Tohoku Pioneer Electronic Corporation

Patent Owner

Watch Compare Add to Portfolio

Stats

Details

Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H04R LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS 5102
 
  
 
G10K SOUND-PRODUCING DEVICES 233
 
  
 
G11B INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER 2136
 
  
 
H01J ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS 2126
 
  
 
B29C SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 1124
 
  
 
G02B OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS 1204
 
  
 
H03F AMPLIFIERS 182
 
  
 
H05B ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR 1110

Top Patents (by citation)

Upgrade to the Professional Level to View Top Patents for this Owner. Learn More

Recent Publications

  • No Recent Publications to Display

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6393188 Dispersion compensation device and optical transmission system with the sameSep 02, 99May 21, 02[G02B]
6285124 Organic EL display panel having a conductive high polymer layer between an anode layer and an organic EL layerJan 06, 99Sep 04, 01[H01J]
6236733 LoudspeakerJun 03, 99May 22, 01[H04R]
6030561 Methods for making a loudspeaker vibrating diaphragmJan 07, 98Feb 29, 00[B29C]
5999633 Speaker damperSep 16, 97Dec 07, 99[H04R]
5982104 Driver for capacitive light-emitting device with degradation compensated brightness controlNov 22, 96Nov 09, 99[H05B]
5892185 Speaker unit and a method for manufacturing the sameMay 28, 97Apr 06, 99[G10K]
5882761 Organic EL elementNov 19, 96Mar 16, 99[H01J]
5822444 LoudspeakerNov 26, 96Oct 13, 98[H04R]
5793002 Loudspeaker vibrating diaphragm and methods for its productionJul 02, 97Aug 11, 98[G10K]

View all patents..

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7801324 Speaker apparatusExpiredMar 31, 06Sep 21, 10[H04R]
7704428 Method for manufacturing diaphragm for use in electroacoustic transducerExpiredApr 26, 05Apr 27, 10[B29C]
7706560 Speaker apparatusExpiredOct 26, 05Apr 27, 10[H04R]
7577270 Dome-shaped diaphragm and speakerExpiredMay 17, 05Aug 18, 09[H04R]
7319774 SpeakerExpiredMar 03, 05Jan 15, 08[H04R]
7103195 Speaker unitExpiredSep 16, 97Sep 05, 06[H04R]
6948994 Masks for forming strengthened electrodes of a light emission display panelExpiredApr 17, 03Sep 27, 05[H01J]
6921309 Method for manufacturing a light emission display panelExpiredApr 17, 03Jul 26, 05[H01J, B05D]
6817084 Method for manufacturing a speaker apparatusExpiredJan 07, 02Nov 16, 04[H04R]
6788799 Speaker device and associated method for manufacturing the speaker deviceExpiredNov 30, 99Sep 07, 04[H04R]
6597798 LoudspeakerExpiredDec 01, 98Jul 22, 03[H04R]
6473376 Text information reproducing apparatusExpiredApr 27, 99Oct 29, 02[G11B]
6373187 Display panel using organic electroluminescent material and method for the manufacture thereofExpiredMay 18, 98Apr 16, 02[H01J]
6373795 Apparatus for reproducing an optical discExpiredMar 19, 99Apr 16, 02[G11B]
2002/0017,858 LIGHT EMISSION DISPLAY PANEL HAVING ELECTRODES WITH PARTIALLY OVERLAPPED PORTIONSAbandonedMay 05, 98Feb 14, 02[H01J]
6343136 Speaker apparatus and manufacturing method thereofExpiredMar 24, 98Jan 29, 02[H04R]
6317277 Optical pickup deviceExpiredJun 23, 99Nov 13, 01[G02B]
6262956 Reproducing apparatus with improved access to text informationExpiredApr 27, 99Jul 17, 01[G11B]
6154556 Dome speakerExpiredNov 02, 98Nov 28, 00[H04R]
6137220 Organic electroluminescent display with protective film and trapezoidal wallsExpiredMay 04, 98Oct 24, 00[H01J]

View all patents..

Top Inventors for This Owner

Upgrade to the Professional Level to View Top Inventors for this Owner. Learn More

We are sorry but your current selection exceeds the maximum number of comparisons () for this membership level. Upgrade to our Level for up to -1 comparisons!

We are sorry but your current selection exceeds the maximum number of portfolios (0) for this membership level. Upgrade to our Level for up to -1 portfolios!.