| 2013 | EDUCON | Increase teachers' presence and immediacy in slide videos. | Jianxia Cao, Akinori Nishihara |
| 2013 | ISCAS | Acoustic feedback neutralization in digital hearing aids - A two adaptive filters-based solution. | Muhammad Tahir Akhtar, Akinori Nishihara |
| 2011 | PSIVT | Iterative Gradient-Driven Patch-Based Inpainting. | Sarawut Tae-O-Sot, Akinori Nishihara |
| 2009 | ISCAS | Relationship between Consecutive Frames in Generalized Harmonics Analysis for Predictive Coding. | Hisayori Noda, Akinori Nishihara |
| 2008 | DICTA | Rigid Image Registration by Using Corner and Edge Contents with Application to Super-Resolution. | Duangnapa Wangrattanapranee, Akinori Nishihara |
| 2008 | ICIW | New Learning Services: Customized and Secured Evaluation. | Rosario Gil, Elio San Cristbal, Sergio Martn, Gabriel Daz, Manuel Castro, Juan Peire, Akinori Nishihara |
| 2005 | ISCAS | New graph transformation schemes in graph-based memory allocation method for an indirect addressing DSP. | Nobuhiko Sugino, Tomoyuki Matsuura, Akinori Nishihara |
| 2004 | ISCAS | Fast and efficient algorithm to design noise-shaping FIR filters for high-order overload-free stable sigma-delta modulators. | Mitsuhiko Yagyu, Akinori Nishihara |
| 2003 | ISCAS | Concise representation and cellular structure for universal maximally flat FIR filters. | Saed Samadi, Akinori Nishihara |
| 2002 | ISCAS | Step-response-based characterization of nonuniform perfect-reconstruction filter banks. | Saed Samadi, Akinori Nishihara, M. Omair Ahmad, M. N. S. Swamy |
| 2001 | ASPDAC | A high-speed FIR digital filter with CSD coefficients implemented on FPGA. | Mitsuru Yamada, Akinori Nishihara |
| 2001 | ISCAS | Response of maximally flat lowpass filters to polynomial signals. | Saed Samadi, Akinori Nishihara |
| 2000 | ISCAS | Explicit formula for generalized half-band maximally flat diamond-shaped filters. | Saed Samadi, Akinori Nishihara |
| 1999 | ISCAS | Generalized half-band maximally flat FIR filters. | Saed Samadi, Akinori Nishihara, Hiroshi Iwakura |
| 1999 | ISCAS | Memory address allocation method for a indirect addressing DSP with consideration of modification in local computational order. | Nobuhiko Sugino, Harushige Funaki, Akinori Nishihara |
| 1997 | ICASSP | Adaptive AR spectral estimation based on multi-band decomposition of the linear prediction error with variable forgetting factors. | Fernando Gil Vianna Resende Jr., Paulo S. R. Diniz, Mineo Kaneko, Akinori Nishihara |
| 1997 | ICASSP | Minimization of finite wordlength error in 2-D FIR digital filters in the frequency domain. | Mitsuhiko Yagyu, Akinori Nishihara, Nobuo Fujii |
| 1996 | ICASSP | Two-channel multifilter banks and multiwavelets. | Todor Cooklev, Akinori Nishihara, Masaki Kato, Michael Sablatash |
| 1995 | ICASSP | Regular multidimensional linear phase FIR digital filter banks and wavelet bases. | Todor Cooklev, Akinori Nishihara, Toshiyuki Yoshida, Michael Sablatash |
| 1995 | ISCAS | Design of FIR Digital Filters with Minimum Weight Representation. | Mitsuhiko Yagyu, Toshiyuki Yoshida, Akinori Nishihara, Nobuo Fujii |
| 1994 | ISCAS | Modular Realization of Bandstop and Bandpass FIR Digital Filters. | Saed Samadi, Akinori Nishihara, Nobuo Fujii |
| 1993 | ISCAS | Maximally flat FIR filters. | Todor Cooklev, Akinori Nishihara |
| 1986 | ICASSP | Design of limit-cycle-free digital biquad filters. | Akinori Nishihara |