Inventor
NAGAI KENJI
JP64 patents
⚠️ This page may combine multiple inventors who share the name “NAGAI KENJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
12 patentsUS6427065B1Jul 30, 2002
Power transmission system, IC card and information communication system using IC card
HITACHI LTD257 citations99
US6321067B1Nov 20, 2001
Power transmission system IC card and information communication system using IC card
HITACHI LTD217 citations99
US5281865AJan 25, 1994
Flip-flop circuit
HITACHI LTD155 citations98
US6765959B1Jul 20, 2004
Communication method of contactless ID card and integrated circuit used in communication method
HITACHI LTD44 citations96
US5523622AJun 4, 1996
Semiconductor integrated device having parallel signal lines
HITACHI LTD170 citations96
US5426784AJun 20, 1995
Serial to parallel data converting circuit
HITACHI LTD21 citations92
US6686750B2Feb 3, 2004
Semiconductor integrated circuit device and IC card
HITACHI LTD19 citations91
US4833474AMay 23, 1989
A/D converter
HITACHI LTD24 citations90
US5949823ASep 7, 1999
Data communication system and radio IC card system
HITACHI LTD11 citations74
US6420883B1Jul 16, 2002
Semiconductor integrated circuit device and IC card
HITACHI LTD13 citations72
US4562408ADec 31, 1985
Amplifier having a high power source noise repression ratio
HITACHI LTD9 citations72
US7116709B2Oct 3, 2006
Communication method of contactless ID card and integrated circuit used in communication method
HITACHI LTD3 citations63
HUAWEI TECH CO LTD
9 patentsUS11467633B2Oct 11, 2022
Hinge and mobile terminal
HUAWEI TECH CO LTD54 citations97
US11846997B2Dec 19, 2023
Rotating shaft mechanism and mobile terminal
HUAWEI TECH CO LTD22 citations94
US11336759B2May 17, 2022
Rotating shaft mechanism and mobile terminal
HUAWEI TECH CO LTD55 citations94
US12047521B2Jul 23, 2024
Rotation shaft structure and electronic device
HUAWEI TECH CO LTD18 citations93
US11914433B2Feb 27, 2024
Hinge and mobile terminal
HUAWEI TECH CO LTD24 citations93
US12332703B2Jun 17, 2025
Hinge and mobile terminal
HUAWEI TECH CO LTD6 citations85
US12316791B2May 27, 2025
Rotation shaft structure and electronic device
HUAWEI TECH CO LTD9 citations84
US11395424B2Jul 19, 2022
Rotating mechanism and foldable terminal
HUAWEI TECH CO LTD4 citations70
US12081686B2Sep 3, 2024
Hinge mechanism and foldable mobile terminal
HUAWEI TECH CO LTD4 citations66
TOKYO ELECTRON LTD
9 patentsUS10354896B2Jul 16, 2019
Position detection system and processing apparatus
TOKYO ELECTRON LTD3 citations73
US8941843B2Jan 27, 2015
Light interference system and substrate processing apparatus
TOKYO ELECTRON LTD2 citations63
US11513194B2Nov 29, 2022
Ranging apparatus and method using the ranging apparatus
TOKYO ELECTRON LTD0 citations62
US10199251B2Feb 5, 2019
Position detecting system and processing apparatus
TOKYO ELECTRON LTD1 citations62
US11710614B2Jul 25, 2023
Light interference system and substrate processing apparatus
TOKYO ELECTRON LTD0 citations58
US11869752B2Jan 9, 2024
System and method for transferring a focus ring into processing apparatus
TOKYO ELECTRON LTD0 citations52
US11817335B2Nov 14, 2023
Method and system for inspecting processing apparatus
TOKYO ELECTRON LTD0 citations52
US11668608B2Jun 6, 2023
Temperature measurement system and temperature measurement method
TOKYO ELECTRON LTD0 citations52
US10964575B2Mar 30, 2021
Transfer robot system, teaching method and wafer receptacle
TOKYO ELECTRON LTD0 citations52
FUJITSU LTD
6 patentsUS6385119B2May 7, 2002
Internal supply voltage generating cicuit in a semiconductor memory device and method for controlling the same
FUJITSU LTD32 citations93
US6925005B2Aug 2, 2005
AC sensing method memory circuit
FUJITSU LTD31 citations92
US5619465AApr 8, 1997
Semiconductor memory device
FUJITSU LTD19 citations92
US5508965AApr 16, 1996
Semiconductor memory device
FUJITSU LTD25 citations92
US6788588B2Sep 7, 2004
Asynchronous semiconductor memory device
FUJITSU LTD13 citations83
US6128238AOct 3, 2000
Direct sensing semiconductor memory device
FUJITSU LTD11 citations74
SPANSION LLC
4 patentsUS7706197B2Apr 27, 2010
Storage device and control method of storage device
SPANSION LLC2 citations63
US7106651B2Sep 12, 2006
Semiconductor memory device and method of reading data from semiconductor memory device
SPANSION LLC2 citations63
US7889573B2Feb 15, 2011
Time reduction of address setup/hold time for semiconductor memory
SPANSION LLC3 citations62
US7821842B2Oct 26, 2010
Synchronous memory devices and control methods for performing burst write operations
SPANSION LLC0 citations52
MORIC KK
2 patentsUNIV KYUSHU NAT UNIV CORP
2 patentsCANON KK
1 patent3M INNOVATIVE PROPERTIES CO
1 patentSONY CORP
1 patentKITA SANGYO KK
1 patentUNIDEN KK
1 patentYAMAWAKU JUN
1 patentShowing the top 50 of 64 patents by PatentIndex Score.