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Takahiko Ishiwatari

Canon Inc.

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Publication

Featured researches published by Takahiko Ishiwatari.

IEEE Translation Journal on Magnetics in Japan | 1987

Aging Properties of Amorphous GdTbFeCo Magnetic Films and the Effect of Other Elements Added to Them

Masaaki Matsushima; Hiroyoshi Kishi; Takahiko Ishiwatari; Hisaaki Kawade

Tests on adding B, Bi, Al, Cr, Sm, and Cu to GdTbFeCo amorphous films revealed that B tends to reduce film deterioration and the Kerr rotation angle (¿K). Cu or small amounts of Sm lowered the amount of coercive force (Hc) deterioration, but ¿K showed no substantial change. Cr had a larger effect than Sm, and also exhibited the smallest decrease in ¿K (to 73 percent of the original value after 100 h). The addition of Cr also lowered the Curie temperature as much as 70°C at 3.6 area%.

Archive | 1988

Luminescing member, process for preparation thereof, and electroluminescent device employing same

Hiroshi Takagi; Kazuaki Ohmi; Masao Sugata; Hisanori Tsuda; Takahiko Ishiwatari

Archive | 1985

Optical recording medium which includes a corrosion resistant film of a mixture of a carbide and a nitride

Takahiko Ishiwatari; Hiroyoshi Kishi; Hisaaki Kawade; Masaaki Matsushima; Mitsuharu Sawamura; Kazuoki Honguu

Archive | 1989

Photoelectron beam converting device and method of driving the same

Mamoru Miyawaki; Yukio Masuda; Ryuichi Arai; Nobutoshi Mizusawa; Takahiko Ishiwatari; Hitoshi Oda

Archive | 1992

Tracking error signal detecting apparatus using an electron beam and apparatus for effecting recording/reproduction of information by the utilization of a plurality of electron beams

Nobutoshi Mizasawa; Takahiko Ishiwatari; Ryuichi Arai; Mamoru Miyawaki; Yukio Masuda; Hitoshi Oda

Archive | 1988

Electron beam information exchange apparatus with converting light signals

Mamoru Miyawaki; Yukio Masuda; Ryuichi Arai; Nobutoshi Mizusawa; Takahiko Ishiwatari; Masahiko Okunuki

Archive | 1987

Electron beam information exchange apparatus

Mamoru Miyawaki; Yukio Masuda; Ryuichi Arai; Nobutoshi Mizusawa; Takahiko Ishiwatari; Masahiko Okunuki

Archive | 1988

Lumineszentes material, verfahren zur herstellung desselben und dasselbe verwendende elektrolumineszente vorrichtung. Luminescent material process for producing the same and the same electroluminescent device used.

Hiroshi Takagi; Kazuaki Ohmi; Masao Sugata; Hisanori Tsuda; Takahiko Ishiwatari

Archive | 1988

Luminescent material process for producing the same and use the same electroluminescent device.

Hiroshi Takagi; Kazuaki Ohmi; Masao Sugata; Hisanori Tsuda; Takahiko Ishiwatari

Archive | 1987

Informations-Übertragungseinrichtung unter Verwendung von Elektronenstrahlen. Information transmission means using electron beams.

Mamoru Miyawaki; Yukio Masuda; Ryuichi Arai; Nobutoshi Mizusawa; Takahiko Ishiwatari; Masahiko Okunuki

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Mamoru Miyawaki

Canon Inc.

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Ryuichi Arai

Canon Inc.

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Yukio Masuda

Canon Inc.

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Hiroyoshi Kishi

Canon Inc.

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Hisaaki Kawade

Canon Inc.

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Masaaki Matsushima

Canon Inc.

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Nobutoshi Mizusawa

Canon Inc.

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Masahiko Okunuki

Canon Inc.

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Hiroshi Takagi

Canon Inc.

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Hisanori Tsuda

Canon Inc.

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