Growing community of inventors

Hiratsuka, Japan

Masakazu Niwa

Average Co-Inventor Count = 1.73

ph-index = 5

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 = 94

Masakazu NiwaKenichirou Endou (3 patents)Masakazu NiwaKatsuyuki Kato (2 patents)Masakazu NiwaTakumi Morito (1 patent)Masakazu NiwaTetsuya Kuze (1 patent)Masakazu NiwaHiroshi Hata (1 patent)Masakazu NiwaKenichiro Sugitani (1 patent)Masakazu NiwaShuichi Fujishiro (1 patent)Masakazu NiwaMasakuni Kawamura (1 patent)Masakazu NiwaWataru Furutani (1 patent)Masakazu NiwaKoutaro Iwabuchi (1 patent)Masakazu NiwaMasakazu Niwa (10 patents)Kenichirou EndouKenichirou Endou (10 patents)Katsuyuki KatoKatsuyuki Kato (2 patents)Takumi MoritoTakumi Morito (45 patents)Tetsuya KuzeTetsuya Kuze (13 patents)Hiroshi HataHiroshi Hata (13 patents)Kenichiro SugitaniKenichiro Sugitani (5 patents)Shuichi FujishiroShuichi Fujishiro (3 patents)Masakuni KawamuraMasakuni Kawamura (2 patents)Wataru FurutaniWataru Furutani (1 patent)Koutaro IwabuchiKoutaro Iwabuchi (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. The Yokohama Rubber Co., Ltd. (9 from 2,760 patents)

2. Coopervision International Holding Company, LP (1 from 146 patents)


10 patents:

1. 9669665 - Pneumatic tire

2. D777644 - Automobile tire

3. D724009 - Automobile tire

4. 8521552 - System and method for providing a medical device to a patient

5. D593934 - Automobile tire

6. D593935 - Automobile tire

7. D592127 - Automobile tire

8. 6786260 - Pneumatic radial tire for negative camber angle suspension

9. D453495 - Automobile tire

10. D426855 - Automobile tire

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as of
12/3/2025
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