Average Co-Inventor Count = 1.74
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. Ricoh Company, Ltd. (3 from 28,566 patents)
2. Toyo Ink Manufacturing Company (1 from 223 patents)
3. Toyo Ink Mfg. Co., Ltd. (1 from 105 patents)
5 patents:
1. 7941068 - Image forming apparatus, image forming system, and recording medium
2. 7745617 - Metallophthalocyanine mixed crystal and phthalocyanine pigment containing the same
3. 7679775 - Z-fold method and image forming apparatus
4. 7595903 - Collaboration system, method and software program for image forming apparatuses
5. 5556966 - Process for the production of aluminum phthalocyanine composition