Inventor
HASHIMOTO ETSU
JP14 patents
⚠️ This page may combine multiple inventors who share the name “HASHIMOTO ETSU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON TELEGRAPH & TELEPHONE
8 patentsUS7139491B2Nov 21, 2006
Laser oscillator, optical communication method and system
NIPPON TELEGRAPH & TELEPHONE25 citations92
US7050723B2May 23, 2006
Laser oscillator, optical communication method and system
NIPPON TELEGRAPH & TELEPHONE16 citations92
US6695471B2Feb 24, 2004
Method and apparatus for measuring temperature of movable object
NIPPON TELEGRAPH & TELEPHONE24 citations92
US10006831B2Jun 26, 2018
End face observation device
NIPPON TELEGRAPH & TELEPHONE5 citations71
US9588300B2Mar 7, 2017
Optical input/output device
NIPPON TELEGRAPH & TELEPHONE3 citations71
US7024122B2Apr 4, 2006
Ultrahigh-speed clock extraction circuit
NIPPON TELEGRAPH & TELEPHONE6 citations62
US6560007B2May 6, 2003
Bit-phase synchronized optical pulse stream local generator
NIPPON TELEGRAPH & TELEPHONE5 citations61
US9294826B2Mar 22, 2016
Wavelength selection switch system and method for controlling wavelength selection switch
NIPPON TELEGRAPH & TELEPHONE1 citations48
NTT ADVANCED TECH CORPORATION
4 patentsUS11880073B2Jan 23, 2024
Optical connector cleaning tool
NTT ADVANCED TECH CORPORATION2 citations71
US12222558B2Feb 11, 2025
Optical connector cleaning tool
NTT ADVANCED TECH CORPORATION0 citations60
US12321020B2Jun 3, 2025
Optical connector cleaning tool
NTT ADVANCED TECH CORPORATION0 citations44
US11911805B2Feb 27, 2024
Optical connector cleaning tool and optical connector cleaning tool attachment
NTT ADVANCED TECH CORPORATION0 citations43