Patents by Inventor Shigetaka Douzono
Shigetaka Douzono 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: 20110220476Abstract: A switch device includes a box-shaped case, a harness portion, and a fixing member. The harness portion is connected to a switch contact point and includes a plurality of lead lines extending out of the case. The case includes a holding body and a guide portion. The holding body includes a fixing portion protruding from an outer face of the case and provided on a tip side, and a through-hole provided under the fixing portion. The guide portion is opposed to the through-hole and formed in a substantially concave curve shape. The guide portion is formed such that an end portion further from the through-hole is positioned to be above an end portion closer to the through-hole. The fixing member extends through the through-hole and fixes the harness portion to the holding body by winding the harness portion and the fixing portion together.Type: ApplicationFiled: March 9, 2011Publication date: September 15, 2011Applicant: PANASONIC CORPORATIONInventors: KAZUHISA FUJITA, MIKIO NISHIMURA, SHIGETAKA DOUZONO, KOUICHI SANTO, KENJI OTOMO
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Patent number: 8013265Abstract: A switch device includes a box-shaped case, a harness portion, and a fixing member. The harness portion is connected to a switch contact point and includes a plurality of lead lines extending out of the case. The case includes a holding body and a guide portion. The holding body includes a fixing portion protruding from an outer face of the case and provided on a tip side, and a through-hole provided under the fixing portion. The guide portion is opposed to the through-hole and formed in a substantially concave curve shape. The guide portion is formed such that an end portion further from the through-hole is positioned to be above an end portion closer to the through-hole. The fixing member extends through the through-hole and fixes the harness portion to the holding body by winding the harness portion and the fixing portion together.Type: GrantFiled: March 9, 2011Date of Patent: September 6, 2011Assignee: Panasonic CorporationInventors: Kazuhisa Fujita, Mikio Nishimura, Shigetaka Douzono, Kouichi Santo, Kenji Otomo
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Patent number: 6837604Abstract: A lighting apparatus is configured by disposing an EL element inside a stationary housing including, about its top side, an operating part including a plurality of arranged push buttons as well as inside a movable housing openably mounted to the stationary housing and having a display part at its surface, and connecting a control circuit to the EL elements, the operating part and the display part. The control circuit controls light emission of the respective EL elements of the stationary housing and the movable housing to illuminate the operating part and the display part, so that the lighting apparatus simple in structure is capable of various illuminations.Type: GrantFiled: August 15, 2002Date of Patent: January 4, 2005Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Shigetaka Douzono, Takefumi Inoue, Tetsuya Koma, Yoshiharu Abe
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Patent number: 6764191Abstract: An EL element includes plural light-emitting regions for illuminating corresponding push buttons, and is disposed beneath the push buttons. The EL element is connected to a switching contact and a controller. An light-emitting operation of the EL element is controlled by the controller to illuminate a certain push button. The keyboard including the above components can provide multiple functions for illuminating the push buttons although having a simple structure.Type: GrantFiled: May 31, 2002Date of Patent: July 20, 2004Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Shigetaka Douzono, Takefumi Inoue, Tetsuya Koma, Yoshiharu Abe
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Patent number: 6686549Abstract: A cup-shaped elastic member 2 forces push button 1 upwardly that has indication part 1A formed thereon. Light transmitting electrode layer 15B, light-emitting layer 15C, and back electrode layer 15E are sequentially formed on light transmitting sheet 15A to form EL element 15, and the EL element is disposed on the upper or lower face of membrane switch 6. This structure can provide an inexpensive illuminated keyboard switch that allows clear illumination of the push button and uses a smaller number of components.Type: GrantFiled: February 25, 2002Date of Patent: February 3, 2004Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Shigetaka Douzono, Yoshiharu Abe
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Patent number: 6670565Abstract: An illumination type push button switch includes EL element 20 mounted to a bottom surface of board 17 below switch contact 2. Board 17 has through-holes 17A and 17B near the contact. EL element 20, which is capable of lighting plural push buttons simultaneously by surface-light emission, emits light via through-holes 17A and 17B of board 17 to light push buttons 11 and 12. The illumination type push button switch thus lighting the push buttons clearly includes a small number of components and is inexpensive.Type: GrantFiled: May 15, 2003Date of Patent: December 30, 2003Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Tetsuro Hanahara, Shigetaka Douzono, Takayuki Ishikawa, Yoshiharu Abe
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Publication number: 20030173198Abstract: An illumination type push button switch includes EL element 20 mounted to a bottom surface of board 17 below switch contact 2. Board 17 has through-holes 17A and 17B near the contact. EL element 20, which is capable of lighting plural push buttons simultaneously by surface-light emission, emits light via through-holes 17A and 17B of board 17 to light push buttons 11 and 12. The illumination type push button switch thus lighting the push buttons clearly includes a small number of components and is inexpensive.Type: ApplicationFiled: May 15, 2003Publication date: September 18, 2003Inventors: Tetsuro Hanahara, Shigetaka Douzono, Takayuki Ishikawa, Yoshiharu Abe
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Publication number: 20030039114Abstract: A lighting apparatus is configured by disposing an EL element inside a stationary housing including, about its top side, an operating part including a plurality of arranged push buttons as well as inside a movable housing openably mounted to the stationary housing and having a display part at its surface, and connecting a control circuit to the EL elements, the operating part and the display part. The control circuit controls light emission of the respective EL elements of the stationary housing and the movable housing to illuminate the operating part and the display part, so that the lighting apparatus simple in structure is capable of various illuminations.Type: ApplicationFiled: August 15, 2002Publication date: February 27, 2003Inventors: Shigetaka Douzono, Takefumi Inoue, Tetsuya Koma, Yoshiharu Abe
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Publication number: 20020196618Abstract: An EL element includes plural light-emitting regions for illuminating corresponding push buttons, and is disposed beneath the push buttons. The EL element is connected to a switching contact and a controller. An light-emitting operation of the EL element is controlled by the controller to illuminate a certain push button. The keyboard including the above components can provide multiple functions for illuminating the push buttons although having a simple structure.Type: ApplicationFiled: May 31, 2002Publication date: December 26, 2002Inventors: Shigetaka Douzono, Takefumi Inoue, Tetsuya Koma, Yoshiharu Abe
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Publication number: 20020145591Abstract: A lighting unit includes a switch device for performing electrical ON-OFF by depressing a pushbutton, and an EL device having light-emitting sections corresponding to the pushbuttons disposed at least one of above or under the switch device. The EL device includes an optically transparent electrode layer, a light-emitting layer and a backplate layer, where the respective layers are selectively laminated, corresponding to the light-emitting sections, on an insulating base. This structure of the lighting unit realizes visible lighting and allows the lighting unit to be assembled with less components and less steps of mounting components.Type: ApplicationFiled: March 6, 2002Publication date: October 10, 2002Inventors: Minoru Hato, Yoshiharu Abe, Shigetaka Douzono
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Publication number: 20020125118Abstract: A cup-shaped elastic member 2 forces push button 1 upwardly that has indication part 1A formed thereon. Light transmitting electrode layer 15B, light-emitting layer 15C, and back electrode layer 15E are sequentially formed on light transmitting sheet 15A to form EL element 15, and the EL element is disposed on the upper or lower face of membrane switch 6. This structure can provide an inexpensive illuminated keyboard switch that allows clear illumination of the push button and uses a smaller number of components.Type: ApplicationFiled: February 25, 2002Publication date: September 12, 2002Inventors: Shigetaka Douzono, Yoshiharu Abe