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Dive into the research topics where Takeshi Nagai is active.

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Featured researches published by Takeshi Nagai.


Thin Solid Films | 1976

Structure and mechanical properties of r.f. sputtered SiC films

Kiyotaka Wasa; Takeshi Nagai; Shigeru Hayakawa

Amorphous and polycrystalline SiC films were prepared on glass, sapphire and silicon substrates by r.f. sputtering of a SiC cathode in argon. From evaluation of their mechanical properties, it was found that the films have a Vickers hardness of 4000 kg mm−2, similar to bulk SiC, and can be used to make hard surface coatings due to their high wear resistance. Mixed carbide (Si, B)C films prepared by r.f. sputtering exhibit a Vickers hardness of 4500 kg mm−2 and are also usable for hard coatings.


Archive | 1982

Thin film thermistor

Takeshi Nagai; Kazushi Yamamoto; Ikuo Kobayashi


Archive | 1983

Ultrasonic liquid ejecting unit and method for making same

Kazushi Yamamoto; Takeshi Nagai; Nobuyuki Hirai; Shunichiro Mori


Archive | 1989

Cooking oven having function to automatically clean soils attached to inner walls thereof

Takeshi Nagai; Hiroshi Fukuda; Masahiko Itoh; Takao Shitaya


Archive | 2004

Pressure-sensitive sensor, object detecting device, and opening-closing device

Hiroyuki Ogino; Naofumi Nakatani; Koji Yoshino; Takeshi Nagai; Narutoshi Kanazawa; Masahiko Ito; Yuko Fujii


Archive | 1980

Method for making a carbide thin film thermistor

Takeshi Nagai; Kazushi Yamamoto; Ikuo Kobayashi


Archive | 1999

Piezoelectric pressure sensor

Masahiko Ito; Takeshi Nagai; Yuko Fujii; Hiroyuki Ogino


Archive | 1981

Infrared radiative body and a method for making the same

Tadashi Hikino; Ikuo Kobayashi; Takeshi Nagai


Archive | 1975

STYLUS FOR CAPACITIVE VIDEODISC

Fumio Hosomi; Kiyotaka Wasa; Shigeru Eayakawa; Takeshi Nagai


Archive | 1989

High temperature SiC thin film thermistor

Takeshi Nagai; Masahiko Itoh

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Ikuo Kobayashi

National Archives and Records Administration

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Kazushi Yamamoto

National Archives and Records Administration

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