Ushio Denki Kabushiki Kaisha

Honda Motor Co., Ltd.

Renesas Electronics Corporation

Hiroshi Sugahara

Kenzo Kai

Minoru Asao

Yukihiro Morimoto

Yukiharu Tagawa

Toyohiko Kumada

Nobuyuki Hishinuma

Toshiyuki Ohashi

Shigenori Nozawa

Tetuya Torikai

Masashi Dan

Satoshi Kume

Mitsuaki Mitama

Katuhiko Miyahara

Yutaka Yamanizu

Katsuhiko Miahara

A substrate supporting film to be etched is held on a rotating stage. Ultraviolet light having a wavelength of 200 nm or shorter radiated from first lamps irradiates the film in air, thereby removing an organic coatings from the film and making the surface of the film hydrophilic. A chemical solution is applied to the hydrophilic film while rotating the substrate. Ultraviolet light having a wavelength longer than 200 nm is radiated from second lamps and onto the film through the chemical solution.

Wet etching method using ultraviolet-light and method of manufacturing semiconductor device

There is provided a method of manufacturing hydrophilic carbon nanotubes, which is capable of imparting hydrophilicity without damaging the surface of the carbon nanotubes. By irradiating carbon nanotubeswith ultraviolet rayhydrophilic functional group(s) are introduced into the surface of carbon nanotubesHydrophilicity is imparted to the carbon nanotubes to such an extent that a contact angle of water is in the range of less than 130&#xb0;. Ultraviolet rayis a far ultraviolet ray having a wavelength ranging from 1 to 190 nm. The irradiation with ultraviolet rayis conducted in the presence of oxygen and hydrogen or in the presence of ozone and hydrogen. The end part(s) of carbon nanotubesis opened by the irradiation with ultraviolet ray

Method of manufacturing hydrophilic carbon nanotubes

In order to provide an incandescent lamp in which an unlit state of the lamp caused by a hang-out of the coil as well as a short lifetime thereof are prevented using a simple construction and its lifetime in practical application is long, a coil ( )-like filament ( ) is held in a bulb ( ) by upholding parts ( &prime;) with an axis of the coil ( ) being oriented in a vertical direction, and a coil pitch of the coil ( ) at the upper part thereof is made narrow as compared with that of the lower part of the filament ( ). Or the filament ( ) of the incandescent lamp ( ) is constituted by the coil ( ) of a conical shape or that of a frustum of a circular cone, and the filament is arranged within the bulb ( ) in such a way that it may be held by upholding parts ( &prime;) with an axis of the coil ( ) of the filament ( ) being oriented in a vertical direction and the one end of the oil ( ) having a smaller diameter being positioned upward.

Coil filament structure for an incandescent lamp

In order to prevent a short lifetime of a lamp experiencing an extending downward of the coil under application stress when the coil is in a vertical configuration, there is provided an incandescent lamp in which a filament is stored in a bulb, and the filament is arranged in a vertical orientation and held by supporting element, where the filament is composed of a double coil in which a primary coil having a strand wound thereon is doubly wound, and the primary coil is more closely wound at the upper part of the filament than at the lower part of the filament.

Incandescent lamp filament

The object of the invention to devise an electrical insertion body for a tube lamp in which sealing bodies of an electrically conductive inorganic material component and a dielectric inorganic material component and upholding parts of the electrodes are attached securely to one another by sintering, and in which neither leaks nor falling out of the upholding parts of the electrodes occur. The object is achieved as claimed in the invention, in an electrical insertion body for a tube lamp in which an upholding part of the electrode is inserted into the center opening of a respective sealing body of a functional gradient material for a tube lamp, in that in the boundary areas between the sealing bodies and the upholding parts of the electrodes one diffusion area at a time is formed, in which the electrically conductive inorganic material component of the sealing body, the metallic component of the upholding part of the electrode and a diffusion accelerator are present diffused into one another, which at the sintering temperature accelerates diffusion of the electrically conductive inorganic material component of the sealing body and of the metallic component of the upholding part of the electrode and that in this way the upholding part of the electrode and the electrically conductive inorganic material component of the sealing body are joined to one another.

Electricity lead-in body for bulb and method for manufacturing the same

Growing community of inventors

Himeji, Japan

Hiroshi Sugahara