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Introduction in English

YamashitaShigeru Yamashita, Professor, Ph.D.
College of Information Science and Engineering,
Ritsumeikan University
Building H, Osaka Ibaraki Campus, Ritsumeikan University, 2-150 Iwakura-cho, Ibaraki,
Osaka, 567-8570, Japan
TEL: +81-72-665-2966
E-mail: ger_at_fc.ritsumei.ac.jp (plese replace _at_　with @)

For those who are interested in studying in Japan

If you are interested in a topic that is somehow related to the following topics and want to find a place to study in Japan, 

Why don’t you write an email to me?

Our campus is near to Kyoto city, which should be the most interesting in Japan for most foreigners. (Indeed, I live in Kyoto.) 

I can provide a good environment to experience Japanese life here with my  Japanese students. For example, you can see a Message from an Indian student who was here for a total 3.5 months.

You can apply for MEXT Scholarship through our university. See this!

Research Topics

I am researching a possibility of new computing paradigm from various view points; from theoretical aspect to practical aspect. The following are one of my past/current research topics. The basic things to study here are based on algorithm/logic design, and programming.

Biochip Design (mainly, optimization methods, i.e., scheduling, placement & routing)

  • Sample Preparation Algorithm
  • Pin Minimization Algorithm

Quantum Computation and Communication (Mainly theoretical analysis, constructing new algorithms)

  • Quantum Circuit Design and Verification
  • Quantum Query Complexity
  • Quantum Network Coding
  • Quantum Cryptography
  • Quantum Sealing
  • Quantum Fault -Tolerant Computation

Approximate Computing

  • Approximate Adders for Image Processing
  • Approximate Multiplier

Highly Dependable LSI

  • Efficient duplication methods for logic circuits
  • Soft-error tolerant FPGA architecture
  • Logic Synthesis for error-tolerant cell library
  • Low overhead scheme for fault-tolerant circuits

Reconfigurable Computing (Mainly practical design issues)

Logic Synthesis (Mainly constructing new algorithms, and programming)

  • Threshold Logic Circuit Synthesis
  • Superconducting Circuit Synthesis

GPU Computing

Algorithm, efficient data structure, like BDDs

Awards and Honors

Education and Career

  • 1993 B.Eng. in Information Engineering, Faculty of Engineering, Kyoto University
  • 1995 M.Eng. in Information Engineering, Graduate School of Engineering, Kyoto University
  • 2001 Ph.D. in Informatics, Kyoto University
  • 1995 Researcher, NTT Communication Science Laboratories, Nippon Telegraph and Telephone Corporation (NTT)
  • 2000 Researcher (concurrent), ERATO Imai Quantum Computation and Information Project, Japan Science and Technology Agency (JST)
  • 2003 Associate Professor, Graduate School of Information Science, Nara Institute of Science and Technology (renamed Associate Professor in 2007 due to title change)
  • 2009-Present Professor, College of Information Science and Engineering, Ritsumeikan University
  • 2006 (Jun.-Jul.) Visiting Researcher, University of Victoria, Canada
  • 2006 (Oct.) Visiting Researcher, Portland State University, USA
  • 2012-2017  Visiting Professor, National Institute of Informatics, Japan
  • 2019-2025 Advisor, PRESTO Program on Quantum Information Processing, Japan Science and Technology Agency (JST)
  • 2019-2023 Part-time Lecturer, Graduate School of Information Science and Technology, University of Tokyo
  • 2020 Global Visiting Professor, Technical University of Munich, Germany

Publications

I do not put the pdf file in the list to avoid a potential copy right problem, etc. However, I can send you it personally. Please email me to ask my papers.

Longterm Visitors (Researchers or Students)

  • Internship student from Columbia University (USA)  Jan. 1 to Jan. 14, 2018
  • JSPS Bilateral Joint Research Project with Dr. Sudip Roy (Indian Institute of Technology Roorke)
    • Ankur Gupta (Nov.25, to Dec.19, 2017)
    • Dr. Sudip Roy (Feb. 2018)
  • Internship student from BITS Pilani University (India)  Dec.  16, 2016 to Jan. 24, 2017
  • Prof. Chun-Yao Wang (Taiwan) Jun.  10 to Aug. 8, 2016
  • Internship student from IIT Kanpur (India) May. 6, 2016 to May. 30 2016
  • Prof. Tsung-Yi Ho (Taiwan) Nov. 20, 2014 to Jan. 22, 2015
  • Internship student from IIT Guwahat (India) May. 8, 2012 to Jul. 14, 2012
  • Prof. Tsung-Yi Ho (Taiwan) Jan. 20, 2012 to Mar. 9, 2012
  • Internship student from IIT Kanpur (India) May. 11, 2015 to Jul. 21, 2015
  • A trainee from Mexico May 6, 2010 to Oct. 29, 2010
  • Dr. Byung-Soo Choi (Korea)  Jul. 27, 2010 to Sep. 1, 2010

I had many short-term visitors, and you are very welcome to come to here.  Please contact me. 

