Inventor
HIRANO AKIRA
JP112 patents
⚠️ This page may combine multiple inventors who share the name “HIRANO AKIRA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON TELEGRAPH & TELEPHONE
14 patentsUS6865348B2Mar 8, 2005
Optical transmission method, optical transmitter, optical receiver, and optical transmission system
NIPPON TELEGRAPH & TELEPHONE70 citations96
US7536108B2May 19, 2009
High precision chromatic dispersion measuring method and automatic dispersion compensating optical link system that uses this method
NIPPON TELEGRAPH & TELEPHONE30 citations92
US7116917B2Oct 3, 2006
Optical transmitter and optical transmission system
NIPPON TELEGRAPH & TELEPHONE32 citations92
US6763197B1Jul 13, 2004
Optical transmitter and optical transmitter control method using variable duty ratio setting and alternate phase inversion for optical clock pulses
NIPPON TELEGRAPH & TELEPHONE33 citations92
US11159242B2Oct 26, 2021
Optical transmitter
NIPPON TELEGRAPH & TELEPHONE9 citations85
US8005374B2Aug 23, 2011
Optical transmission system, optical transmitter for optical transmission system, and optical receiver for optical transmission system
NIPPON TELEGRAPH & TELEPHONE10 citations83
US7734194B2Jun 8, 2010
Optical transmission system, optical transmitter for optical transmission system, and optical receiver for optical transmission system
NIPPON TELEGRAPH & TELEPHONE16 citations83
US6983085B2Jan 3, 2006
Optical transmission circuit
NIPPON TELEGRAPH & TELEPHONE12 citations82
US11546064B2Jan 3, 2023
Optical transmission system and transmission mode selecting method
NIPPON TELEGRAPH & TELEPHONE4 citations73
US11516073B2Nov 29, 2022
Malfunction point estimation method and malfunction point estimation apparatus
NIPPON TELEGRAPH & TELEPHONE3 citations72
US10823989B2Nov 3, 2020
Bias control circuit and bias control method
NIPPON TELEGRAPH & TELEPHONE4 citations72
US10615868B2Apr 7, 2020
Communication system and fault detection method
NIPPON TELEGRAPH & TELEPHONE4 citations72
US10511381B2Dec 17, 2019
Communication system and fault location specifying method
NIPPON TELEGRAPH & TELEPHONE4 citations72
US10313015B2Jun 4, 2019
Optical transmitter and bias voltage control method
NIPPON TELEGRAPH & TELEPHONE6 citations72
OSAKA GAS CO LTD
6 patentsUS5376347ADec 27, 1994
Uniform inorganic micropheres and production thereof
OSAKA GAS CO LTD72 citations94
US6118519ASep 12, 2000
Method for measuring the flow of fluids
OSAKA GAS CO LTD18 citations92
US5147735ASep 15, 1992
Method of operating a solid electrolyte fuel cell
OSAKA GAS CO LTD30 citations92
US6276217B1Aug 21, 2001
Method of measuring fluid flow by analyzing the fluorescent emissions of tracer particles in the fluid
OSAKA GAS CO LTD20 citations91
US5979245ANov 9, 1999
Method of measuring fluid flow by analyzing the fluorescent emissions from tracer particles in the fluid
OSAKA GAS CO LTD19 citations91
US6414748B1Jul 2, 2002
Method for measuring the flow of fluids
OSAKA GAS CO LTD4 citations73
ASAHI GLASS CO LTD
5 patentsUS5264286ANov 23, 1993
Laminated glass structure
ASAHI GLASS CO LTD68 citations96
US5108479AApr 28, 1992
Process for manufacturing glass with functional coating
ASAHI GLASS CO LTD38 citations93
US5132161AJul 21, 1992
Window glass for automobile with a heat reflective layer and an antenna conductor
ASAHI GLASS CO LTD39 citations92
US5070230ADec 3, 1991
Electrically heatable windshield
ASAHI GLASS CO LTD50 citations92
US5066102ANov 19, 1991
Combiner for head-up display and glass with durable reflective coating
ASAHI GLASS CO LTD16 citations74
NEC CORP
5 patentsUS5858562AJan 12, 1999
Organic thin film electroluminescent device
NEC CORP65 citations95
US4591908AMay 27, 1986
Method and apparatus for adaptive predictive encoding/decoding of multi-level picture signals
NEC CORP23 citations82
US5998046ADec 7, 1999
Green light emitting organic thin film electroluminescent device
NEC CORP12 citations74
US5733697AMar 31, 1998
Photoreceptor for electrophotography
NEC CORP14 citations74
US5667925ASep 16, 1997
Electrophotographic photosensitive product
NEC CORP13 citations71
SOKO KAGAKU CO LTD
5 patentsUS9502606B2Nov 22, 2016
Nitride semiconductor ultraviolet light-emitting element
SOKO KAGAKU CO LTD19 citations92
US9450157B2Sep 20, 2016
Ultraviolet light emitting device using metal non-bondable amorphous fluororesin molding compound
SOKO KAGAKU CO LTD23 citations89
US11152543B2Oct 19, 2021
Nitride semiconductor light-emitting element
SOKO KAGAKU CO LTD5 citations72
US11049999B2Jun 29, 2021
Template, nitride semiconductor ultraviolet light-emitting element, and method of manufacturing template
SOKO KAGAKU CO LTD6 citations72
US11217726B2Jan 4, 2022
Nitride semiconductor ultraviolet light-emitting element
SOKO KAGAKU CO LTD2 citations71
HONDA MOTOR CO LTD
4 patentsUS6836970B2Jan 4, 2005
Wheel alignment measuring method and apparatus
HONDA MOTOR CO LTD25 citations93
US4901560AFeb 20, 1990
Roller clamp type wheel examining apparatus
HONDA MOTOR CO LTD35 citations90
US7040026B2May 9, 2006
Wheel runout measuring method
HONDA MOTOR CO LTD15 citations82
US4962664AOct 16, 1990
Roller clamp type wheel examining apparatus
HONDA MOTOR CO LTD21 citations80
NIPPON ELECTRIC CO
2 patentsFUJITSU LTD
1 patentMASAOKA SHINYA
1 patentUV CRAFTORY CO LTD
1 patentPERNOT CYRIL
1 patentASAHI GLASS COMPANY INC
1 patentTAKARA HIDEHIKO
1 patentKONISHIROKU PHOTO IND
1 patentAMANO HIROSHI
1 patentHIRANO AKIRA
1 patentShowing the top 50 of 112 patents by PatentIndex Score.