LexDanaLexDanabeta
Inventor

Shigeo Okayama

Inventor
Tsukuba, JP

Overview

4→
Patents
1978–1996
Patent span
Electricity
Primary field (CPC H)

Patents· 4 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H01Jprimary
H01JElectric discharge tubes or discharge lamps50%
B82YSpecific uses or applications of nanostructures17%
G01QScanning-probe techniques or apparatus17%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests17%
PatentTitleYear
5,493,125'Charged beam apparatus'19965,298,757'Lens for charged particle beam'19944,902,892'Method of measurement by scanning tunneling microscope'19904,075,488'Pattern forming apparatus using quadrupole lenses'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978–1996Patents assigned to AGENCY IND SCIENCE TECHN (4)· patent assignee history
1978Based in Mitaka, JP· patent location history
1990Patents assigned to SEIKO INSTR INC (1)· patent assignee history
1990Based in Ibaragi, JP· patent location history
1994Patents assigned to MITI MINI INT TRADE & IND (1)· patent assignee history
1994–1996Based in Tsukuba, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
AGENCY IND SCIENCE TECHN41978–1996
MITI MINI INT TRADE & IND11994
SEIKO INSTR INC11990
Locations
LocationPatentsSpan
Tsukuba, JP21994–1996
Ibaragi, JP11990
Mitaka, JP11978