Average Co-Inventor Count = 2.51
ph-index = 13
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. (25 from 28,605 patents)
2. Nec Corporation (4 from 35,793 patents)
3. Tohoku Ricoh Co., Ltd. (4 from 234 patents)
4. Agency of Industrial Science and Technology (3 from 1,430 patents)
5. Mitsubishi Chemical Corporation (2 from 2,354 patents)
6. Kel Corporation (2 from 82 patents)
7. Other (1 from 833,002 patents)
8. Sony Corporation (1 from 58,132 patents)
9. The Furukawa Electric Co., Ltd. (1 from 2,639 patents)
10. Toppan Printing Co., Ltd. (1 from 1,269 patents)
11. Canon Anelva Corporation (1 from 356 patents)
12. International Superconductivity Technology Center (1 from 128 patents)
13. Chugai Ro Co., Ltd. (1 from 74 patents)
14. Seimi Chemical Co., Ltd. (1 from 38 patents)
15. Sanki Engineering Co., Ltd. (1 from 18 patents)
47 patents:
1. 12359277 - Annealing furnace, method of constructing annealing furnace, and structure for prefabrication
2. 12066250 - Method of installing heat insulating block on furnace shell, method of manufacturing heat insulating wall, heat insulating wall, industrial furnace, and set for installing heat insulating block
3. 11536515 - Roller shaft portion thermal insulation member for continuous annealing furnace and continuous annealing furnace
4. 10590598 - Heat-insulating protective member for skid post and method for applying the heat-insulating protective member for skid post
5. 10527283 - Burner tile, burner, and furnace
6. 10236199 - Substrate processing method and substrate processing apparatus
7. 9557563 - Optical scanning device, method of adjusting optical scanning device, and image forming apparatus
8. 8670013 - Light scanning device, light scanning device production method, and color image forming apparatus
9. 8610985 - Optical scanning device and image forming apparatus
10. 8451308 - Image forming apparatus
11. 8304393 - Epithelial cell growth promoter
12. 8260388 - Current terminal structure of superconducting wire and superconducting cable having the current terminal structure
13. 8130435 - Optical scanner and color image forming apparatus
14. 8111276 - Optical scanning device and image forming apparatus with a center adjusting mechanism
15. 8072667 - Optical scanning device and image forming apparatus