HM

Hiromasa Muraki

NI Nippon Valqua Industries: 2 patents #12 of 83Top 15%
HC Hitachi Construction Machinery Co.: 1 patents #701 of 1,234Top 60%
TK Topy Kogyo Kabushiki Kaisha: 1 patents #71 of 189Top 40%
Overall (All Time): #2,165,730 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7004474 Seal for an endless track Kenichi Takahashi, Masaki Ohara, Akiyoshi Kurihara, Seiji Oomura, Noriyuki Andou +4 more 2006-02-28
6783129 Sealing device Hideki Akita, Ryohei Suzuki, Osamu Gokita, Tatsuo Takamure, Noriyuki Ando 2004-08-31