Movement and electronic timepiece
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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May 15, 2018
Issued Date -
N/A
app pub date -
Aug 16, 2016
filing date -
Aug 21, 2015
priority date (Note) -
In Force
status (Latency Note)
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Importance

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Abstract
A timepiece movement includes a center wheel & pinion that drives a minute hand, a second wheel & pinion arranged coaxially with a center axle of the center wheel & pinion, a first light emitting element arranged on one side in an axial direction of the center axle with respect to the center wheel & pinion and the second wheel & pinion, and a first light receiving element arranged on the other side in the axial direction of the center axle across the second wheel & pinion, and that detects light emitted from the first light emitting element. The center wheel & pinion has a first center wheel transmittable portion through which the light emitted from the first light emitting element is transmittable, and a second center wheel transmittable portion which is disposed on a rotation trajectory of the first center wheel transmittable portion and through which the light emitted from the first light emitting element is transmittable. The second wheel & pinion has a first second wheel transmittable portion which is disposed on the rotation trajectory of the first center wheel transmittable portion and the second center wheel transmittable portion when viewed in the axial direction of the center axle and through which the light emitted from the first light emitting element is transmittable.
First Claim
all claims..Other Claims data not available
Family
Country | kind | publication No. | Filing Date | Type | Sub-Type |
---|---|---|---|---|---|
JP | B2 | JP6755714 | May 27, 2016 | Patent | Grant |
Type : Patent Sub-Type : Grant | |||||
PUBLISHED GRANTED PATENT (SECOND LEVEL) | ムーブメントおよび電子時計 | Sep 16, 2020 | |||
CN | B | CN106468874 | Aug 15, 2016 | Patent | Grant |
Type : Patent Sub-Type : Grant | |||||
GRANTED PATENT FOR INVENTION | Movement and electronic timepiece | Mar 20, 2020 |
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
SEIKO WATCH CORPORATION | 5-11 GINZA 4-CHOME CHUO-KU TOKYO |
International Classification(s)

- 2016 Application Filing Year
- G04B Class
- 310 Applications Filed
- 246 Patents Issued To-Date
- 79.36 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Ihashi, Tomohiro | Chiba, JP | 52 | 129 |
# of filed Patents : 52 Total Citations : 129 | |||
Mugishima, Katsuya | Chiba, JP | 12 | 3 |
# of filed Patents : 12 Total Citations : 3 | |||
Ogasawara, Kenji | Chiba, JP | 141 | 843 |
# of filed Patents : 141 Total Citations : 843 | |||
Sakai, Satoshi | Chiba, JP | 163 | 1884 |
# of filed Patents : 163 Total Citations : 1884 |
Cited Art Landscape
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Patent Citation Ranking
- 0 Citation Count
- G04B Class
- 0 % this patent is cited more than
- 7 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Nov 15, 2025 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Nov 15, 2029 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text

Legal Events
Date | Code | Event | Description |
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Sep 30, 2024 | AS | ASSIGNMENT | free format text: NUNC PRO TUNC ASSIGNMENT;ASSIGNOR:SEIKO INSTRUMENTS INC.;REEL/FRAME:069183/0051 Owner name: SEIKO WATCH CORPORATION, JAPAN Effective Date: Sep 30, 2024 |
Nov 03, 2021 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 4 |
May 15, 2018 | I | Issuance | |
Apr 25, 2018 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Feb 23, 2017 | P | Published | |
Aug 16, 2016 | F | Filing | |
Jul 26, 2016 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SAKAI, SATOSHI;MUGISHIMA, KATSUYA;IHASHI, TOMOHIRO;AND OTHERS;REEL/FRAME:039453/0824 Owner name: SEIKO INSTRUMENTS INC., JAPAN Effective Date: Jul 26, 2016 |
Aug 21, 2015 | PD | Priority Date |

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