Inventor
HIROTA KATSUMI
JP15 patents
⚠️ This page may combine multiple inventors who share the name “HIROTA KATSUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SONY CORP
10 patentsUS6889043B2May 3, 2005
Method of controlling a communication terminal having a plurality of functions, communication terminal apparatus, communication control system
SONY CORP55 citations95
US7130631B2Oct 31, 2006
Method of controlling a communication terminal having a plurality of functions, communication terminal apparatus, communication control system
SONY CORP16 citations92
US7050573B2May 23, 2006
Method of generating ring tones using melody and communication terminal apparatus
SONY CORP27 citations92
US5594459AJan 14, 1997
Retractable/extensible antenna with inner and outer sections having a feed point coil and end mounted coil
SONY CORP27 citations92
US5952974ASep 14, 1999
Antenna assembly and portable radio apparatus
SONY CORP14 citations74
US6987970B2Jan 17, 2006
Method of controlling a communication terminal having a plurality of functions, communication terminal apparatus, communication control system
SONY CORP8 citations73
US11240442B2Feb 1, 2022
Signal processing apparatus and signal processing method
SONY CORP0 citations62
US7162240B2Jan 9, 2007
Method of controlling a communication terminal having a plurality of functions, communication terminal apparatus, communication control system
SONY CORP3 citations62
US7139572B2Nov 21, 2006
Method of controlling a communication terminal having a plurality of functions, communication terminal apparatus, communication control system
SONY CORP3 citations62
US6031358AFeb 29, 2000
Short protection circuit for rechargable battery
SONY CORP6 citations62
HITACHI LTD
4 patentsUS6750602B2Jun 15, 2004
Projection type cathode ray tube device employing a cathode ray tube having a neck composed of different-diameter portions
HITACHI LTD11 citations69
US5894190AApr 13, 1999
Color cathode ray tube having a large-diameter lens
HITACHI LTD6 citations63
US6737818B2May 18, 2004
Deflection yoke and cathode ray tube device
HITACHI LTD3 citations62
US7091677B2Aug 15, 2006
Deflection yoke and cathode ray tube device
HITACHI LTD0 citations51