| 2024 | IECON | Design Method of Effective Passband Flat Variable FIR Filters for Weight Measurement. | Toma Miyata, Yasunori Sugita, Naoyuki Aikawa |
| 2019 | IECON | A Design Method for Linear Phase FIR Filters with Multiple Variable Factors in the Stopband and Specified High Attenuation. | Toma Miyata, Takahiro Natori, Naoyuki Aikawa |
| 2018 | ISITA | Adaptive Notch Howling Canceller Using Group Delay Information. | Nobuhiro Mikami, Kanji Mashita, Naoyuki Aikawa |
| 2016 | IECON | A GA-based optimization for multi-band digital filters with the sameness conditions of filter coefficients. | Masayoshi Nakamoto, Tomohiro Hirakawa, Naoyuki Aikawa, Torn Yamamoto |
| 2016 | IECON | A design method for 2-D low-pass maximally flat FIR digital filter to realize various passband shapes. | Taiki Shinohara, Yasuyuki Nishida, Naoyuki Aikawa |
| 2015 | ISCAS | A general expression of the low-pass maximally flat FIR digital differentiators. | Takashi Yoshida, Yosuke Sugiura, Naoyuki Aikawa |
| 2013 | IECON | Designing IIR filters with variable stopbands using SP method. | Toma Miyata, Naoyuki Aikawa, Yasuyuki Nishida |
| 2013 | IECON | A design method of TYPE IV digital FIR differentiators with maximally flat criterion at an arbitrary frequency. | Takashi Yoshida, Naoyuki Aikawa |
| 2012 | ISITA | A design method for FIR filters with complex coefficients by Successive Projection method. | Toma Miyata, Kosuke Teramoto, Naoyuki Aikawa |
| 2012 | ISITA | An L1-method for designing FIR digital filters with complex coefficients. | Ikuya Murakami, Yukio Mori, Naoyuki Aikawa |
| 2010 | ISITA | A design method for IIR digital filters with variable stopband using semidefinite programming. | Nanako Ubayama, Toma Miyata, Naoyuki Aikawa |
| 2005 | ICINCO | A design method of two-dimensional linear phase fir filters using Fritz John's theorem. | Yasunori Sugita, Naoyuki Aikawa |
| 2004 | ICINCO | Design of Low Delay Bandpass FIR Filters with Maximally Flat Characteristics in the Passband and the Transmission Zeros in the Stopband. | Yukio Mori, Naoyuki Aikawa |
| 2003 | ICASSP | Kernel with block structure for sampling rate converter. | Naoyuki Aikawa, Yukio Mori |
| 2003 | ICASSP | A design method of minimum phase FIR filters with complex coefficients. | Yasunori Sugita, Naoyuki Aikawa |
| 2002 | ICASSP | Minimax approximation of minimum phase FIR filters. | Yasunori Sugita, Naoyuki Aikawa |
| 2002 | ISCAS | A design method of low delay lowpass FIR filters with maximally flat characteristics in the passband and the transmission zeros in the stopband. | Naoyuki Aikawa, Masamitsu Sato |
| 2001 | ISCAS | The transfer function of low delay maximally flat lowpass FIR digital filters. | Yukio Mori, Naoyuki Aikawa |
| 2000 | ISCAS | A design method of low delay FIR bandpass filters. | Atsushi Ogata, Naoyuki Aikawa, Masamitsu Sato |