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Shigeo Okayama

USPTO Granted Patents = 3

Average Co-Inventor Count = 1.7

ph-index = 3

Forward Citations = 34(Granted Patents)

Location History:

Mitaka, JA (1978)
Tsukuba, JP (1994 - 1996)

Company Filing History:

Agency of Industrial Science and Technology

Ministry of International Trade & Industry

where one patent can have more than one assignee

Years Active: 1978-1996

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3 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5493125 - Charged beam apparatus (1996-02-20),

2. 5298757 - Lens for charged particle beam (1994-03-29),

3. 4075488 - Pattern forming apparatus using quadrupole lenses (1978-02-21),

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