Average Co-Inventor Count = 2.77
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. Keyence Corporation (3 from 514 patents)
2. Wada Seimitsu Shiken Kabushiki Kaisha (3 from 3 patents)
3. Other (1 from 832,891 patents)
4. Haruyuki Kawahara (1 from 4 patents)
5. Nippon Mektron Kabushiki Kaisha (1 from 3 patents)
6. Nippon Maktron Kabushiki Kaish (1 from 1 patent)
6 patents:
1. D777250 - ROM chip attachment of an ink bottle
2. 9387684 - Ink jet recording apparatus, ink or solvent cartridge, and bottle included in cartridge
3. D722642 - Ink bottle for inkjet printer
4. 4738622 - Removable denture retaining structure
5. 4731020 - Removable denture retaining structure
6. 4439153 - Bio-functional denture