Average Co-Inventor Count = 2.69
ph-index = 6
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. (8 from 28,577 patents)
8 patents:
1. 6348519 - Emulsion ink and printing method using emulsion ink
2. 6063835 - Emulsion ink and printing method using emulsion ink
3. 5990042 - Sublimation thermal transfer image receiving material and image
4. 5750299 - Method of forming colored image by use of inorganic toner, inorganic
5. 4880768 - Sublimation type thermosensitive image transfer recording medium
6. 4680592 - Image formation method subliming ink through a gas permeable membrane
7. 4164307 - Cap with supply stopper for use with containers
8. 4019646 - Cap with inside stopper for receptacle