Patents by Inventor Naoki Tatehata
Naoki Tatehata 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).
-
Publication number: 20100140069Abstract: A concavo-convex light emitting section provided on an under surface of a base material is formed of a synthetic resin with inorganic oxide dispersed therein. A larger amount of light is reflected by inorganic oxide having a large refractive index and dispersed inside the synthetic resin, to cause a plurality of light emitting sections to emit bright light with a small number of light emitting elements. A light guiding sheet capable of making bright and uniform illumination and a movable contact body using the same are realized with a simple configuration.Type: ApplicationFiled: December 1, 2009Publication date: June 10, 2010Applicant: PANASONIC CORPORATIONInventors: Naoki TATEHATA, Tsutomu AISAKA, Hirotoshi WATANABE, Yousuke CHIKAHISA
-
Patent number: 7718910Abstract: A movable contact assembly includes a movable contact having a dome shape, a base sheet contacting an upper surface of the movable contact, a columnar portion provided on an upper surface of the base sheet, and a light guide sheet provided on an upper surface of the columnar portion. The light guide sheet has a light-receiving surface for introducing light into the light guide sheet, and allows the introduced light to be emitted from an upper surface of the light guide sheet. The base sheet includes a dome portion having a concave lower surface, and a flat portion connected with an outer edge of the dome portion. The columnar portion is positioned on the upper surface of the dome portion away from the outer edge of the dome portion of the base sheet. This movable contact assembly provides a switch illuminating its upper surface and being activated easily with a preferable feeling.Type: GrantFiled: June 17, 2008Date of Patent: May 18, 2010Assignee: Panasonic CorporationInventors: Naoki Tatehata, Takefumi Inoue
-
Publication number: 20100020567Abstract: A light guide sheet includes a material sheet having a film shape, first and second illuminations portion provided on the material sheet for diffusing light. The material sheet has a slit having substantially a strip shape provided therein and provided around the first illumination portion. The slit has a first edge and a second edge opposite to the first edge. The first edge faces the first illumination portion. The material sheet includes a first bridge and a second bridge linking the first edge of the first slit to the second edge across the first slit. This light guide sheet provides a movable contact assembly which is easily fabricated and provides preferable illuminating.Type: ApplicationFiled: July 21, 2009Publication date: January 28, 2010Applicant: PANASONIC CORPORATIONInventors: Naoki Tatehata, Nobuhisa Takahashi, Masahiro Ito, Makoto Sadakane, Shinji Ohkawa
-
Patent number: 7626773Abstract: A lens unit includes a lens barrel (7) with a through hole (6), a first lens (8a) press-fitted into the through-hole (6), a first step (9a) catching an outer edge of the first lens (8a) in the through-hole (6), a second lens (8b) press-fitted into the through-hole (6) in a direction of an optical axis of the first lens (8a), and a second step (9b) catching an outer edge of the second lens (8b) in the through-hole (6). The second lens (8b) has a diameter larger than that of the first lens (8a). A third step (10a) or a sloped portion broadening the through hole from the first lens to the second lens is further provided.Type: GrantFiled: November 4, 2005Date of Patent: December 1, 2009Assignee: Panasonic CorporationInventors: Toshinari Noda, Naoki Tatehata, Yoshihiko Tsujikawa, Satoshi Ueda, Katsuya Morinaka
-
Publication number: 20090268454Abstract: A light guide sheet and a movable contact element using the single sheet have a simple structure and can be variously illuminated. The light guide sheet includes irregular-shaped light emitting elements formed on a film-like base material; and light-transmissive, belt-shaped light guide parts each connecting a predetermined number of groups of the light emitting elements. In addition, dome-shaped movable contacts formed of a conductive sheet metal are arranged on the bottom surfaces of the light emitting elements. This structure allows the light emitting elements to emit light of different colors from each other or to emit light with a time difference by making the light guide parts introduce the light of the light-emitting devices corresponding thereto.Type: ApplicationFiled: February 25, 2009Publication date: October 29, 2009Inventors: Naoki TATEHATA, Yousuke Chikahisa, Tsutomu Aisaka, Koji Tanabe
-
Publication number: 20090179872Abstract: It comprises a touch panel with a plurality of band-like optically transmissive lower electrodes and upper electrodes formed at predetermined intervals in directions perpendicular to each other on an upper surface of an optically transparent base sheet, a dome-like movable contact formed from a conductive metal sheet which is mounted under the touch panel, and a light guide sheet with a plurality of convex-concave light emitting portions formed on an optically transparent substrate, which is disposed between the touch panel and the movable contact. Accordingly, uniform illumination can be attained by using only one or two light emitting elements, and it is possible to obtain a movable contact body capable of inexpensive and reliable illumination.Type: ApplicationFiled: January 13, 2009Publication date: July 16, 2009Inventors: Naoki Tatehata, Yousuke Chikahisa, Koji Tanabe
-
