purpose of strengthening the overcoated layer, the overcoated layer has an even density of the metal oxide grains in the fluorocarbon polymer. The even density of the metal oxide grains in the fluorocarbon polymer is obtained only by this invention of the coating method that includes a electrostatic coating step.Type: GrantFiled: October 14, 1992Date of Patent: September 7, 1993Assignee: Toshiba Lighting & Technology CorporationInventors: Shinji Inukai, Satoshi Iwasawa, Kazuo Takita, Katsusuke Uchino