| 2011 | SoMeT | Designing a system to care for employees working apart. | Shogo Hayashida, Yohei Ogawa, Rikio Maruta |
| 2010 | SoMeT | Using Software to Make Sales Force Performance More Dynamic. | Rikio Maruta |
| 2009 | SoMeT | Evaluating Data Handling Performance of ISSEI Data Management Method. | Shogo Hayashida, Noriko Taniguchi, Kohei Sugawara, Rikio Maruta, W. Shoji |
| 2009 | SoMeT | A New Windows Desktop Icon for Single Point-of-Control of the Application Window. | Kohei Sugawara, Rikio Maruta |
| 2009 | SoMeT | On More Efficient Searching Methods for a Corporate Knowledge Database. | Noriko Taniguchi, Shogo Hayashida, Kohei Sugawara, Rikio Maruta |
| 2008 | SoMeT | Developing a Unique Collaborative System - "Optimization-Ware" Using a Novel Massive Data Retrieval/Management Approach. | Rikio Maruta, Shogo Hayashida, Noriko Taniguchi, Kohei Sugawara, M. Sengoku, W. Shoji |
| 2007 | SoMeT | A Unique Trial of Developing Software for the Actual Application by an Engineer with Non-Software Background. | Shogo Hayashida, Noriko Taniguchi, Rikio Maruta |
| 2007 | SoMeT | A Novel Intuitive GUI Method for User-Friendly Operation. | Kohei Sugawara, Rikio Maruta |
| 2006 | SoMeT | Unified OTP Cryptosystem with Authentication and Secrecy. | Osamu Atsumi, Shogo Hayashida, Rikio Maruta |
| 2006 | SoMeT | Transforming a Non-Software Company to a Software Company by Exploiting the LYEE Methodology. | Rikio Maruta, Noriko Taniguchi |
| 1985 | ICASSP | An oversampling A-to-D converter structure for VLSI digital codec's. | Akira Yukawa, Rikio Maruta, Kenji Nakayama |
| 1982 | ICASSP | A 32 kb/s toll quality ADPCM codec using a single chip signal processor. | Takao Nishitani, Shinichi Aikoh, Takashi Araseki, Kazunori Ozawa, Rikio Maruta |
| 1981 | ICASSP | An LSI chip set for DSP hardware implementation. | Akira Kanemasa, Rikio Maruta, Kenji Nakayama, Y. Sakamura, S. Tanaka |
| 1980 | ICASSP | LSI signal processor development for communications equipment. | Takao Nishitani, Yuichi Kawakami, Rikio Maruta, Akira Sawai |