Average Co-Inventor Count = 4.88
ph-index = 3
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. Canon Kabushiki Kaisha (39 from 90,697 patents)
2. Nippon Steel Corporation (2 from 3,557 patents)
41 patents:
1. 12466190 - Inkjet printing apparatus and ink tank
2. RE50645 - Ink jet recording apparatus
3. 12427778 - Recording apparatus
4. 12420554 - Printing apparatus and liquid container
5. 12397557 - Printing apparatus and printhead
6. 12384164 - Liquid discharge apparatus having liquid container and operating member
7. 12365183 - Ink tank and ink jet printing apparatus
8. 12358284 - Liquid ejection apparatus
9. RE50482 - Printing apparatus and liquid storage member
10. 12269272 - Liquid discharge apparatus and liquid storage container
11. 12252802 - Surface-treated steel sheet
12. 12187042 - Printing apparatus and liquid storing container
13. 12162286 - Recording apparatus
14. 12129568 - Surface-treated steel sheet
15. 12122165 - Inkjet recording apparatus and ink tank that prevents ink dripping when ink is injected into an ink tank