Growing community of inventors

Chiba, Japan

Masao Kawahara

Average Co-Inventor Count = 5.46

ph-index = 2

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 = 24

Masao KawaharaToshifumi Takemori (2 patents)Masao KawaharaMasashi Iida (2 patents)Masao KawaharaTetsuya Iizuka (1 patent)Masao KawaharaShigeharu Yamamoto (1 patent)Masao KawaharaYoshihisa Hayashida (1 patent)Masao KawaharaMinoru Iijima (1 patent)Masao KawaharaKatsutoshi Nishitani (1 patent)Masao KawaharaMasao Kawahara (2 patents)Toshifumi TakemoriToshifumi Takemori (11 patents)Masashi IidaMasashi Iida (3 patents)Tetsuya IizukaTetsuya Iizuka (53 patents)Shigeharu YamamotoShigeharu Yamamoto (7 patents)Yoshihisa HayashidaYoshihisa Hayashida (6 patents)Minoru IijimaMinoru Iijima (6 patents)Katsutoshi NishitaniKatsutoshi Nishitani (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Maruzen Petrochemical Company, Limited (2 from 122 patents)


2 patents:

1. 6787616 - Catalyst for olefin polymerization and process for polymerizing olefin by means thereof

2. 6743863 - Resin composition comprising ethylene-based polymers and process for its production

Please report any incorrect information to support@idiyas.com
idiyas.com
as of
12/13/2025
Loading…