Inventor
OHISHI YASUTAKE
JP15 patents
⚠️ This page may combine multiple inventors who share the name “OHISHI YASUTAKE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON TELEGRAPH & TELEPHONE
12 patentsUS6417963B1Jul 9, 2002
Optical fiber splicing structure
NIPPON TELEGRAPH & TELEPHONE30 citations92
US6356387B1Mar 12, 2002
Tellurite glass, optical amplifier, and light source
NIPPON TELEGRAPH & TELEPHONE23 citations92
US6266181B1Jul 24, 2001
Tellurite glass, optical amplifier, and light source
NIPPON TELEGRAPH & TELEPHONE22 citations92
US6236496B1May 22, 2001
Optical fiber amplifier and optical amplification method
NIPPON TELEGRAPH & TELEPHONE36 citations92
US5668659ASep 16, 1997
Optical fibers for optical amplifiers
NIPPON TELEGRAPH & TELEPHONE44 citations92
US5071460ADec 10, 1991
Process for the preparation of fluoride glass and process for the preparation of optical fiber preform using the fluoride glass
NIPPON TELEGRAPH & TELEPHONE36 citations92
US5486947AJan 23, 1996
Optical fiber for optical amplifier
NIPPON TELEGRAPH & TELEPHONE16 citations81
US5351335ASep 27, 1994
Optical fiber for optical amplifier
NIPPON TELEGRAPH & TELEPHONE18 citations81
US6278719B1Aug 21, 2001
Lasers, optical amplifiers, and amplification methods
NIPPON TELEGRAPH & TELEPHONE12 citations73
US6205164B1Mar 20, 2001
Lasers, optical amplifiers, and amplification methods
NIPPON TELEGRAPH & TELEPHONE13 citations73
US5774620AJun 30, 1998
Fluoride glass fiber
NIPPON TELEGRAPH & TELEPHONE9 citations73
US5145508ASep 8, 1992
Method of making fluoride glass using barium β-diketones
NIPPON TELEGRAPH & TELEPHONE9 citations73