Average Co-Inventor Count = 1.94
ph-index = 5
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. Hitachi, Ltd. (5 from 42,508 patents)
2. Topy Kogyo Kabushiki Kaisha (3 from 91 patents)
3. Ricoh Company, Ltd. (2 from 28,577 patents)
4. Ishikawajima-Harima Heavy Industries Co., Ltd. (1 from 341 patents)
11 patents:
1. 9286246 - System for managing task that is for processing to computer system and that is based on user operation and method for displaying information related to task of that type
2. 8162489 - Video projection system
3. 7512637 - Storage system and undo processing method
4. 7337283 - Method and system for managing storage reservation
5. D555185 - Video projector
6. 5010759 - Wheel rim shaping apparatus having a single cotter supportable at both
7. 4932838 - Fluid apparatus
8. 4841622 - Apparatus for interference-fitting an inner member with an annular outer
9. 4739874 - Loading/unloading apparatus for loading/unloading a work on/from a
10. 4607939 - Removable developing unit for an electrostatic recording apparatus
11. 4373800 - Wet type electrophotographic copying machine