Growing community of inventors

Hiratsuka, Japan

Masako Yamakawa

Average Co-Inventor Count = 2.23

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.

Forward Citations = 47

Masako YamakawaMasatoshi Echigo (6 patents)Masako YamakawaTakashi Shimada (1 patent)Masako YamakawaYasuhiko Koiso (1 patent)Masako YamakawaYouji Nawa (1 patent)Masako YamakawaNaoto Wagatsuma (1 patent)Masako YamakawaMinako Suzuki (1 patent)Masako YamakawaMasako Yamakawa (8 patents)Masatoshi EchigoMasatoshi Echigo (63 patents)Takashi ShimadaTakashi Shimada (24 patents)Yasuhiko KoisoYasuhiko Koiso (7 patents)Youji NawaYouji Nawa (7 patents)Naoto WagatsumaNaoto Wagatsuma (4 patents)Minako SuzukiMinako Suzuki (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Mitsubishi Gas Chemical Company, Inc. (6 from 2,250 patents)

2. Japan Pionics Co., Ltd. (2 from 56 patents)


8 patents:

1. 10377734 - Resist composition, method for forming resist pattern, polyphenol derivative for use in the composition

2. 9908831 - Resist composition, method for forming resist pattern, polyphenolic compound for use in the composition, and alcoholic compound that can be derived therefrom

3. 9598392 - Resist composition, method for forming resist pattern, polyphenolic compound for use in the composition, and alcoholic compound that can be derived therefrom

4. 9540339 - Resist composition, method for forming resist pattern, polyphenolic compound for use in the composition, and alcoholic compound that can be derived therefrom

5. 9182666 - Cyclic compound, method for producing the same, radiation-sensitive composition, and resist pattern formation method

6. 9122153 - Cyclic compound, method for producing same, composition, and method for forming resist pattern

7. 6127290 - Heat generator for footwear and manufacturing method thereof

8. 5665313 - Detecting agent

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