OI

Osamu Ishikawa

JR Japan Synthetic Rubber: 2 patents #3 of 76Top 4%
Sumitomo Electric Industries: 2 patents #217 of 2,038Top 15%
Overall (1997): #6,501 of 185,788Top 4%
4
Patents 1997

Issued Patents 1997

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
5700852 Paper coating composition Shin-ichiro Iwanaga, Shigeru Shingae, Takasi Morita, Norichika Nojima 1997-12-23
5637644 Process for producing copolymer latex and paper coating composition, carpet backing composition or adhesive composition comprising said latex Katsuhiko Tsuruoka, Shozo Nishida, Masafumi Wakamori, Takemitsu Tanaka, Masaaki Yada +1 more 1997-06-10
5594358 Radio frequency probe and probe card including a signal needle and grounding needle coupled to a microstrip transmission line Hiroyasu Takehara 1997-01-14
5592122 Radio-frequency power amplifier with input impedance matching circuit based on harmonic wave Maeda Masahiro, Hiroyasu Takehara 1997-01-07