YAMADA ATSUSHI has a total of 24 patent applications. Its first patent ever was published in 1979. It filed its patents most often in United States, Japan and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets semiconductors, audio-visual technology and packaging and shipping are HITACHI IRUMA DENSHI KK, KUB FRANCIS J and HIGH POWER OPTO INC.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 15 | |
#2 | Japan | 8 | |
#3 | WIPO (World Intellectual Property Organization) | 1 |
# | Technology | |
---|---|---|
#1 | Semiconductor devices | |
#2 | Special information storage | |
#3 | Elevators and escalators | |
#4 | AC and DC conversion devices | |
#5 | Amplifiers | |
#6 | Antennas | |
#7 | Refrigerators | |
#8 | Devices using light amplification | |
#9 | Lifting and pushing | |
#10 | Nanostructure applications |
# | Name | Total Patents |
---|---|---|
#1 | Yamada Atsushi | 24 |
#2 | Abei Jun | 1 |
#3 | Ota Aun | 1 |
#4 | Kikugawa Tomoyuki | 1 |
#5 | Nagashima Yasuaki | 1 |
#6 | Inoue Seiji | 1 |
#7 | Ichikawa Norimoto | 1 |
#8 | Kawashima Tooru | 1 |
#9 | Amamiya Yoshifumi | 1 |
#10 | Hasegawa Etsuo | 1 |
Publication | Filing date | Title |
---|---|---|
JP2008067375A | Sound propagation path type speaker system | |
WO2007129774A2 | Acoustic transmission path, speaker system using the same and tube module for assembly kit of acoustic transmission path | |
JP2006345498A | Sound propagation path and speaker system using it, and tube module for assembly kit of sound propagation path | |
JP2005301188A | Sound absorbing structure | |
JP2000052698A | Honeycomb canvas for painting | |
JPH10127799A | Smoke-preventive dangling wall device interlocking with smoke sensor | |
JPH10102925A | Molded plate sash | |
JPH0970461A | Spherical bell | |
JPS55124845A | Digital multiplier |