Canon Kabushiki Kaisha

Ken Eguchi

Haruki Kawada

Hiroshi Matsuda

Yukuo Nishimura

Kunihiro Sakai

Takashi Nakagiri

Kiyoshi Takimoto

Yoshinori Tomida

Toshihiko Miyazaki

Hisaaki Kawade

Kenji Saito

Yoshihiro Yanagisawa

Yuko Morikawa

Toshihiko Takeda

Masahiro Haruta

Yutaka Hirai

Toshiaki Kimura

Hideyuki Kawagishi

Kenji Saitoh

Toru Nakakubo

Toshimitsu Kawase

Mitsuhiro Watanabe

Etsuro Kishi

Osamu Takamatsu

Yuji Kasanuki

Masaki Kuribayashi

Takashi Hamamoto

Koichi Sato

Hiroyasu Nose

Minoru Yoshii

Akihiko Yamano

Eigo Kawakami

Etsuko Sugawa

Tsutomu Ikeda

Hirohide Munakata

Keisuke Yamamoto

Katsunori Hatanaka

Takahiro Oguchi

Hideo Kato

Takayuki Teshima

Ryuji Higashi

Masahiro Tagawa

Toshiharu Uchimi

Hitoshi Toma

Junji Ohyama

Masahiko Miyamoto

Otto Albrecht

Suomi Kurihara

Taichi Sugimoto

Horoshi Matsuda

Toshimitsu Kawasa

A fuel cell system that includes a cell unit comprising a fuel cell, a fuel tank unit for storing a fuel to be supplied to the cell unit, and a fuel feed unit for supplying the fuel from the fuel tank unit to the cell unit in a thin housing having a substantially rectangular parallelepiped shape. The fuel tank unit, the fuel feed unit, and the cell unit are located in a specific order in one direction between two opposite ends of the housing. The fuel tank unit includes a valve, which supplies fuel to the fuel feed unit and opens to supply the fuel to the fuel feed unit only when the fuel tank unit is mounted. The fuel feed unit connects sides of the fuel tank unit and the cell unit that face each other and reduces a pressure of a gaseous fuel supplied from the fuel tank unit.

Fuel cell system with a cell unit and fuel tank unit in a housing and electronic device

A fuel cell system, which is mounted and used for a portable and small electric device, comprises a cell unit () comprising one or more fuel cells (), a fuel tank unit () for storing a fuel to be supplied to the cell unit (), a fuel feed unit () for supplying the fuel of the fuel tank unit () to the cell unit (), and an opening () for supplying an oxidizer gas to the cell unit (), in a thin housing () having a substantially rectangular parallelepiped shape, wherein the fuel tank unit (), fuel feed unit () and cell unit () are located in one direction between two opposite short side faces () of the housing (). A large-capacity and high-output small fuel cell system is provided by such a structure.

Fuel battery and electric device

There is provided a toner having favourable development characteristics and favourable stability and a method for production thereof. The toner comprises at least a graft copolymer and a coloring material, wherein the graft copolymer is formed by graft polymerization of a polymerizable monomer with a block copolymer having a polymerizable functional group on a side chain. The method for producing the toner has a step of subjecting a reaction mixture comprising at least a block copolymer having a polymerizable functional group in a side chain and having a polyalkenyl ether repeating unit structure, a polymerizable monomer, and a coloring material to suspension polymerization or emulsion polymerization, to produce a graft copolymer in which a polymer of the polymerizable monomer is grafted to the side chain of the block copolymer.

Toner, method for producing the same, image formation method and image formation apparatus

A fuel cell system is provided which has a humidifying means () for directly humidifying a polymer electrolyte membrane () that serves as an ionic conductor. As the humidifying means (), means is employed which has a water holding unit () comprised of a water-absorbing material and located in contact with the polymer electrolyte membrane to directly humidify the polymer electrolyte membrane () by utilizing a capillary action and further has a humidification water passage () comprised of a hydrophilic material and provided in the polymer electrolyte membrane so as to be connected to the water holding unit () to humidify the polymer electrolyte membrane () rapidly and uniformly. Such a constitution provides a fuel cell system that can directly humidify an ionic conductor.

Fuel cell and electric apparatus

A process for producing a colorant comprises the step of mixing a coloring material and a block copolymer in a flow channel of a microreactor to obtain a dispersion comprising a colorant as a dispersoid. The flow-mixing channel may have a cross-sectional area of not less than 0.5 mm, and the ratio of the total cross-sectional areas of flow channels connected with the flow-mixing channel to the cross-sectional area of the flow-mixing channel ranges from 0.01 to 0.1, and a rectangular cross-section having a ratio of a flow channel depth to a flow channel width of not less than 0.5.

