1
Ryoichi Sado, Takekuni Okamoto, Shigeru Matumoto: Key-board switch unit. Shin Etsu Polymer, Hopgood Calimafde Kalil Blaustein & Judlowe, November 24, 1981: US04302648 (135 worldwide citation)

The invention provides a key-board switch unit used, for example, in pocketable electronic calculators comprising a base plate having at least one pair of switch electrodes and a covering pad made of an insulating rubber and provided with at least one contact member made of an electroconductive rubb ...


2
Manabu Sato, Shigeru Matumoto: Cassette loading device in a cassette tape recorder. Victor Company of Japan, Holman & Stern, February 7, 1978: US04072988 (9 worldwide citation)

In a cassette tape recorder having a loading space for accommodating a cassette loaded thereinto and having a capstan adapted to enter relatively into a capstan receiving opening in the cassette and to drive a tape within the cassette, a cassette loading device comprises a cassette holder for receiv ...


3
Shigeru Matumoto: Wheel balance measuring apparatus. Kokusai Keisokuki Kabushiki Kaisha, Kane Dalsimer Sullivan Kurucz Levy Eisele and Richard, January 24, 1995: US05383361 (8 worldwide citation)

A wheel balance measuring apparatus includes a frame, a hollow rim support shaft rotatably supported by the frame through a bearing, a lower rim mounted on the hollow rim support shaft, and an upper rim positioning above and confronting with the lower rim, so as to be shiftable along and rotatable a ...