Growing community of inventors

Tokyo, Japan

Takumi Yamashita

Average Co-Inventor Count = 6.15

ph-index = 1

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 = 0

Takumi YamashitaTomio Takeuchi (1 patent)Takumi YamashitaSeiichi Saito (1 patent)Takumi YamashitaTakashi Harada (1 patent)Takumi YamashitaMasanori Yamazaki (1 patent)Takumi YamashitaTetsushi Saino (1 patent)Takumi YamashitaYasuhiko Muraoka (1 patent)Takumi YamashitaNobuyoshi Shimada (1 patent)Takumi YamashitaTakaaki Nishikiori (1 patent)Takumi YamashitaKiyonobu Hirose (1 patent)Takumi YamashitaChihiro Nishimura (1 patent)Takumi YamashitaTakashi Kurokawa (1 patent)Takumi YamashitaTakumi Yamashita (2 patents)Tomio TakeuchiTomio Takeuchi (186 patents)Seiichi SaitoSeiichi Saito (62 patents)Takashi HaradaTakashi Harada (48 patents)Masanori YamazakiMasanori Yamazaki (24 patents)Tetsushi SainoTetsushi Saino (23 patents)Yasuhiko MuraokaYasuhiko Muraoka (22 patents)Nobuyoshi ShimadaNobuyoshi Shimada (16 patents)Takaaki NishikioriTakaaki Nishikiori (4 patents)Kiyonobu HiroseKiyonobu Hirose (4 patents)Chihiro NishimuraChihiro Nishimura (2 patents)Takashi KurokawaTakashi Kurokawa (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Nippon Kayaku Kabushiki Kaisha (2 from 775 patents)

2. Zaidan Hojin Biseibutsu Kagaku Kenkyu Kai (1 from 212 patents)


2 patents:

1. 7247640 - Medicament for treatment of bone marrow suppression, for treatment of infectious diseases and for increasing the number of leukocytes

2. 4994582 - Novel antibiotic NK130119

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as of
12/14/2025
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