OKA SEIJI has a total of 12 patent applications. Its first patent ever was published in 1982. It filed its patents most often in United States and Japan. Its main competitors in its focus markets semiconductors, audio-visual technology and environmental technology are TAIWAN SEMICONDUCTOR MANFACTUR, OHKUCHI MAT CO LTD and THIN FILM MODULE INC.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 11 | |
#2 | Japan | 1 |
# | Industry | |
---|---|---|
#1 | Semiconductors | |
#2 | Audio-visual technology | |
#3 | Environmental technology |
# | Technology | |
---|---|---|
#1 | Semiconductor devices | |
#2 | Casings and printed circuits | |
#3 | Climate change mitigation in goods production |
# | Name | Total Patents |
---|---|---|
#1 | Oka Seiji | 12 |
#2 | Oi Takeshi | 5 |
#3 | Obiraki Yoshiko | 5 |
#4 | Yamaguchi Yoshihiro | 3 |
#5 | Yoshida Hiroshi | 2 |
#6 | Usui Osamu | 1 |
#7 | Tada Kazuhiro | 1 |
#8 | Ueda Tetsuya | 1 |
#9 | Nakayama Yasushi | 1 |
#10 | Idaka Shiori | 1 |
Publication | Filing date | Title |
---|---|---|
JPS5997688A | Running mechanism stopped and made runnable to arbitrary direction by remote control |