Decoded-source sense amplifier for high-density DRAMs. - Jun-ichi Okamura; Yoshio Okada; Masaru Koyanagi; Yoshiaki Takeuchi; Masahiro Yamada; Kiyofumi Sakurai; Sadao Imada; Suzuo Saito (IEEE J. Solid State Circuits, 1990)

A novel audio playback chip using digitally driven speaker architecture with 80%@-10dBFS power efficiency, 5.5W@3.3V supply and 100dB SNR. - Michitaka Yoshino; Mitsuhiro Iwaide; Daigo Kuniyoshi; Hajime Ohtani; Akira Yasuda; Jun-ichi Okamura (CICC, 2011)