Inventor · disambiguated record
Takao Hirayama
Also filed as: HIRAYAMA TAKAO · TANAKA SHIGEYOSHI
13 granted patents·1 pending application·198 citations·filing 1978–2012
93Inventor score
Top patents by PatentIndex Score
14 records- 0182US6692793B2Photo-cured film, and photosensitive element, printed wiring board and semiconductor package using such filmHITACHI CHEMICAL CO LTD·Filed 2001·Granted Feb 17, 2004·16 cites·15 claims
- 0274US6238840B1Photosensitive resin compositionHITACHI CHEMICAL CO LTD·Filed 1998·Granted May 29, 2001·38 cites·12 claims
- 0369US6100768ARing oscillator generating pulse signal at constant pulse period under unstable power voltageNEC CORP·Filed 1998·Granted Aug 8, 2000·24 cites·11 claims
- 0464US4309330ACopolymer emulsionHITACHI CHEMICAL CO LTD·Filed 1981·Granted Jan 5, 1982·22 cites·9 claims
- 0564US4301048AWater-dispersed resin compositionHITACHI CHEMICAL CO LTD·Filed 1980·Granted Nov 17, 1981·18 cites·6 claims
- 0662US6583198B2Photo curable resin composition and photosensitive elementHITACHI CHEMICAL CO LTD·Filed 1998·Granted Jun 24, 2003·15 cites·9 claims
- 0762US6060215APhotosensitive resin composition and application of its photosensitivityHITACHI CHEMICAL CO LTD·Filed 1998·Granted May 9, 2000·22 cites·15 claims
- 0857US7071243B2Photo-cured film, and photosensitive element, printed wiring board and semiconductor package using such filmHITACHI CHEMICAL CO LTD·Filed 2004·Granted Jul 4, 2006·3 cites·12 claims
- 0955US4154709AWater-dispersible epoxy modified alkyd resinsHITACHI CHEMICAL CO LTD·Filed 1978·Granted May 15, 1979·9 cites·16 claims
- 1053US7049036B1Photosensitive resin composition, photosensitive element using the same, method for producing resist pattern, resist pattern and substrate having the resist pattern laminated thereonHITACHI CHEMICAL CO LTD·Filed 2000·Granted May 23, 2006·6 cites·31 claims
- 1153US5166288ACoating composition for coating metal plateNIPPON STEEL CORP·Filed 1989·Granted Nov 24, 1992·13 cites·5 claims
- 1246US8953406B2Semiconductor module includes semiconductor chip initialized by reset signalNISHIO YOJI·Filed 2012·Granted Feb 10, 2015·0 cites·14 claims
- 1346US5885723ABonding film for printed circuit boardsHITACHI CHEMICAL CO LTD·Filed 1997·Granted Mar 23, 1999·12 cites·12 claims
- 1439US2002169226A1Photo-cured film, and photosensitive element, printed wiring board and semiconductor package using such filmFiled 2002·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →