YN

Yoji Nagai

HI Hitachi: 4 patents #8,942 of 28,497Top 35%
DC Daido Metal Company: 2 patents #119 of 280Top 45%
HC Hitachi Engineering Co.: 2 patents #103 of 572Top 20%
Overall (All Time): #892,634 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
5116692 Multi-layer type sliding bearing of aluminum alloy and method of producing the same Sanae Mori, Masaaki Sakamoto, Hideo Ishikawa 1992-05-26
5056937 Sliding bearing Tadashi Tanaka, Masaaki Sakamoto, Motomu Wada, Hideyuki Kidokoro 1991-10-15
4920276 Heat-and-electricity supply system Akitaka Tateishi, Tadao Arakawa, Masaru Kurosawa, Yoshifumi Kubo 1990-04-24
4434620 Condensation system for power plant Hitoshi Ishimaru, Toyohiko Masuda 1984-03-06
4365476 Condensation system for power plant Toyohiko Masuda, Takeshi Ueno, Hitoshi Ishimaru, Shozo Nakamura 1982-12-28
4353213 Side stream type condensing system and method of operating the same Toyohiko Masuda, Takeshi Ueno, Hiroshi Tsunematsu, Shozo Nakamura 1982-10-12