Hitachi, Ltd.

Hitachi Global Storage Technologies Netherlands B.v.

Hitachi Consumer Electronics Co., Ltd.

Hitachi Maxell, Limited

Masayuki Ohki

Atsuhiko Urushihara

Yuhei Abe

Jun Furuya

Koji Suso

Hiroki Kitagawa

Takao Oosawa

Takashi Matsubara

Shigeyuki Itoh

Sho Nozue

Minoru Ikeda

Yukinobu Maruyama

Tadaaki Tomikawa

Kotaro Yamashita

Keiichi Ochi

Koji Hirata

Masahiko Yatsu

Takanori Hisada

Takeshi Hoshino

Yuta Kawaguchi

Atsutoshi Sato

Takeshi Minemoto

Shigeyuki Ito

Kazumasa Ueoka

Atsuhiko Urushibara

Shinji Matsumoto

Mikio Shiraishi

Atsushi Ishibashi

Kazuomi Kaneko

Yoshihiro Iwama

Takashi Yamamoto

Toshiyuki Utsuki

Masaki Takano

Toshiyuki Moriya

Hiroyuki Inoue

Takeshi Saito

Hidemi Yamada

Kaoru Harada

Shinichi Ishikuro

Tatsuo Murai

Masanori Takaji

Satoko Kojima

Hiroyuki Hanyu

Keiichi Shimada

Koji Mori

A projection display system includes a projection display unit and a member in a form of one of a windable screen, a white board and a notice board. The projection display unit projects an image light onto a projection plane of the member to display an image thereon. The projection display unit includes a light source, an image display element, a lighting optical system irradiating a beam of light from the light source on the image display element, and a projection optical system projecting the image light from the image display element toward the member. The projection optical system includes, in order toward the member from the image display element, a front lens group, and a reflecting mirror shaped to be axial-asymmetrical with respect to the optical axis.

Projection display system with two reflecting mirrors

A projection display system comprising a projection display unit including a light source, an image display element, a lighting optical system irradiating a beam of light on the image display element, and a projection optical system projecting an image light from the image display element toward a screen. The projection optical system including a lens group composed of a plurality of lens elements arranged in order toward the screen from the image display element and symmetrically with respect to an optical axis, and a reflecting mirror shaped to be axial-asymmetrical with respect to the optical axis. The projection display system further comprises a screen. The projection display unit projects the image light onto a projection plane of the screen to display an image.

Projection display system including lens group and reflecting mirror

Video projector

Television receiver

Housing for a storage device

A telephone for transferring electronic money between money cards has on the top thereof two card inlets of two internal card reader/writers, a display window, a ten-key set used to dial a telephone number or enter an amount of electronic money transaction, telephone function keys, and mode selection keys. It can be operated to transfer electronic money between two money cards inserted in the card inlets, or between a money card inserted in one of the card inlets and another money card linked through the telephone line, thereby enabling person-to-person, person-to-bank, and person-to-retailer transactions based on electronic money.

Telephone used for electronic money card transaction and method of operation of the same

Video camera with digital video disc player

IC card reader and writer

Growing community of inventors

Kokubunji, Japan

Masayuki Ohki