MA

Masakazu Aoki

HI Hitachi: 6 patents #21 of 2,942Top 1%
HS Hitachi Tohbu Semiconductor: 1 patents #1 of 16Top 7%
HE Hitachi Vlsi Engineering: 1 patents #17 of 136Top 15%
Overall (1997): #2,450 of 185,788Top 2%
6
Patents 1997

Issued Patents 1997

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
5691952 Semiconductor memory device and memory module using the same Toshio Sasaki, Kazumasa Yanagisawa, Toshio Sugano, Kiyoshi Inoue, Seiichiro Tsukui +2 more 1997-11-25
5677880 Semiconductor memory having redundancy circuit Masashi Horiguchi, Jun Etoh, Yoshinobu Nakagome, Hitoshi Tanaka, Kiyoo Itoh 1997-10-14
5629898 Dynamic memory device, a memory module, and a method of refreshing a dynamic memory device Youji Idei, Katsuhiro Shimohigashi, Hiromasa Noda, Katsuyuki Sato, Hidetoshi Iwai +5 more 1997-05-13
5617365 Semiconductor device having redundancy circuit Masashi Horiguchi, Jun Etoh, Kiyoo Itoh 1997-04-01
5614847 Semiconductor integrated circuit device having power reduction mechanism Takayuki Kawahara, Ryoichi Hori, Masashi Horiguchi, Ryoichi Kurihara, Kiyoo Itoh +2 more 1997-03-25
5600163 Semiconductor element and semiconductor memory device using the same Kazuo Yano, Tomoyuki Ishii, Takashi Hashimoto, Koichi Seki, Takeshi Sakata +2 more 1997-02-04