Inventor · disambiguated record
Hisashi Iwata
Also filed as: IWATA HISASHI
4 granted patents·3 pending applications·47 citations·filing 1988–2025
70Inventor score
Files withNHK SPRING CO LTD2FUJI YAKUHIN KOGYO KK1KK PILOT CORPORATION ALSO TRADING AS PILOT CORPORATION1MARUNO SHIGEO1PILOT CORPORATION KK1
Top patents by PatentIndex Score
7 records- 0171US11667146B2Writing toolPILOT CORPORATION KK·Filed 2019·Granted Jun 6, 2023·1 cites·11 claims
- 0265US5077132ABiocompatible composite material and a method for producing the sameMARUNO SHIGEO·Filed 1989·Granted Dec 31, 1991·43 cites·14 claims
- 0364US2025178069A1Coiling machine and production method for coil springsNHK SPRING CO LTD·Filed 2025·Application pending·0 cites
- 0460US2025178068A1Coiling machine and coil spring manufacturing methodNHK SPRING CO LTD·Filed 2025·Application pending·0 cites
- 0557US7942598B2Writing implementPILOT INK CO LTD·Filed 2005·Granted May 17, 2011·1 cites·17 claims
- 0643US2025332858A1Attachment structure in writing instrument, writing instrument, and soft memberKK PILOT CORPORATION ALSO TRADING AS PILOT CORPORATION·Filed 2022·Application pending·0 cites
- 0729US5190861AMethod for the diagnosis of rheumatoid arthritisFUJI YAKUHIN KOGYO KK·Filed 1988·Granted Mar 2, 1993·2 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →