Seikosha Co., Ltd.

Sony Group Corporation

Director-general of Agency of Industrial Science and Technology

Mitsubishi Fuso and Bus Corporation

Nobuhiro Kondo

Hirokazu Ono

Masayuki Miyazaki

Yoshinori Takahashi

Takuya Hasegawa

Yoshinaka Takeda

Tetsu Tanaka

Tomoaki Takahashi

Toshio Matsumura

Minehiro Murata

Akira Yabe

Syohei Uchida

Hiroyuki Niino

Yoshinaga Takahashi

Yasuhiro Tsutsui

Daiki Kondo

Masayuki Miyazawa

A lens barrel includes a lens drive unit that moves a lens holder holding a lens in an optical axis direction, a locking mechanism that regulates movement of the lens holder at a movable end of the lens holder, and a control unit that performs, as a shift process for shifting the lens holder to a movement regulated state produced by the locking mechanism, control for moving the lens holder by using the lens drive unit to a position where movement regulation is achieved by the locking mechanism in a state where movement regulating force generated by the locking mechanism is reduced.

Lens barrel, control method, and imaging device

An engine control system includes an EGR devicewhich connects an exhaust passage Ex and an intake passage I and has an EGR valve; an intake throttle valveplaced in the intake passage I; and an engine control unit which is provided with an engine operation data calculator Aaccumulating mileages of a vehicle or an engine operation period, a fuel injection controller Acontrolling a fuel injection amount and a fuel injection timing, an EGR controller Acontrolling an opening of the EGR valve; a throttle valve controller Acontrolling an opening of the intake throttle valve; and an EGR passage cleaning controller Awhich delays a fuel injection timing Tn, increases an opening &#x3b2; g of the EGR valve, and reduces an opening &#x3b8; s of the intake throttle valve when the total mileage or the total operation period calculated by the engine operation data calculator becomes equal to a predetermined threshold.

Engine control system

A method of processing a photosensitive glass includes exposing. Photosensitive glass by radiation from a laser whose oscillation wavelength lies within the range of wavelengths of exposing light to which the glass responds. Then, the exposed portions 1c are thermally developed and etched. Since a laser beam propagates with a high rectilinearity, the front and rear surfaces of thick photosensitive glass can be exposed without producing dimensional errors. Therefore, the etching accuracy is improved. Especially, where the front and rear surfaces of photosensitive glass are etched, both surfaces can be processed so as to form the same shape in them accurately. In addition, because almost all the energy of the laser radiation is used for exposure of the photosensitive glass, the energy is not wasted and so the efficiency is high.

Method of processing photosensitive glass

A photosensitive glass processing method, and article made thereby, which makes it possible to facilitate the etch depth control, minimize the surface roughness of the etched surface, improve the operating efficiency in single-side etching process, and increase the yield includes a first exposure step, in which laser light is applied to the obverse side of photosensitive glass from above it through an exposure mask by using a pulsed laser that covers the sensitivity wavelength range of the photosensitive glass, thereby forming a first exposed portion, the energy intensity per pulse of laser light being set at 10 mJ/cm.sup.2, and the total exposure energy being set at 500 mJ/cm.sup.2 ; a second exposure step, in which laser light is applied to an end surface of the photosensitive glass through another exposure mask, thereby forming a second exposed portion, the energy intensity per pulse of laser light being set at 10 mJ/cm.sup.2, and the total exposure energy being set at 15,000 mJ/cm.sup.2, wherein the first exposed portion, which is crystallized by heat treatment, is easy to etch, while the second exposed portion, which is crystallized by the same heat treatment, is difficult to etch, and a groove is formed at the position of the first exposed portion.

Method of processing photosensitive glass with sections of differing

Method of processing a photosensitive glass used in the head of an ink jet printer, including the steps of exposing the glass by a XeCl excimer laser to write a desired pattern into the front surface of the glass, with the laser emitting plural pulses to the glass and the energy of each laser pulse being 1 to 50 mJ/cm.sup.2 such that the exposed portions which will become crystallized portions do not extend through the thickness of the glass; thermally developing the exposed portions to crystallize the exposed portions; and etching away the crystallized portions so that grooves are formed in the glass according to the exposing pattern.

Method of processing photosensitive glass with a pulsed laser to form

A magnetic recording device includes a magnetic latent image on a latent image carrier and a developing device for moving a magnetic recording color microcapsule onto the magnetic latent image carrier, the microcapsule including a colored material covered with an outer wall and a magnetic material disposed on the outer wall. A transfer device transfers the colored material in the microcapsule on the latent image carrier onto a recording medium as the magnetic material disposed on the outer wall of the microcapsule substantially remains attracted to the magnetic latent image. A demagnetizing device demagnetizes the magnetic latent image on the latent image carrier, and a cleaner cleans off from the latent image carrier the magnetic material which substantially remained attracted to the magnetic latent image when the colored material was transferred onto the recording medium.

Magnetic recording color microcapsule and a magnetic recording device

A magnetic recording device includes a movable body having a magnetic layer and an arrangement for writing a predetermined magnetic image on the movable body. A developing arrangement is controlled to blow a magnetic fluid onto the movable body in order to develop the magnetic fluid. The magnetic fluid is circulated except at times when the image is being developed by the magnetic fluid.

Magnetic recording device using magnetic fluid developing agent

A magnetic recording device includes a magnetic fluid having a surface, a body having a magnetic surface, an arrangement for forming a magnetic image on the magnetic surface, and an arrangement for moving the magnetic image with respect to the surface of the fluid, to attract the magnetic fluid thereto. A magnetic arrangement is provided to locally raise the surface of the fluid, i.e., to heap it up, so that the magnetic image only attracts magnetic fluid from the raised region thereof. The magnetic arrangement may be a permanent magnet or an electromagnet.

Magnetic recording device

In a method and device for providing a visible image on a magnetic layer, the layer having a magnetic image thereon, the magentic layer is moved at a distance spaced from the top surface of a body of a magnetic fluid. The distance is sufficiently small that magnetic fluid from said body can be attracted to contact portions of said magnetic layer having a magnetic image thereon, by magnetic attraction, while the fluid is not attracted to portions of the layer that do not have a magnetic image.

Growing community of inventors

Tokyo, Japan

Nobuhiro Kondo