Average Co-Inventor Count = 1.99
ph-index = 10
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. Ricoh Company, Ltd. (11 from 28,577 patents)
2. Fujimori Kogyo Co., Ltd. (5 from 86 patents)
3. Other (3 from 832,880 patents)
4. Canon Kabushiki Kaisha (3 from 90,753 patents)
5. Seiko Epson Corporation (3 from 33,464 patents)
6. Mitsubishi Heavy Industries Limited (2 from 4,631 patents)
7. Bridgestone Corporation (1 from 5,124 patents)
8. Waseda University (1 from 158 patents)
9. Waseda Univerity (1 from 1 patent)
10. Kabushiki Kaisha Kenshin (1 from 1 patent)
11. Sony Corporation (58,131 patents)
12. Hashimoto, Kenji (0 patent)
26 patents:
1. 11203232 - Radial tire for aircraft
2. 10220897 - Mobile robot and front end tool
3. 9845122 - Mobile robot and front end tool
4. 9086664 - Fixing device with a heat generating layer containing a high molecular compound and a carbon fiber, and an electrophotographic image forming apparatus containing the fixing device
5. 6307181 - Body hair treating implement
6. 6043457 - Body hair treating implement
7. 5960068 - Communication apparatus for receiving identification information of
8. 5892815 - Image communication apparatus capable of switching line to external
9. 5396355 - Optically compensating film, optical compensator and liquid crystal
10. 5343317 - Optically compensating film, optical compensator, and liquid crystal
11. 5335837 - Automatic document feeder responsive to paper jam
12. 5337174 - Optical compensator and liquid crystal display
13. 5295616 - Switchable automatic document feeder capable of feeding continuous form
14. 5279453 - Automatic document feeder capable of feeding a document in the form of a
15. 5259544 - Automatic document feeder capable of feeding a document in the form of