Average Co-Inventor Count = 2.89
ph-index = 11
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 (12 from 90,594 patents)
2. Tokyo Shibaura Denki Kabushiki Kaisha (4 from 2,916 patents)
3. Kabushiki Kaisha Toshiba (2 from 52,711 patents)
18 patents:
1. 6712458 - Liquid container, elastic member for liquid container, and recording apparatus
2. 6419341 - Method and apparatus for detecting the discharge status of inkjet printheads
3. 6312086 - Ink jet recording apparatus having separately disposed recovery and ink detection devices
4. 6247784 - Ink jet cartridge replacement control
5. 6130682 - Ink jet recording apparatus with detection of discharge malfunction
6. 6082847 - Image system with informing means
7. 6056386 - Testing for normal print discharge
8. 6048045 - Printer and facsimile apparatus that can test for a proper functioning
9. 5920743 - Sheet feeding apparatus having means for determining the leading edge of
10. 5701547 - Sheet feeding apparatus having means for determining the leading edge of
11. 5552902 - Facsimile apparatus with internal mechanism for conveying originals and
12. 5461714 - Apparatus for synthesizing an object described in an object-oriented
13. 5353371 - Apparatus and methods for generating a program by synthesizing an object
14. 5136340 - Recording apparatus
15. 4722443 - Paper sheet processing apparatus