Average Co-Inventor Count = 3.82
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. Kabushiki Kaisha Ueno Seiyaku Oyo Kenkyujo (14 from 73 patents)
2. Ueno Fine Chemicals Industry, Ltd. (2 from 22 patents)
3. Kabushiki Kaisha Ueno Seiyaku Oyo Kenkujo (1 from 3 patents)
17 patents:
1. 7531691 - Method for producing naphthalene carboxylic acid amide compound
2. 7449608 - Naphthol derivative and charge control agent comprising the same
3. 7355071 - Method for preparing 2,6-naphthalene dicarboxylic acid
4. 7169523 - Charge controllers
5. 7074536 - Alkylenebisnaphtol derivative and charge control agent which consists of the same
6. 7030261 - Method for preparing 2-hydroxy-6-ureidocarbonyl naphthalene derivative
7. 6891072 - Process for production of dimers or aromatic monohydroxyl compounds
8. 6849742 - Binaphthol derivative and process for producing the same
9. 6639092 - Metal salt of binaphthol derivative and method for preparing the same
10. 6451988 - Naphthol derivatives
11. 6409812 - AZO compounds and process for producing the same
12. 6284924 - Compounds
13. 6084101 - Naphtol derivative and process for producing the same
14. 6072042 - Bis(aminocarbonylnaphthol) derivative
15. 6005085 - Condensed azo compounds and process for preparing the same