Average Co-Inventor Count = 4.40
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. Ricoh Company, Ltd. (14 from 28,566 patents)
2. Daikin Industries, Ltd. (7 from 4,279 patents)
3. Kabushiki Kaisha Toshiba (5 from 52,735 patents)
4. Astrazeneca Ab (3 from 1,500 patents)
5. Mitsubishi Heavy Industries Limited (4,629 patents)
29 patents:
1. 11440293 - Layered product
2. 11084895 - Modified polytetrafluoroethylene fine powder and uniaxially stretched porous body
3. 10688448 - Porous body, polymer electrolyte membrane, filter material for filter, and filter unit
4. 10081872 - Hydrogen production system and method for producing hydrogen
5. 9957626 - Hydrogen production system and method for producing hydrogen
6. 9238566 - Sheet cutting device and image forming apparatus including the sheet cutting device
7. 8967790 - Sheet cutting device and image forming apparatus including the sheet cutting device
8. 8967028 - Sheet cutting device and image forming apparatus including the sheet cutting device
9. 8955962 - Image forming apparatus including sheet cutting device
10. 8925436 - Sheet cutting device and image forming apparatus including the sheet cutting device
11. 8821051 - Image forming apparatus with openings for receiving rolls
12. 8790028 - Image forming apparatus with offset upper and lower sheet roll supporters
13. 8764182 - Image forming apparatus including sheet cutting device
14. 8657402 - Image forming apparatus including sheet cutting device
15. 8593651 - Image forming apparatus with shortened conveyance path of sheet roll