YH

Yoshiaki Hachiya

Sumitomo Electric Industries: 11 patents #2,408 of 21,551Top 15%
PA Panasonic: 9 patents #2,933 of 21,108Top 15%
📍 Moriyama, JP: #112 of 2,577 inventorsTop 5%
Overall (All Time): #220,863 of 4,157,543Top 6%
20
Patents All Time

Issued Patents All Time

Showing 1–20 of 20 patents

Patent #TitleCo-InventorsDate
11517007 Pest control apparatus Kazushige Sugita, Takashi Maniwa, Makoto Yamada 2022-12-06
10898600 Disinfecting method and disinfecting apparatus Kazushige Sugita, Takashi Maniwa, Makoto Yamada 2021-01-26
9137860 Illumination light source and lighting apparatus Hiroshi Fujita, Kazuhiko Itoh, Kazuo Gouda 2015-09-15
8023292 Switching control device 2011-09-20
7834828 Led driving semiconductor apparatus provided with controller including regulator and drain current detector of switching element block Ryutaro Arakawa, Takashi Kunimatsu, Minoru Fukui 2010-11-16
7638954 Light emitting diode drive apparatus Takashi Kunimatsu, Ryutaro Arakawa, Minoru Fukui 2009-12-29
7511929 Switching power supply and semiconductor device used therefor 2009-03-31
7508254 Reference supply voltage circuit using more than two reference supply voltages Ryutaro Arakawa, Takashi Kunimatsu, Minoru Fukui 2009-03-24
7439719 Switching control circuit with off period adjustment Ryutarou Arakawa, Takashi Kunimatsu, Minoru Fukui 2008-10-21
7426121 Output voltage detection circuit, isolated switching power supply, and semiconductor device 2008-09-16
7348766 Switching power supply device Ryutaro Arakawa, Minoru Fukui, Takashi Kunimatsu 2008-03-25
7321223 Switching power supply apparatus 2008-01-22
7167028 Voltage detection circuit, power supply unit and semiconductor device 2007-01-23
7167382 Semiconductor device 2007-01-23
7115888 LED driving semiconductor circuit and LED driving apparatus including the same Ryutaro Arakawa 2006-10-03
6812682 Switching power supply unit and semiconductor device for switching power supply 2004-11-02
6534829 Semiconductor device and method for fabricating the same Seiji Sogo, Yuji Ueno, Seiki Yamaguchi, Yoshihiro Mori, Satoru Takahashi +2 more 2003-03-18
6294903 Switching power supply Tetsuji Yamashita, Yoshihiro Mori, Yuji Yamanishi 2001-09-25
6069501 Semiconductor device Yuji Yamanishi, Yoshihiro Mori 2000-05-30
6005350 Electroluminescent driving apparatus with photodetector Yuji Yamanishi, Yuji Ueno 1999-12-21