Inventor

FUJIWARA KEITARO

JP4 patents

⚠️ This page may combine multiple inventors who share the name “FUJIWARA KEITARO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SONY CORP

2 patents

US7853035B2Dec 14, 2010

Headphones and headphones placement device

SONY CORP12 citations81

US8983110B2Mar 17, 2015

Headphone device

SONY CORP0 citations48

FUJIWARA KEITARO

2 patents

US8767997B2Jul 1, 2014

Headphone device

FUJIWARA KEITARO3 citations56

US8213665B2Jul 3, 2012

Headphone

FUJIWARA KEITARO1 citations46