Average Co-Inventor Count = 2.00
ph-index = 7
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. (10 from 696 patents)
2. Yamaha Hatsudoki Kabushiki Kaisha (6 from 4,238 patents)
3. Yamaha Hatsudoki Kabushiki Kaisha, Yamaha Motor Co., Ltd. (1 from 3 patents)
17 patents:
1. D371572 - Date/time stamper
2. D370935 - Date/time stamper
3. D360429 - Printer for computer
4. D354002 - Combined clock and picture frame
5. D350364 - Printer for computer
6. D347184 - Clock
7. D340740 - Printer for a computer
8. D336436 - Clock
9. D327223 - Clock
10. D322278 - Printer for a computer
11. D274231 - Scooter
12. D273853 - Motorcycle
13. D269169 - Motorcycle
14. D268998 - Motorcycle
15. D267561 - Motorcycle