Publication number: 20090179871Abstract: A touch panel includes multiple belt-like lower electrodes formed on a light transparent base sheet and multiple belt-like upper electrodes placed away from the lower electrodes with a predetermined distance therebetween and in a direction crossing with the lower electrodes at right angles. The lower and upper electrodes are made of light transmissive and electrically conductive resin, so that they can be formed in a simple way such as printing. The foregoing structure thus allows obtaining the touch panel manufactured in a simple way at a lower cost.Type: ApplicationFiled: January 13, 2009Publication date: July 16, 2009Inventors: Naoki Tatehata, Yousuke Chikahisa, Koji Tanabe
-
Publication number: 20090173608Abstract: A light-guide sheet includes a light transmissive film substrate, and luminescent protrusions formed at predetermined points on the substrate. At least one of the substrate and each of the luminescent protrusions is colored to a color tone that absorbs yellow light more than blue light. Alternatively, a reflective layer colored to a color tone that absorbs yellow light more than blue light is provided on at least one of the top and bottom faces of the substrate.Type: ApplicationFiled: January 6, 2009Publication date: July 9, 2009Inventors: Naoki TATEHATA, Yousuke Chikahisa, Tsutomu Aisaka, Koji Tanabe, Hirotoshi Watanabe
-
Publication number: 20090145733Abstract: The movable contact unit with a light-guiding function has the following structure. An uneven section is formed in a section that is to be lighted on the lower surface of a TPU-made base sheet. A film with a refractive index of light lower than that of the base sheet is disposed beneath the lower surface of the base sheet in a manner that the uneven section is embedded in the film. Besides, an adhesive layer is disposed beneath the film so as to hold a movable contact. The movable contact unit structured above is effectively employed for a lighted panel switch capable of reducing loss in amount of light and providing the section that is to be lighted with required illuminance.Type: ApplicationFiled: December 10, 2008Publication date: June 11, 2009Inventors: Naoki TATEHATA, Tsutomu Aisaka, Yousuke Chikahisa
-
Patent number: 7542221Abstract: A lens unit includes a first lens (2) and a second lens (3) housed in a holder (1) which may improve aberration. The first lens (2) is cylindrical having a top that functions as a lens (2a), and the second lens (3) is pressed into the cylindrical portion (2b) of the first lens (2) having a top in such a manner that the inner periphery of the cylindrical portion (2b) of the first lens (2) is pressed by the outer periphery of the second lens (3).Type: GrantFiled: December 22, 2004Date of Patent: June 2, 2009Assignee: Panasonic CorporationInventors: Kazunari Nishihara, Shigeo Furukawa, Toshinari Noda, Naoki Tatehata
-
Publication number: 20090133594Abstract: A light shielding part includes a slit provided between a first light guide body and a second light guide body, and an attenuation part which has unevenness formed by print and is additionally provided near end sides of the first light guide body and the second light guide body. The light shielding part can prevent light from being transmitted between the first light guide body and the second light guide body. With this configuration, when illumination parts of the first and second light guide bodies are illuminated, it is possible to illuminate the illumination parts of the first and second light guide bodies at different timings without the illumination part of one light guide body being illuminated with light leaked from the other light guide body.Type: ApplicationFiled: November 6, 2008Publication date: May 28, 2009Inventors: Naoki TATEHATA, Tsutomu Aisaka, Naoki Sera, Yousuke Chikahisa
-
Patent number: 7525084Abstract: An input device includes an input detection portion which enables detection of position inputs according to change of capacitance; a position detection portion which reads detection signals from the input detection portion and detects positions thereof; a light emitting portion placed near the input detecting portion; driving portion which drives the light emitting portion; a monitoring portion which monitors a driving voltage applied from the driving portion to the light emitting portion; and a control portion which controls a generation of pulse signals at times when the position detection portion reads the position inputs from the input detection portion, the generation of the times being based on the driving voltage monitored by the monitoring portion.Type: GrantFiled: April 6, 2007Date of Patent: April 28, 2009Assignee: Panasonic CorporationInventors: Norifumi Sata, Naoki Tatehata
-
Publication number: 20090095607Abstract: A switch of the present invention has a light guide part having optical transparency formed between a light emitting device, which is arranged at an end of a light guide sheet, and a lower surface of the end of the light guide sheet, so that the light from the light emitting device passes through the light guide part and sufficient light can be introduced into the inside of the light guide sheet from the lower surface of the end, whereby a switch capable of realizing bright and satisfactory illumination is obtained with a simple configuration.Type: ApplicationFiled: October 9, 2008Publication date: April 16, 2009Inventors: Naoki TATEHATA, Yousuke Chikahisa, Tsutomu Alsaka
-
Publication number: 20090083659Abstract: A planar image and a mark are displayed on a display having an outer periphery. A region is provided on the display. The region has a boundary distanced from the outer periphery of the display. The mark is moved with respect to the planar image on the display when the mark is positioned in the region. The planar image is scrolled in a direction directed from the region to the mark on the display when the mark is positioned at an outside of the region. This method allows the mark to be positioned efficiently.Type: ApplicationFiled: September 19, 2008Publication date: March 26, 2009Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Naoki Tatehata, Teruyuki Kimata
