Patents by Inventor Toshiyuki Namura
Toshiyuki Namura 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).
-
Patent number: 8710724Abstract: An LED light source lamp includes a housing configured to be attached to a lamp holder; an LED module provided in the housing; a drive circuit provided in the housing and configured to drive the LED module to cause the LED module to emit light; an LED installation plate on which the LED module is installed; a cover arranged to block an optical axis of the LED module and configured to transmit light emitted from the LED module; and a separation member configured to separate the drive circuit from a space between the LED module and the cover in the housing. The LED installation plate has a rear surface, opposite the surface on which the LED module is installed. The rear surface is configured to closely contact the lamp holder, and is a part of the housing.Type: GrantFiled: November 18, 2013Date of Patent: April 29, 2014Assignee: Panasonic CorporationInventors: Hiroki Nakagawa, Toshiyuki Namura, Yoshinori Kakuno, Kazushige Sugita
-
Publication number: 20140071690Abstract: An LED light source lamp includes a housing configured to be attached to a lamp holder; an LED module provided in the housing; a drive circuit provided in the housing and configured to drive the LED module to cause the LED module to emit light; an LED installation plate on which the LED module is installed; a cover arranged to block an optical axis of the LED module and configured to transmit light emitted from the LED module; and a separation member configured to separate the drive circuit from a space between the LED module and the cover in the housing. The LED installation plate has a rear surface, opposite the surface on which the LED module is installed. The rear surface is configured to closely contact the lamp holder, and is a part of the housing.Type: ApplicationFiled: November 18, 2013Publication date: March 13, 2014Applicant: PANASONIC CORPORATIONInventors: Hiroki NAKAGAWA, Toshiyuki NAMURA, Yoshinori KAKUNO, Kazushige SUGITA
-
Patent number: 8604679Abstract: An LED light source lamp has built-in drive circuits in a housing, and is used by being attached to a lamp holder. An LED installation plate is arranged, in a main space of the housing, on an attachment side to the lamp holder. An LED module on a surface, of the LED installation plate, opposite to the lamp holder, is a collection of LEDs driven by the drive circuit. A light diffusion member is arranged so as to block the optical axis of light emitted by each LED of the LED module. Here, the drive circuits are arranged in an outer peripheral space, between the LED module and the light diffusion member, so as not to block the optical axis of light emitted by each LED of the LED module.Type: GrantFiled: February 2, 2011Date of Patent: December 10, 2013Assignee: Panasonic CorporationInventors: Hiroki Nakagawa, Toshiyuki Namura, Yoshinori Kakuno, Kazushige Sugita
-
Publication number: 20120319555Abstract: An LED light source lamp has built-in drive circuits in a housing, and is used by being attached to a lamp holder. An LED installation plate is arranged, in a main space of the housing, on an attachment side to the lamp holder. An LED module on a surface, of the LED installation plate, opposite to the lamp holder, is a collection of LEDs driven by the drive circuit. A light diffusion member is arranged so as to block the optical axis of light emitted by each LED of the LED module. Here, the drive circuits are arranged in an outer peripheral space, between the LED module and the light diffusion member, so as not to block the optical axis of light emitted by each LED of the LED module.Type: ApplicationFiled: February 2, 2011Publication date: December 20, 2012Applicant: PANASONIC CORPORATIONInventors: Hiroki Nakagawa, Toshiyuki Namura, Yoshinori Kakuno, Kazushige Sugita
-
Patent number: 7223145Abstract: An object of the present invention is to provide, without increasing the costs or decreasing the quantity of light, a fluorescent lamp that is less likely to have the bridge and the constituent tubes damaged while being handled and has improved handleability, as well as to provide a manufacturing method therefor. It is arranged so that the distance between the first and second constituent tubes gradually becomes smaller from the base side of the lamp toward the turning portion side of the lamp where the discharge paths turn. It is arranged so that the value of D2/D1 is within a range of 0.05 to 0.70 inclusive, where D1 is the distance between the first and second constituent tubes being measured at the bridge connecting points on the base side, and D2 is the shortest distance between the first and second constituent tubes on the turning portion side.Type: GrantFiled: August 15, 2005Date of Patent: May 29, 2007Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yusuke Okazaki, Nobutaka Ota, Toshiyuki Namura, Akio Kitada, Tadashi Shimizu
-