Grants and Research Funding

Grants-in-Aid for Scientific Research (KAKENHI), JSPS – Principal Investigator

  • Challenging Research (Exploratory): “A Design Theory of Quantum Circuits Handling Both Logical Values and Quantum Phases.” Jun. 2024 – Mar. 2026
  • Transformative Research Areas (A): “Creation of Innovative Foundations Connecting Quantum Algorithm Theory and Implementation.” Nov. 2020 – Mar. 2024
  • Scientific Research (B): “Establishment of Design Theory and Development of Practical Design Automation System for Lab-on-Chip.” Apr. 2020 – Mar. 2024
  • Challenging Research (Exploratory): “Design Theory of Measurement-Based Quantum Circuits.” Apr. 2018 – Mar. 2021
  • Scientific Research (B): “Hardware Design Methodology Utilizing Next-Generation Devices with Probabilistic Failures.” Apr. 2015 – Mar. 2020
  • Grant-in-Aid for Scientific Research on Innovative Areas (Proposed Research Area): “Approaches from Quantum Mechanics to Understanding the Limits of Computation.” Jun. 2012 – Mar. 2017
  • Scientific Research (B): “Establishment of Logic-Level Design Methods for Fault Avoidance with Minimum Area/Performance Overheads.” Apr. 2011 – Mar. 2015

Grants-in-Aid for Scientific Research (KAKENHI), JSPS – Co-Investigator

  • Scientific Research (A): “Establishing New Foundations of Quantum Optimization through Extended Formulation and Solving Problems via Both Classical and Quantum Computation.” (PI: Hiroshi Imai) Apr. 2015 – Mar. 2020
  • Scientific Research (A): “Clarifying the Limits of Quantum Computational Power via Quantum Graph Theory.” (PI: Hiroshi Imai) May 2011 – Mar. 2015

Other Major Competitive Funding

  • Strategic Basic Research Program (CREST, JST):
    “Exploring Methods for Utilizing Fault-Tolerant Quantum Computers through Cooperative Use with Classical Computing.” PI, Apr. 2024 – Mar. 2030
    (Research area: Frontiers of Co-Creation through Fusion of Quantum and Classical Fields)
  • Bilateral Joint Research Program, JSPS:
    Support for collaboration with Prof. Ankur Gupta (Netaji Subhas University of Technology, India). FY2024
  • International Joint Research Promotion Program: FY2024–2025
  • Asahi Glass Foundation Research Grant (Natural Sciences): FY2017
  • Bilateral Joint Research Program, JSPS:
    Support for collaboration with Prof. Sudip Roy (IIT Roorkee, India). FY2017
  • International Research Dissemination Program: FY2016
  • Joint Research with National Institute of Informatics (NII):
    “Quantum Circuit Design Based on Solovay–Kitaev Theory for TCSQC and Its Parallel Implementation Using GPUs.” FY2015
  • University-internal Basic Research Grant: “Design Theory of Digital Microfluidic Biochips through Integration of Physical and Logic Design.” FY2015
  • Joint Research with National Institute of Informatics (NII):
    “3D Compaction Problem for Topological Cluster State Quantum Computation.” FY2014
  • Academic Research Promotion Fund: “Design Methods for Reliable Circuits Using Highly Unreliable Next-Generation Devices.” FY2013
  • Joint Research with National Institute of Informatics (NII):
    “2D Qubit Layout Problems for Topological Cluster State Quantum Computation.” FY2013
  • Inamori Foundation Research Grant: “Establishment of Design Theory Enabling Efficient Modification of Specifications in Circuits Allowing Minimal Functional Rewriting.” FY2012
  • International Research Dissemination Program: FY2011
  • General Research Collaboration Program, National Institute of Informatics (NII):
    “Program Optimization Techniques for Topological Cluster State Quantum Computation.” FY2011
  • Group-type Research Program, Organization for Research and Development of Innovative Science and Technology:
    “Robust LSI Design Project.” FY2011

Short Bio

Shigeru Yamashita received his B. E., M. E. and Ph.D. degrees in information science from Kyoto University, Kyoto, Japan, in 1993, 1995 and 2001, respectively. In 1995, he joined NTT Communication Science Laboratories, where he engaged in research of computer aided design of digital systems and new type of computer architectures. During 2000 to 2003, he was also a researcher at Quantum Computation and Information, ERATO, Japan Science and Technology Corporation. During 2003 to 2009, he was an associate professor of Graduate School of Information Science, Nara Institute of Science and Technology. He was a visiting researcher at Univ. Victoria, and Portland State Univ. in 2006. 

He received the 2000 IEEE Circuits and Systems Society Transactions on Computer-Aided Design of Integrated Circuits and Systems Best Paper Award, SASIMI 2010 Best Paper Award, 2010 IPSJ Yamashita SIG Research Award, and 2010 Marubun Academic Achievement Award of the Marubun Research Promotion Foundation. He is a fellow of IPSJ, senior members of IEEE and IEICE, and a member of ACM.