Process for producing colorant dispersoid

An electrode substrate and a recording medium having a smooth surface with surface unevenness of 1 nm or less and a size of 1 &mgr;m&square; or more are disclosed. An electrode substrate and a recording medium having a concave-shaped groove for tracking on the surface, which groove has a depth which can detect of the tunnel current from the bottom thereof by a probe electrode for scanning the surface are also disclosed. Information processing devices equipped with the smooth recording medium, an electroconductive probe arranged approximate to the recording medium and a pulse voltage application circuit for recording are also disclosed.

Process for preparing an electrode substrate

An encoder includes an electrically conductive reference scale having surface steps formed at predetermined positions; an electrically conductive probe having a tip disposed opposed to the reference scale; wherein the reference scale and the probe are relatively movable in a direction different from the opposing direction of the tip of the probe and the reference scale; a portion for applying an electrical voltage to between the reference scale and the probe; a portion for detecting a change in a tunnel current between the reference scale and the probe, to between which the electric voltage is applied by the voltage applying portion at the time of the relative movement between the scale and the probe, the detecting portion detecting the change in the tunnel current when the probe passes a position opposed to a surface step of the reference scale; and portion for detecting the amount of the relative movement between the scale and probe, on the basis of the detection by the change detecting portion.

Two scanning probes information recording/reproducing system with one

A recording device, comprising a probe electrode, a recording medium having electric memory effect and a writing voltage applying unit for applying voltage onto the recording medium from the probe electrode, and a reproducing device comprising a probe electrode, a recording medium exhibiting electric memory effect or a recording medium recorded by energy irradiation, a voltage applying unit for applying voltage not exceeding the threshold value voltage giving rise to electric memory effect onto the recording medium from the probe electrode and a reading unit for reading the change in current quantity passing through the recording medium.

Recording device and reproduction device

A liquid crystal device is constituted by disposing a liquid crystal between a pair of substrates each having an electrode thereon and coated with a polymeric ion-conductive film and an organic electroconductive alignment film in this order or in reverse order. The alignment film may be provided with an electroconductivity selectively at parts thereof above the electrode so as to suppress occurrence of crosstalk between pixels. The above arrangements of the ion-conductive film and the alignment film are suitable for providing a practical liquid crystal device affording a high contrast and a moderate V-T characteristic advantageous for halftone display.

Liquid crystal device

Encoder for controlling measurements in the range of a few angstroms

A ferroelectric liquid crystal device is constituted by a pair of substrates each having thereon an electrode and an alignment film, and a ferroelectric liquid crystal disposed between the substrates. The alignment film on at least one substrate comprises laminated layers of at least two species of electroconductive polymers having mutually different optical band gaps Eq.sup.opt. The ferroelectric liquid crystal device can effectively remove undesirable reverse electric field effect even when a liquid crystal having a large spontaneous polarization is used, and exhibits little change in threshold characteristic with time.

Ferroelectric liquid crystal device

An information processor for performing at least one of recording information at a high density, reproducing and erasing information by applying the principle of a scanning tunnel microscope (STM) or an atomic force microscope (AFM) and an information processing method using the information processor. The information .processor is used with a recording medium comprising a recording layer having a characteristic of one of an insulator and a semiconductor. The processor includes a substrate electrode in the recording medium, at least one probe electrode disposed close to the recording medium, and at least one of a circuit for applying an information recording pulse voltage and a circuit for applying an information reproducing pulse voltage. A maximum difference in surface level of a 1.times.1 .mu.m surface region of the substrate electrode is 1 nm or less, and the radius of curvature of a tip of the probe electrode is in the range of 0.1 to 200 .mu.m. The processor further includes a device for controlling the distance between a surface of the recording medium and the tip of the probe electrode.

Information processor and method using the information processor

A liquid crystal device is constituted by disposing a liquid crystal between a pair of substrates each having an electrode thereon and coated with an alignment film. The problem of hysteresis or reverse electric field effect of the liquid crystal device is alleviated by composing the alignment film with an alignment material, such as a polyimide, and a polymeric electroconductive compound, such as polyaniline. An electroconductive protective layer may be disposed between the electrode and the alignment film. The alignment film may be provided with an electroconductivity selectively at parts thereof above the electrode so as to provide an improvement in prevention of crosstalk between pixels.

Ferroelectric liquid crystal device with electroconductive protective

A method for positioning an information processing head at a predetermined position on a recording medium includes detecting a predetermined magnetization pattern on a magnetic material having a predetermined positional relation to a recording region of the recording medium by a magnetization detector having a predetermined positional relation to the information processing head, generating a signal indicative of a relative position of the information processing head with respect to the recording medium based on a result of the detecting step and moving the information processing head and the recording medium relatively to position the information processing head at the predetermined position with respect to the recording medium based on the generated signal, and a process for forming a cantilever-type probe capable of indicating a magnitude of a magnetic force between the probe and a recording medium and capable of performing at least one of a recording operation and a reproducing operation on the recording medium.

Method for positioning an information processing head by detecting a

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Yokohama, Japan

Ken Eguchi