KT

Kazumasa Takenaka

Sumitomo Electric Industries: 18 patents #1,247 of 21,551Top 6%
ON onsemi: 2 patents #740 of 1,901Top 40%
📍 Ora, JP: #4 of 108 inventorsTop 4%
Overall (All Time): #223,267 of 4,157,543Top 6%
20
Patents All Time

Issued Patents All Time

Showing 1–20 of 20 patents

Patent #TitleCo-InventorsDate
9607984 Common drain semiconductor device structure and method Hidehito Koseki 2017-03-28
8779507 Insulated gate semiconductor device Takuji Miyata 2014-07-15
D425534 Surveillance camera Kanji Mutoh 2000-05-23
D425535 Surveillance camera Kanji Mutoh 2000-05-23
D307426 Telephone set Fumiharu Ohta 1990-04-24
D303390 Telephone set Fumiharu Ohta 1989-09-12
D299228 Integral telephone and answering set Teisuke Kurosu, Fumiharu Ohta, Masao Tamura, Hung C. Ming, Satoshi Watanabe 1989-01-03
D298936 Telephone set with display panel and speakerphone Fumiharu Ohta, Satoshi Watanabe 1988-12-13
D297935 Telephone Teisuke Kurosu, Fumiharu Ohta 1988-10-04
D285553 Telephone set with automatic dialer and speaker phone Haruo Baba, Teisuke Kurosu, Fumiharu Ohta, Satoshi Watanabe 1986-09-09
D284467 Telephone answering machine Haruo Baba, Teisuke Kurosu, Fumiharu Ohta, Satoshi Watanabe 1986-07-01
D279372 Telephone answering machine with handset Haruo Baba, Teisuke Kurosu, Fumiharu Ohta, Satoshi Watanabe 1985-06-25
D278144 Combined tape recorder and radio receiver Benito Mishiro, Kikuo Ohta, Kunio Hoshino, Katsutoshi Kido 1985-03-26
D273380 Combined radio and cassette tape recorder 1984-04-10
D269442 Electronic translator Iwao Nakajima 1983-06-21
D267717 Clock radio Shinzo Murakami, Kikuo Ohta, Masanori Hamada, Kunio Hoshino 1983-01-25
D266664 Combined radio receiver and tape recorder Kunio Hoshino, Teruyuki Nishimoto, Shuhei Taguchi, Kikuo Ohta, Benito Mishiro 1982-10-26
D262367 Combined cassette recorder and radio receiver Iwao Nakajima, Benito Mishiro 1981-12-22
D262110 Portable radio Katsutoshi Kido, Yoichi Hisano 1981-12-01
D259785 Combined tape recorder and radio receiver Keizo Kushida, Toshio Igo, Munenori Fujimoto, Kunio Hoshino, Satoru Usami +2 more 1981-07-07