Canon Kabushiki Kaisha

Yukuo Nishimura

Masahiro Haruta

Ken Eguchi

Takashi Nakagiri

Hiroshi Matsuda

Yoshinori Tomida

Yutaka Hirai

Haruki Kawada

Hirohide Munakata

Toshihiko Miyazaki

Kenji Saito

Yasushi Takatori

Kunihiro Sakai

Toshitami Hara

Yoshiaki Shirato

Satoshi Yuasa

Michiko Takahashi

Yoko Yoshinaga

Toshiaki Kimura

Kazuo Minoura

Kazuhiko Matsuoka

Takeshi Baba

Masayuki Usui

Takashi Hamamoto

Atsushi Someya

Kenji Saitoh

Kunitaka Ozawa

Hiroshi Takagi

Eigo Kawakami

Nobutoshi Mizusawa

Kiyoshi Takimoto

Noritaka Mochizuki

Etsuko Sugawa

Takashi Noma

Toshiaki Asano

Mitsunobu Nakazawa

Yoko Kuwae

Michiko Tanaka

Mamoru Miyawaki

Takashi Miyazaki

Noriyuki Nose

Shigeyuki Matsumoto

Hiroyuki Sugata

Yuko Suga

Masakazu Ozawa

Kunio Watanabe

Katsuhiko Nishide

Yuko Miyajima

Kazuyo Matsumoto

An ink jet recording method includes the steps of providing an ink jet recording head having a plurality of discharge openings for discharging ink, a plurality of liquid passageways for holding ink and a plurality of heat generating members. Each of the heat generating members corresponds to a liquid passageway and each heat generating member has a pair of electrodes for driving the heat generating member individually and the electrodes and corresponding heat generating member form a U-shaped wiring portion. The recording head may be manufactured using a cutting process. A voltage is applied to selected pairs of electrodes for driving selected heat generating members individually for providing thermal energy to the ink in the liquid passageway for abruptly forming a bubble and discharging ink from the discharge opening and recording on a recording medium.

Ink jet recording apparatus and method using ink jet head having u-shaped wiring

Ink jet recording apparatus and method using ink jet head having

An ink jet recording head comprising a plurality of discharge openings for discharging ink, a plurality of liquid passageways for holding ink and a plurality of heat generating members. Each of the heat generating members corresponds to a liquid passageway for providing thermal energy to the ink in the liquid passageway for abruptly forming a bubble for discharging ink from the discharge opening. Each heat generating member has a pair of electrodes for driving the heat generating member individually and the electrodes and corresponding heat generating member form a U-shaped wiring portion. The recording head may be manufactured using a cutting process.

Ink jet recording head formed by cutting process

An optical device is provided which comprises a liquid layer containing a liquid-absorbable and releasable polymer that absorbs and releases a liquid under thermal action.

Optical device

A medium for image formation which comprises a monomolecular film or monomolecular built-up film of a metal chelate compound and a process for image formation which comprises (1) manipulating the adsorption of a gas on a metal chelate compound and the desorption of the gas therefrom or (2) reducing metal ions in molecules of a metal chelate compound.

Medium and process for image formation

An optical recording medium is provided which comprises a diacetylene derivative compound and at least one compound selected from the group consisting of azulenium salt compounds, pyrylium dyes, diene compounds, croconic methines, and polymethine compounds. An optical recording method is also provided which comprises a step of writing by irradiating with a radiation ray corresponding to a recording information an optical recording medium comprising a polydiacetylene derivative compound and a compound selected from the above-mentioned group.

Optical recording medium and optical recording method

A biocatalyst such as an enzyme or microbe is immobilized in a polymer gel having a phase transition temperature such that it is capable of reversibly swelling and shrinking by a change in temperature. By lowering the temperature, the polymer gel is caused to swell and a biocatalyst is absorbed therein and by raising the temperature, the polymer gel is caused to shrink and immobilize the biocatalyst. The biocatalyst may then be released by cooling the polymer to cause it to swell. Only a portion of the polymer gel may be subjected to temperature change to immobilize the biocatalyst only in a desired portion.

Biocatalyst immobilization with a reversibly swelling and shrinking

An image forming device is provided which comprises an image forming layer containing molecules of an organic compound capable of phase transition, and functional molecules such as those of a photochromic compound. An image forming process is also provided which employs the above-mentioned device.

Image forming device

An image forming medium is provided which has an image forming layer comprising a monomolecular film of a diacetylene derivative compound or its built-up film and a radiation absorbing layer. The diacetylene derivative compound may be polymeric. An image forming device employing the image forming medium is also provided.

Image recording medium comprising a diacetylene derivative compound film

A film forming device includes an optical device which has a light source, and a first optical system for projecting light beams split by a light splitting device. The light splitting device and the optical system steadily maintain the intensity center of the light beam projected onto a detecting surface of a light detector at an invariable position without positional fluctuation independently of fluctuation of an emitting angle to a thin film of the light source.

Device for measuring light absorption characteristics of a thin film

An optical element comprises a gel layer exhibiting a light scattering property when heated and exhibiting transparency when cooled, and the gel layer is sandwiched between a transparent substrate and a transparent protective plate.

Optical element and device using same

An optical recording device and an information memorizing device utilizing the same are provided. The optical recording device comprises an A-layer comprising a chromogenic compound which is usually colorless or pale colored, a B-layer comprising an auxochromic compound capable of making said chromogenic compound form color through contact with said chromogenic compound, and a light-absorbing layer, at least one of the three layers being constituted of a monomolecular film or a built-up film thereof.

Optical recording device

A recording method is provided which comprises irradiating a recording medium having a recording layer containing a diacetylene derivative compound with a laser beam having a wavelength of 420 to 800 nm according to an input information to allow irradiated portions of the recording medium to cause a color change and thereby to conduct recording. A recording medium for the recording method is also provided.

Recording method and recording medium

An optical recording-reproducing method comprising the step of irradiating a radiation for polymerization on an optical recording medium having a recording layer containing at least one selected from the group consisting of azulenium salt compounds, pyrylium dyes, diene compounds, croconic methine dyes and polymethine compounds (hereinafter called the group B) and a diacetylene derivative compound; the step of irradiating a radiation corresponding to a recording information to thereby change the color at the irradiated portion of the recording layer; and the step of reading the recorded information by irradiating a reading light with a shorter wavelength than said radiation on said recording layer. Also, an optical recording-reproducing device utilizes the above-mentioned method.

Optical recording-reproducing method and device by using the same

An optical element comprised a pair of plates between which an optical modulation liquid layer is sandwiched, the optical modulation liquid layer exhibiting a light scattering property caused by suspension of fine particle polymer when not heated and exhibiting transparency caused by dissolution of fine particle polymer when heated, the change of such light scattering property to transparency being reversible.

Optical element

Growing community of inventors

Sagamihara, Japan

Yukuo Nishimura