Average Co-Inventor Count = 4.33
ph-index = 4
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. Idemitsu Kosan Company, Limited (8 from 2,272 patents)
2. Idemitsu Petrochemical Co., Ltd. (2 from 555 patents)
3. Ricoh Company, Ltd. (1 from 28,577 patents)
4. Osaka Organic Chemical Industry Ltd. (1 from 12 patents)
12 patents:
1. 10038143 - Polymer compound, material for electronic elements, material for organic electroluminescent elements, and organic electroluminescent element
2. 9847490 - Copolymer, material for organic electronic element, material for organic electroluminescent element, and organic electroluminescent element
3. 9513545 - Homoadamantane derivatives, process for preparing same, and photoresist compositions
4. 9508939 - Compound and organic electroluminescent element produced using same
5. 8518618 - Electrophotographic photoconductor, image forming apparatus, and process cartridge
6. 8022151 - Adamantane derivative, method for producing the same, resin composition containing the adamantane derivative and use thereof
7. 7528279 - Adamantane derivatives and process for producing the same
8. 7470824 - Adamantane derivative and process for producing the same
9. 7423180 - Bis(3-amino-4-hydroxyphenyl)adamantane derivatives and process for production thereof
10. 7402712 - Adamantyl vinyl ether compound and production process for the same
11. 7084295 - Perfluoroadamantyl acrylate compound and intermediate therefor
12. 6268543 - Method of removing mercury in liquid hydrocarbon