Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
TC

Tgk Co. — 139 Patents

Rank (All Time): #5,115 of 105,732Top 5%
64 inventors
139 Patents All Time

Patents per Year

Patents granted per year, 1986 to 2021Bar chart with a peak of 17 patents in 2017.peak 171986: 3 patents19861988: 1 patents1992: 1 patents1997: 1 patents19971999: 2 patents2000: 2 patents2001: 9 patents20012002: 8 patents2003: 10 patents2004: 6 patents20042005: 7 patents2006: 15 patents2007: 3 patents20072008: 6 patents2009: 1 patents2010: 2 patents20102012: 1 patents2013: 7 patents2014: 4 patents20142015: 3 patents2016: 9 patents2017: 17 patents20172018: 9 patents2019: 6 patents2020: 4 patents20202021: 2 patents2021

Top Inventors at Tgk Co. All Time

Showing 1–50 of 64 inventors

RankNamePatents
1 Hisatoshi Hirota 61
2 Takeshi Kaneko 26
3 Shinji Saeki 15
#4 Masaaki Tonegawa 13
#5 Katsumi Koyama 12
#5 Ryosuke Satake 12
#7 Takeshi Watanabe 11
#7 Tokumi Tsugawa 11
#9 Takanao Kumakura 10
#10 Toshiyuki Shiota 8
#11 Isao Sendo 6
#12 Michio Matsumoto 5
#12 Takashi Sannomiya 5
#12 Toshihiro Andoh 5
#12 Yuusuke Inoue 5
#16 Morimitsu Kajiwara 4
#16 Takashi Kobayashi 4
#18 Hiroshi Hamada 3
#18 Kazushi Takahashi 3
#18 Ryota Sugamura 3
#18 Ryousuke Yoshihiro 3
#18 Shigeru Abe 3
#18 Tomokazu Nakazawa 3
#18 Tomohiro Yuasa 3
#25 Etsumi Nakano 2
#25 Kazuhiro Irie 2
#25 Masaichi Kawahata 2
#25 Toyoyuki Hara 2
#25 Yusuke Inoue 2
#25 Yuta Iwamoto 2
#25 Yuto Ooe 2
#32 Akihiko Yamamoto 1
#32 Eiji Nemoto 1
#32 Hiroaki Masuhara 1
#32 Hirotaka Nakatukasa 1
#32 Hidekazu Sakakibara 1
#32 Hitoshi Tsuda 1
#32 Hirofumi Yamashita 1
#32 Katsushi Arata 1
#32 Kiyotaka Ueki 1
#32 Kouji Habu 1
#32 Kotaka Tamotsu 1
#32 Kuniharu Baba 1
#32 Masahide Ishikawa 1
#32 Michiyoshi Miyazaki 1
#32 Misaki Satou 1
#32 Naoyuki Ito 1
#32 Naoya Wanajo 1
#32 Ryouta Sugamura 1
#32 Satoshi Hayakawa 1