Canon Kabushiki Kaisha

Kunio Satomi

Masahiro Haruta

Yasushi Takeuchi

Tetsuo Hasegawa

Masashi Kitani

Haruo Uehara

Mitsunobu Nakazawa

Tatsuo Miyamae

Hitoshi Touma

Shigeo Kikuchi

Yoshiaki Araki

An area array semiconductor device is constituted of a circuit wiring substrate having a circuit wiring and a semiconductor chip mounted on the circuit wiring substrate and electrically connected with the circuit wiring. A sealing layer composed of a sealing resin is formed such that the sealing layer has an angle of 30&#xb0; to 60&#xb0; with respect to a side of the circuit wiring substrate.

Area array semiconductor device and electronic circuit board utilizing the same

To securely clean dirty material deposited on ends of board electrical-test probes used in a board test device for executing tests including an incircuit test by a cleaning job executed once, the extreme ends of the contact pins of the board electrical-test probes are pierced through an elastic sheet molded by dispersing fine metal oxide particles dispersed therein in a specific weight percentage amount and then pulled out from the elastic sheet.

Cleaning method and cleaning device and cleaning tool for board

Internal reflection of an optical glass is suppressed by applying a coating material comprising a material selected from coal tar and coal tar pitch and a resin selected from vinylidene chloride series copolymers and halogenated epoxy resins.

Internal reflection suppressing coating material for optical glass

Graphite fluoride is added to a developer for developing electrostatic latent images.

Developer for developing electrostatic latent images

An image recording member of a type, wherein a recording layer comprising graphite fluoride and a fluorine acceptor is formed on a supporting body or substrate, and an image is recorded on such recording member by applying energy thereto.

Growing community of inventors

Kanagawa, Japan

Kunio Satomi