Inventor · disambiguated record
Masao Mafune
Also filed as: MAFUNE MASAO · SASE MASAHIRO
8 granted patents·104 citations·filing 1978–2000
87Inventor score
Files withCITIZEN WATCH CO LTD8
Top patents by PatentIndex Score
8 records- 0185US6580665B1Electronic timepiece having power generating functionCITIZEN WATCH CO LTD·Filed 2000·Granted Jun 17, 2003·28 cites·27 claims
- 0275US5841738ADisplay unit structure for electronic deviceCITIZEN WATCH CO LTD·Filed 1996·Granted Nov 24, 1998·26 cites·10 claims
- 0348US6661743B1Electronic device with display sectionCITIZEN WATCH CO LTD·Filed 1998·Granted Dec 9, 2003·13 cites·19 claims
- 0445US4737941AWatch with hand in form of circular film and provided with electrostatic shielding deviceCITIZEN WATCH CO LTD·Filed 1987·Granted Apr 12, 1988·9 cites·22 claims
- 0541US5367505AWatch with dumb alarmCITIZEN WATCH CO LTD·Filed 1994·Granted Nov 22, 1994·9 cites·12 claims
- 0641US4267427AMethod of boring a hole through a magnet made of an intermetallic compoundCITIZEN WATCH CO LTD·Filed 1978·Granted May 12, 1981·5 cites·7 claims
- 0737US6181648B1Electronic watch equipped with solar cellCITIZEN WATCH CO LTD·Filed 1997·Granted Jan 30, 2001·8 cites·8 claims
- 0833US5126184AMolded part and mold for manufacturing the sameCITIZEN WATCH CO LTD·Filed 1990·Granted Jun 30, 1992·6 cites·5 claims
Join the waitlist — get patent alerts
Get an alert when Masao Mafune files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →