Toyoda Gosei Co., Ltd.

Other

Nippondenso Co., Ltd.

Takemasa Yasukawa

Tadanobu Iwasa

Hiroshi Sugita

Masanori Aritake

Osamu Yamanaka

Makoto Tamaki

Hisao Yamaguchi

Hideki Omoya

Yoshinobu Suehiro

Yuji Takahashi

Hideaki Kato

Akira Mabuchi

Yukio Yoshikawa

Atsuo Hirano

Hiroshi Sugihara

Kiyotaka Teshima

Akihiko Suzuki

Hideyuki Nakano

Satoshi Honda

Tsutomu Yokota

Toshiya Uemura

Shota Shimonishi

Kenichi Watanabe

Akihiro Misawa

Tetsushi Hiramitsu

Keizo Hayashi

Koichi Ota

Kazushi Noda

Kanae Matsumura

Yoshio Sano

Kazuhiro Sakai

Hideki Mori

Tetsuo Tanabe

Masanori Midooka

Masato Kawamura

Koji Tsukagoshi

Yasuji Ozaki

A purple LED is fixed onto lead frames in the cup of a frame using a mount, and the purple LED is sealed by filling a sealant of transparent resin into the cup. Red/green/blue phosphors that absorb a light emitted by the purple LED and emit lights having red, green, blue wavelengths different from the wavelength of this absorbed light are mixed into the sealant. A yellow phosphor that absorbs a light emitted by the purple LED and emits a light having a yellow wavelength different from the wavelength of this absorbed light is additionally mixed into the sealant in such a white light emitting device.

White light emitting device

A light source device has a light shielding member having an aperture, a light source arranged on one side of the light shielding member, and a converging member arranged relatively with respect to the light source and the light source to thereby converge light emitted from the light source in the aperture or in a vicinity of the aperture. Another type of light source device has a single light source, and a converging member for converging light from the light source to thereby distribute the light to at least two points. Still another type of light source device has a light source, and a reflecting mirror arranged to enclose a side of a light emission direction of the light source, the reflecting mirror reflecting light emitted from the light source in a direction except the light source so that the light is radiated outside.

Light source device

A group III nitride compound semiconductor light-emitting element of a flip chip bonding type for emitting light with a wavelength not longer than 400 nm is coupled to a Zener diode, and the light-emitting element and the Zener diode coupled to each other are sealed with a metal casing having a window.

Semiconductor light-emitting device

A light-emitting element is mounted in a cup-like portion formed on a substrate and a case. The cup-like portion is filled with a sealing member made of a light-transmissible resin. A layer made of a material having a refractive index lower than that of the sealing member is provided between the sealing member and a surface of the case.

Light-emitting device

A sealing member for a short-wavelength light emitting element comprises a main agent and a curing agent. The main agent comprises a first component of an alicyclic epoxy produced by hydrogenating an aromatic epoxy, preferably a bisphenol A epoxy, and a second component of an alicyclic epoxy having a lower molecular weight than the first component. The mixing amount of the second component is not less than 10% by weight and less than 30% by weight based on the main agent.

Light emitting apparatus

In a light-emitting diode, a substantially square flip chip is placed on a substantially square sub-mount at a position and posture which are obtained through superposition of a center point and center axis of the flip chip on a center point and center axis of the sub-mount and subsequent rotation of the flip chip about the center points by approximately 45&deg;. Therefore, triangular exposed regions are formed on the sub-mount, in which two lead electrodes for the flip chip can be formed. As a result, the flip chip can be placed on a lead frame such that the center axis of the flip chip coincides with the center axis of a parabola of the lead frame. Further, the sub-mount is formed of a semiconductor substrate, and a diode for over-voltage protection is formed within the semiconductor substrate. Therefore, breakage of the light-emitting diode due to excessive voltage can be prevented.

Light-emitting diode

After a light-emitting element exhibiting an emission peak wavelength in a wavelength range of not longer than 500 nm is mounted into a cup-like portion of a base member, the cup-like portion is filled with epoxy group-containing silicone rubber. An aromatic polyamide-based resin is used as a reflector material.

An LED display device has an indicator having a housing. The housing has at least one incident portion which receives light from at least one LED. The incident portion has a reflection surface at its inside surface. LEDs emit light from one side or one longitudinal end of the incident portion. A refraction plate may be provided to direct emission of the incident light for viewing by a user.

Light-driven display device

A vehicle display device such as a speed meter including indicators, many segments illuminated in two or more colors by plural LEDs and an indicator control circuit. The indicators dispose the segments so as to display a variable such as a car speed in a bar graph or in the form of a number. The indicator control circuit displays the variable by controlling the lighting of the LEDs and changes an emitted light color of indication based on a fixed color changing reference value in accordance with a value of the variable. The control circuit controls a duty ratio of a supply current or a current value in a predetermined set value range determined on the basis of the color changing reference value. Namely, brightness of the emitted light color before a color change is gradually decreased, while brightness of the emitted light color after the color change is gradually increased.

Vehicle display device

An LED display device having an LED array for a meter on a printed circuit board. A diffusing radiation lens array is disposed facing the LED array. A cover lens is overlapped on the lens array. The cover lens transmits LED light which passed through the lens array. The cover lens has at least a scale mark, a character and a sign. A sheet is interposed between the lens array and the cover lens. The sheet limits radiation of predetermined diffused light from the lens array while partially transmitting the diffused light. The cover lens has a scale mark dent and a character dent formed on its rear interior surface, and displays the scale mark and character by means of an LED light from another LED array.

LED display device

A rubber layered structure used for a weather strip or a glass run, which includes an EPDM rubber base and an ornamental surface layer or a functional surface layer for enhancing slidability of a door glass. An ornamental or functional surface layer is stuck to an EPDM rubber base with a laminated film. The laminated film includes a first layer of an olefin resin with polar functional groups and a second layer of a polar thermoplastic resin. The first layer, which includes a non-polar olefin resin and polar functional groups, adheres to both the EPDM rubber base and the second layer of a polar resin such as polyester. The second layer securely adheres to the surface layer.

Manufacturing process of rubber layered structure

Rubber layered structure and manufacturing process therefor

A weather strip to be attached along a belt line of a door of a motor vehicle for wiping an outer surface of a door glass when the door glass is raised and lowered. The weather strip has a base portion to be attached along the belt line of a door outer panel, a lip extending from the base portion obliquely upwardly toward the door glass so that an end of the lip contacts the outer surface of the door glass, and a blade extending from the base portion under the lip in a direction of the outer surface of the door glass. An end of the blade contacts the outer surface of the door glass. When the door glass is raised and lowered, the blade turns upwardly and downwardly, thereby wiping the outer surface of the door glass. The blade has a projecting portion at an upper surface thereof for pushing up a lower surface of the lip and detaching the end of the lip from the outer surface of the door glass when the blade turns upwardly whereby water on the outer surface of the door glass can be completely wiped by the blade when the door glass is raised.

Weather strip for motor vehicle

Growing community of inventors

Nishikasugai-gun, Japan

Takemasa Yasukawa