Membership
Tour
Register
Log in
Hiroyuki Masaki
Follow
Person
Chiba-shi, JP
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Stepping motor control circuit and analogue electronic timepiece
Patent number
8,319,468
Issue date
Nov 27, 2012
Seiko Instruments Inc.
Saburo Manaka
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Stepping motor control circuit and analog electronic timepiece
Patent number
8,111,033
Issue date
Feb 7, 2012
Seiko Instruments Inc.
Kenji Ogasawara
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Analog radio-controlled timepiece
Patent number
7,808,860
Issue date
Oct 5, 2010
Seiko Instruments Inc.
Hiroyuki Masaki
G04 - HOROLOGY
Information
Patent Grant
High accuracy timepiece
Patent number
6,830,371
Issue date
Dec 14, 2004
Seiko Instruments Inc.
Hiroyuki Masaki
G04 - HOROLOGY
Information
Patent Grant
Sensor timepiece, sensor timepiece data input system and method, an...
Patent number
6,798,718
Issue date
Sep 28, 2004
Seiko Instruments Inc.
Hiroyuki Masaki
G01 - MEASURING TESTING
Information
Patent Grant
High accuracy timepiece
Patent number
6,616,328
Issue date
Sep 9, 2003
Seiko Instruments Inc.
Hiroyuki Masaki
G04 - HOROLOGY
Information
Patent Grant
Analogue electronic timepiece with chronographic function
Patent number
5,386,399
Issue date
Jan 31, 1995
Seiko Instruments Inc.
Hiroyuki Masaki
G04 - HOROLOGY
Information
Patent Grant
Photoelectric pulsation type pulsimeter
Patent number
5,190,047
Issue date
Mar 2, 1993
Seiko Instruments Inc.
Hiroshi Odagiri
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Self-chargeable electronic timepiece with operating voltage checking
Patent number
4,785,435
Issue date
Nov 15, 1988
Seiko Instruments Inc.
Yuichi Inoue
G04 - HOROLOGY
Information
Patent Grant
Electronic timepiece
Patent number
4,779,248
Issue date
Oct 18, 1988
Seiko Instruments Inc.
Hiroshi Odagiri
G04 - HOROLOGY
Information
Patent Grant
Electronic timepiece
Patent number
4,737,944
Issue date
Apr 12, 1988
Seiko Instruments Inc.
Yuichi Inoue
G04 - HOROLOGY
Patents Applications
last 30 patents
Information
Patent Application
Stepping motor control circuit and analogue electronic timepiece
Publication number
20100172219
Publication date
Jul 8, 2010
Saburo Manaka
G04 - HOROLOGY
Information
Patent Application
Stepping motor control circuit and analog electronic timepiece
Publication number
20090316535
Publication date
Dec 24, 2009
Kenji Ogasawara
G04 - HOROLOGY
Information
Patent Application
Analog radio-controlled timepiece
Publication number
20080130420
Publication date
Jun 5, 2008
Hiroyuki Masaki
G04 - HOROLOGY
Information
Patent Application
Portable electronic apparatus
Publication number
20050104805
Publication date
May 19, 2005
Hiroyuki Masaki
G04 - HOROLOGY
Information
Patent Application
Electronic timepiece
Publication number
20030174588
Publication date
Sep 18, 2003
Hiroyuki Masaki
G04 - HOROLOGY
Information
Patent Application
High accuracy timepiece
Publication number
20030063526
Publication date
Apr 3, 2003
Seiko Instruments Inc.
Hiroyuki Masaki
G04 - HOROLOGY