Eiichi Nagasaka

Person

Nagano-ken, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Timepiece part and timepiece
- Patent number 11,829,108
- Issue date Nov 28, 2023
- Seiko Epson Corporation
- Eiichi Nagasaka
- G04 - HOROLOGY
Information Patent Grant
Timepiece part and timepiece
- Patent number 11,409,244
- Issue date Aug 9, 2022
- Seiko Epson Corporation
- Eiichi Nagasaka
- G04 - HOROLOGY
Information Patent Grant
Timepiece
- Patent number 7,832,924
- Issue date Nov 16, 2010
- Seiko Epson Corporation
- Eiichi Nagasaka
- G04 - HOROLOGY
Information Patent Grant
Method of manufacturing magnetic head
- Patent number 7,536,779
- Issue date May 26, 2009
- Seiko Epson Corporation
- Tatsuo Hara
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Multifunctional watch
- Patent number 7,170,826
- Issue date Jan 30, 2007
- Seiko Epson Corporation
- Tsuneaki Furukawa
- G04 - HOROLOGY
Information Patent Grant
Starter for electricmagnetic converter, and timepiece
- Patent number 7,031,230
- Issue date Apr 18, 2006
- Seiko Epson Corporation
- Eiichi Nagasaka
- G04 - HOROLOGY
Information Patent Grant
Electronic timepiece
- Patent number 6,603,236
- Issue date Aug 5, 2003
- Seiko Epson Corporation
- Eiichi Nagasaka
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electronically controlled mechanical timepiece
- Patent number 6,097,675
- Issue date Aug 1, 2000
- Seiko Epson Corporation
- Osamu Takahashi
- G04 - HOROLOGY
Information Patent Grant
Piezoelectric power generator for a portable power supply unit and...
- Patent number 5,751,091
- Issue date May 12, 1998
- Seiko Epson Corporation
- Osamu Takahashi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
Timepiece Part and Timepiece
- Publication number 20220299941
- Publication date Sep 22, 2022
- SEIKO EPSON CORPORATION
- Eiichi NAGASAKA
- G04 - HOROLOGY
Information Patent Application
TIMEPIECE PART AND TIMEPIECE
- Publication number 20200133200
- Publication date Apr 30, 2020
- SEIKO EPSON CORPORATION
- Eiichi NAGASAKA
- G04 - HOROLOGY
Information Patent Application
TIMEPIECE
- Publication number 20080239883
- Publication date Oct 2, 2008
- SEIKO EPSON CORPORATION
- Eiichi NAGASAKA
- G04 - HOROLOGY
Information Patent Application
METHOD OF MANUFACTURING MAGNETIC CORE, MAGNETIC CORE, ELECTROMAGNET...
- Publication number 20080022511
- Publication date Jan 31, 2008
- SEIKO EPSON CORPORATION
- Tatsuo Hara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Multifunctional watch
- Publication number 20070086276
- Publication date Apr 19, 2007
- SEIKO EPSON CORPORATION
- Tsuneaki Furukawa
- G04 - HOROLOGY
Information Patent Application
Method of manufacturing magnetic core, magnetic core, electromagnet...
- Publication number 20050152063
- Publication date Jul 14, 2005
- Seiko Epson Corporation
- Tatsuo Hara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Multifunctional watch
- Publication number 20040264304
- Publication date Dec 30, 2004
- SEIKO EPSON CORPORATION
- Tsuneaki Furukawa
- G04 - HOROLOGY

Eiichi Nagasaka

Person

Patents Grantslast 30 patents

Timepiece part and timepiece

Timepiece part and timepiece

Timepiece

Method of manufacturing magnetic head

Multifunctional watch

Starter for electricmagnetic converter, and timepiece

Electronic timepiece

Electronically controlled mechanical timepiece

Piezoelectric power generator for a portable power supply unit and...

Patents Applicationslast 30 patents

Timepiece Part and Timepiece

TIMEPIECE PART AND TIMEPIECE

TIMEPIECE

METHOD OF MANUFACTURING MAGNETIC CORE, MAGNETIC CORE, ELECTROMAGNET...

Multifunctional watch

Method of manufacturing magnetic core, magnetic core, electromagnet...

Multifunctional watch