KO

Kunihiko Otaguro

PK Pentel Kabushiki Kaisha: 1 patents #76 of 170Top 45%
Overall (All Time): #3,989,021 of 4,157,543Top 100%
1
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4565463 Aqueous ink cartridge with two part vent plug Hiroshi Takahashi, Kazuma Noguchi, Takeshi Toyama, Takashi Ishikawa, Isao Ebisawa 1986-01-21