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Inventor

Yoshio Koyama

Inventor
Chiba, JP

Overview

4→
Patents
2000–2003
Patent span
Physics
Primary field (CPC G)

Patents· 4 as inventor

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

G04Cprimary
G04CElectromechanical clocks or watches100%
PatentTitleYear
6,584,040'Electronic timepiece'20036,582,118'Electronic timepiece having transmission wheel rotational position detecting apparatus'20036,088,302'Electronic timepiece'20006,088,300'Calendar electronic timepiece'2000

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2000–2003Patents assigned to SEIKO INSTR INC (4)· patent assignee history
2000–2003Based in Chiba, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SEIKO INSTR INC42000–2003
Locations
LocationPatentsSpan
Chiba, JP42000–2003