Patent number: 7009334Abstract: An object of the present invention is to provide, without increasing the costs or decreasing the quantity of light, a fluorescent lamp that is less likely to have the bridge and the constituent tubes damaged while being handled and has improved handleability, as well as to provide a manufacturing method therefor. It is arranged so that the distance between the first and second constituent tubes gradually becomes smaller from the base side of the lamp toward the turning portion side of the lamp where the discharge paths turn. It is arranged so that the value of D2/D1 is within a range of 0.05 to 0.70 inclusive, where D1 is the distance between the first and second constituent tubes being measured at the bridge connecting points on the base side, and D2 is the shortest distance between the first and second constituent tubes on the turning portion side.Type: GrantFiled: December 9, 2003Date of Patent: March 7, 2006Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yusuke Okazaki, Nobutaka Ota, Toshiyuki Namura, Akio Kitada, Tadashi Shimizu
-
Publication number: 20060030233Abstract: An object of the present invention is to provide, without increasing the costs or decreasing the quantity of light, a fluorescent lamp that is less likely to have the bridge and the constituent tubes damaged while being handled and has improved handleability, as well as to provide a manufacturing method therefor. It is arranged so that the distance between the first and second constituent tubes gradually becomes smaller from the base side of the lamp toward the turning portion side of the lamp where the discharge paths turn. It is arranged so that the value of D2/D1 is within a range of 0.05 to 0.70 inclusive, where D1 is the distance between the first and second constituent tubes being measured at the bridge connecting points on the base side, and D2 is the shortest distance between the first and second constituent tubes on the turning portion side.Type: ApplicationFiled: August 15, 2005Publication date: February 9, 2006Inventors: Yusuke Okazaki, Nobutaka Ota, Toshiyuki Namura, Akio Kitada, Tadashi Shimizu
-
Publication number: 20040160188Abstract: An object of the present invention is to provide, without increasing the costs or decreasing the quantity of light, a fluorescent lamp that is less likely to have the bridge and the constituent tubes damaged while being handled and has improved handleability, as well as to provide a manufacturing method therefor. It is arranged so that the distance between the first and second constituent tubes gradually becomes smaller from the base side of the lamp toward the turning portion side of the lamp where the discharge paths turn. It is arranged so that the value of D2/D1 is within a range of 0.05 to 0.70 inclusive, where D1 is the distance between the first and second constituent tubes being measured at the bridge connecting points on the base side, and D2 is the shortest distance between the first and second constituent tubes on the turning portion side.Type: ApplicationFiled: December 9, 2003Publication date: August 19, 2004Inventors: Yusuke Okazaki, Nobutaka Ota, Toshiyuki Namura, Akio Kitada, Tadashi Shimizu
-
Patent number: 5828169Abstract: In a fluorescent lamp with amalgam, a surface of the amalgam is covered by a barrier having at least one opening through which mercury atoms can move to a discharge space of the lamp from the amalgam while the lamp is being lighted. When the lamp is switched off, the barrier restricts the return of the mercury atoms from the discharge space to the amalgam. The amalgam solidifies faster than all the mercury atoms return to the amalgam, so that a lot of mercury atoms remain in the discharge space. When the lamp is re-lighted, an initial mercury vapor pressure can be maintained. Thus, the lamp illuminates at a predetermined intensity of the luminance from the beginning of the re-lighting.Type: GrantFiled: May 23, 1996Date of Patent: October 27, 1998Assignee: Matsushita Electronics CorporationInventors: Minoru Myojo, Toshiyuki Namura
-
Patent number: 5646483Abstract: A discharge lamp or an electrodeless discharge lamp including a discharge gas filled inside a bulb, an electrode part present inside the bulb for emitting thermoelectrons into the discharge gas, and a cesium compound placed in a position other than the electrode part inside the bulb. According to this configuration, this discharge lamp has a short starting delay time even at a low temperature including room temperature, without using any starting auxiliary light source or a radioactive material. The cesium compound is contained on the surface of a metal mesh which is fixed via a supporting arm in a position avoiding the electrode part inside the bulb. It is preferable that the cesium oxide is in contact with the discharge space. In this way, starting property can be improved without using any starting auxiliary light source or a radioactive material. The electrodeless discharge lamp has the cesium compound at an optional position in the discharge space.Type: GrantFiled: May 30, 1995Date of Patent: July 8, 1997Assignee: Matsushita Electronics CorporationInventors: Minoru Myojo, Haruo Yamazaki, Toshiyuki Namura