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Eiichi Nagasaka

USPTO Granted Patents = 11 (Patent Applications = 2)

EPO Patents = 4 (Patent Applications = 1)

Average Co-Inventor Count = 1.8

ph-index = 4

Forward Citations = 72(Granted Patents)

Location History:

Suwa, JP (1998)
Nagano-ken, JP (2003 - 2007)
Minowa-machi, JP (2000 - 2009)
Nagano, JP (2010)
Minowa, JP (2020 - 2023)

Company Filing History:

11 out of 33,404

Seiko Epson Corporation

Years Active: 1998-2025

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11 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12332605 - Electronically controlled mechanical timepiece (2025-06-17),

2. 11829108 - Timepiece part and timepiece (2023-11-28),

3. 11409244 - Timepiece part and timepiece (2022-08-09),

4. 10747178 - Mechanical component and timepiece (2020-08-18),

5. 7832924 - Timepiece (2010-11-16),

6. 7536779 - Method of manufacturing magnetic head (2009-05-26),

7. 7170826 - Multifunctional watch (2007-01-30),

8. 7031230 - Starter for electricmagnetic converter, and timepiece (2006-04-18),

9. 6603236 - Electronic timepiece (2003-08-05),

10. 6097675 - Electronically controlled mechanical timepiece (2000-08-01),

11. 5751091 - Piezoelectric power generator for a portable power supply unit and (1998-05-12),

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