Average Co-Inventor Count = 2.70
ph-index = 4
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Seikosha Co., Ltd. (8 from 696 patents)
2. Canon Kabushiki Kaisha (3 from 90,594 patents)
3. Seiko Clock Inc. (2 from 29 patents)
4. Google Inc. (1 from 32,429 patents)
14 patents:
1. 9424360 - Ranking events
2. 9020403 - Developing device
3. 8867967 - Development apparatus
4. 8478146 - Developing apparatus and image forming apparatus
5. D680135 - Gear pump
6. D631438 - Portion of geared motor
7. 5116270 - Luminous pointer and manufacturing method thereof
8. 5105398 - Three hands type clock with belt drive
9. 4995022 - Power supply device for hand with luminescence element
10. 4968971 - Method of spot welding parts of an electromagnetic bell unit
11. 4912453 - Electromagnetic bell unit, its fitting structure and a method of welding
12. D304163 - Electromagnetic bell
13. 4796239 - Circuit unit for timepiece and process for fabricating the same
14. 4745682 - Method of connecting coil