-
Publication number: 20090079695Abstract: A dial is displayed in display unit showing a plurality of menus, and a control unit connected to an operation unit and the display unit rotates the dial in response to the move of a finger on the operation unit, and thereby a desired menu is selected, and when selecting the menu shown in the display unit, while the finger is touching the operation unit, the dial is rotated by observing the display unit, so that the menu can be selected. Hence, it is not necessary to observe visually the operating position of the operation unit every time, and the input device capable of controlling various operations of an appliance by a simple manipulation can be obtained.Type: ApplicationFiled: September 23, 2008Publication date: March 26, 2009Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Naoki Tatehata, Teruyuki Kimata
-
Publication number: 20090033514Abstract: A remote controller includes a capacitive touch panel having flexibility, push switches beneath a lower surface of the capacitive touch panel, a control unit for detecting a position on an upper surface of the capacitive touch panel which is touched, and a transmitter for transmitting a first remote-control signal indicating the detected position and a second remote-control signal indicating the activating of the push switches. The remote controller is capable of remotely controlling various operations of an apparatus with a simple operation.Type: ApplicationFiled: July 28, 2008Publication date: February 5, 2009Inventors: Tsutomu Yamagiwa, Naoki Tatehata, Takaya Nakamura
-
Publication number: 20080314722Abstract: A movable contact assembly includes a movable contact having a dome shape, a base sheet contacting an upper surface of the movable contact, a columnar portion provided on an upper surface of the base sheet, and a light guide sheet provided on an upper surface of the columnar portion. The light guide sheet has a light-receiving surface for introducing light into the light guide sheet, and allows the introduced light to be emitted from an upper surface of the light guide sheet. The base sheet includes a dome portion having a concave lower surface, and a flat portion connected with an outer edge of the dome portion. The columnar portion is positioned on the upper surface of the dome portion away from the outer edge of the dome portion of the base sheet. This movable contact assembly provides a switch illuminating its upper surface and being activated easily with a preferable feeling.Type: ApplicationFiled: June 17, 2008Publication date: December 25, 2008Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Naoki Tatehata, Takefumi Inoue
-
Publication number: 20080309638Abstract: An input device comprises a wiring board having stationary contacts and a module unit placed on the wiring board. The module unit has a structure formed integrally with actuating key portions, movable contacts, cushioning members and protruding portions. The movable contacts are disposed under the actuating key portions, and actuated by a push-on operation of the actuating key portions. The cushioning members are disposed in a space between a lower surface of the actuating key portions and an upper surface of a movable contact retainer bearing the movable contacts to make the space shrinkable when subjected to the push-on operation whereas it maintains an uniform height when not subjected to the push-on operation. The protruding portions depress top center portions of the movable contacts. The input device includes switch elements, each comprising the movable contact and the stationary contact, and the switch element is actuated by the push-on operation on the actuating key portion.Type: ApplicationFiled: April 21, 2008Publication date: December 18, 2008Applicant: Matsushita Electric Industrial Co., Ltd.Inventor: Naoki Tatehata
-
Publication number: 20080302642Abstract: A movable contact point made of a thin conductive metal sheet in an approximate dome shape is attached to the lower surface of a transparent base sheet, and the base sheet is provided at the upper or the lower surface with a fluorescent layer in the location above the movable contact point. Since, in the make-up, light can be made available for illumination in many colors other than that generated from a light emitting device, a movable contact element, as well as a switch formed using the contact element, that offers various illuminating modes can be implemented in a simple structure.Type: ApplicationFiled: May 30, 2008Publication date: December 11, 2008Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Naoki Tatehata, Takefumi Inoue, Koji Tanabe, Yousuke Chikahisa
-
Publication number: 20080252614Abstract: A touch panel has a lower substrate, an upper substrate, and a polarizing plate. The upper substrate is stacked on the upper surface of the lower substrate, and the polarizing plate is stacked on the upper surface of the upper substrate. Lower conductive layers that are insulated from each other and arranged in a first direction are formed on the upper surface of the lower substrate. Upper conductive layers that are insulated from each other and arranged in the second direction perpendicular to the first direction are formed on the upper surface of the upper substrate.Type: ApplicationFiled: April 9, 2008Publication date: October 16, 2008Inventors: Naoki Tatehata, Kenichi Matsumoto