Inventor

OHYAMA TAKAHARU

JP4 patents

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

NIPPON TELEGRAPH & TELEPHONE

2 patents

US7397977B2Jul 8, 2008

Wave transmission medium and waveguide circuit

NIPPON TELEGRAPH & TELEPHONE20 citations91

US8916946B2Dec 23, 2014

Optical semiconductor device

NIPPON TELEGRAPH & TELEPHONE0 citations49

DOI YOSHIYUKI

1 patent

US8704322B2Apr 22, 2014

Optical semiconductor device

DOI YOSHIYUKI0 citations46

OHYAMA TAKAHARU

1 patent

US8545111B2Oct 1, 2013

Optical module

OHYAMA TAKAHARU1 citations44