Building bridges – between technology, law, people and cultures.

Naoko Ritter

Dipl.-Phys., Bachelor of Science
Patent Professional

+49 89 69 39 21-0ritter@pruefer.eu

Professional career

Naoko Ritter has been working for Prüfer & Partner since 2011.
Before that, she worked as a patent engineer at a patent attorney’s office in Tokyo.
After studying physics at the University of Hamburg, she also worked as a research associate at the Institute of Laser Physics in Hamburg. Before working as a development engineer at the Research Centre for Semiconductor Technology at Toshiba Co. in Japan, she studied physics at the University of Sophia in Tokyo.

Japanese (mother tongue), German, English

Specialist areas of activity


  • patent issue proceedings before the EPO and DPMA
  • participating in opposition proceedings and infringement proceedings


  • Patent prosecution in the fields of:
    • semiconductor technology (components, manufacturing processes, manufacturing machines)
    • electronic components
    • optics, laser technology
    • medical technology
    • mechanics/mechanical engineering (automotive engineering, industrial equipment)
    • computer-related inventions

Publications and memberships


“Hot Electron Injection Characteristics in Asymmetrically Structured Submicron MOSFETs“, Jap. J. of Appl. Phys. Let., Vol.28, No.1, p.21, 1989

“A Surrounding Gate Transistor (SGT) Cell for 64/256 Mbit DRAMs“, IEEE Proceedings of the IEDM (International Electron Devices Meeting), p.23, 1989


No memberships