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So NAKAJIMA

IC Idemitsu Kosan Co.: 6 patents #239 of 1,237Top 20%
Overall (All Time): #774,717 of 4,157,543Top 20%
6
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
12384882 Polyalkylene glycol compound Yukio Yoshida 2025-08-12
12227471 Polyalkylene glycol-based compound Yukio Yoshida 2025-02-18
11542455 Lubricating oil composition and composition for refrigerator 2023-01-03
11015138 Refrigerating machine oil, and composition for refrigerating machine Tomoya Matsumoto 2021-05-25
10889776 Refrigerating machine oil, and composition for refrigerating machine Tomoya Matsumoto 2021-01-12
10662392 Lubricating oil composition for refrigerator, composition for refrigerator, lubricating method, and refrigerator Masato Kaneko, Tetsuhiko Fukanuma, Ryo Matsubara, Yuki Yokoi 2020-05-26