YT

Yukio Tatsumi

AK Asahi Denka Kogyo: 1 patents #2 of 16Top 15%
AK Asahi Denka Kogyo K.K.: 1 patents #2 of 17Top 15%
Overall (2002): #33,532 of 266,432Top 15%
2
Patents 2002

Issued Patents 2002

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6465399 Lubricant composition Naomi Koishikawa 2002-10-15
6379581 Lubricated refrigerant composition containing fluorocarbon-type refrigerant, synthetic oil and molybdenumoxysulfide derivatives Tamiji Kamakura, Noriyoshi Tanaka, Kimiyoshi Namiwa, Masato Namiki 2002-04-30