P

Inventor

ISHIKAWA YOSHIHIRO

JP112 patents
⚠️ This page may combine multiple inventors who share the name “ISHIKAWA YOSHIHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

NTT DOCOMO INC

19 patents
US7218617B1May 15, 2007

Transmission method of downlink pilot channel in CDMA mobile communication system, and CDMA mobile communication system

NTT DOCOMO INC35 citations93
US7929592B1Apr 19, 2011

Channel estimation device and method, demodulation device and method, and fading frequency decision device and method

NTT DOCOMO INC16 citations92
US7193978B2Mar 20, 2007

Communications system employing a scheme of radio channel setting control

NTT DOCOMO INC28 citations92
US7693106B1Apr 6, 2010

Neighboring base station information update method, information management method for cell search in mobile communications system, cell search method of mobile station, mobile communications system, mobile station, base station and control station

NTT DOCOMO INC18 citations84
US7492721B2Feb 17, 2009

Traffic measurement device and traffic measurement method

NTT DOCOMO INC13 citations84
US7437152B2Oct 14, 2008

Control method of searching neighboring cells, mobile station, and mobile, communication system

NTT DOCOMO INC10 citations84
US7301991B2Nov 27, 2007

Fading frequency decision device and method

NTT DOCOMO INC10 citations84
US7194266B2Mar 20, 2007

Handover control method, mobile station and communication control apparatus

NTT DOCOMO INC16 citations84
US7167718B2Jan 23, 2007

Transmission power control apparatus, transmission power control method, and mobile station

NTT DOCOMO INC16 citations84
US7139571B1Nov 21, 2006

Cell search control method, mobile station and mobile communications system

NTT DOCOMO INC12 citations84
US7103364B2Sep 5, 2006

Call acceptance controlling apparatus and method thereof

NTT DOCOMO INC15 citations84
US7024186B1Apr 4, 2006

Communication performance calculation method and communication performance calculation apparatus in mobile communication system, and blocking probability calculation method and blocking probability calculation apparatus in communication system, and recording medium

NTT DOCOMO INC14 citations84
US6999427B1Feb 14, 2006

CDMA reception apparatus and received signal power measuring apparatus in CDMA mobile communication system

NTT DOCOMO INC12 citations84
US6907250B2Jun 14, 2005

Wireless channel changeover method and mobile communication system

NTT DOCOMO INC17 citations84
US6983039B2Jan 3, 2006

Call admission control method and communication system to which method is applied

NTT DOCOMO INC11 citations82
US7245914B2Jul 17, 2007

Operation data creating method and apparatus for mobile communication system and storage medium

NTT DOCOMO INC7 citations74
US7120446B2Oct 10, 2006

Call admission control method, communication system and base station device

NTT DOCOMO INC8 citations74
US6873626B2Mar 29, 2005

Control system, control method, and radio network controller preferably used for the system and method

NTT DOCOMO INC8 citations74
US6968197B2Nov 22, 2005

Apparatus and method for acquisition of communication quality

NTT DOCOMO INC5 citations73

NIPPON TELEGRAPH & TELEPHONE

6 patents

FUJI PHOTO FILM CO LTD

5 patents

MITSUMI ELECTRIC CO LTD

3 patents

MAKITA CORP

3 patents

RINNAI KK

2 patents

EGUCHI HARUKI

2 patents

TAKENAKA KOMUTEN CO

2 patents

AMERICAN CYANAMID CO

2 patents

ISHIKAWA YOSHIHIRO

2 patents

NIT DOCOMO INC

1 patent

IHI CORP

1 patent

FUJIFILM CORP

1 patent

TORAY INDUSTRIES

1 patent

Showing the top 50 of 112 patents by PatentIndex Score.