Shigeki Ishii

Title: Shigeki Ishii: Innovator in Electronic Musical Instruments

Introduction

Shigeki Ishii is a notable inventor based in Hamamatsu, Japan. He has made significant contributions to the field of electronic musical instruments, holding a total of five patents. His innovative designs have enhanced the functionality and user experience of electronic music devices.

Latest Patents

One of Ishii's latest patents is a rhythm tone source assigning apparatus for use in electronic musical instruments. This apparatus features a memory with multiple storing regions that correspond to various input operating manipulators, such as keyboard keys or switches. By writing a tone source identifying datum into these storing regions, users can easily assign rhythm tone sources to the manipulators. This design greatly simplifies the performing and inputting operations for users, allowing for a more convenient arrangement of operating manipulators tailored to individual preferences.

Another significant patent is an envelope generator for electronic musical instruments. This generator produces an envelope waveshape control voltage with distinct attack, first decay, and second decay sections. The control voltage is derived from a series of voltage divider networks, which are connected in a way that allows for the generation of complex waveshape control voltages. The output nodes of these networks are accessed at different clock rates, enabling a scanning circuit to sequentially enable gate pairs. This innovative approach allows for the interpolation of provided voltages, resulting in a versatile envelope waveshape control voltage.

Career Highlights

Shigeki Ishii is associated with Nippon Gakki Seizo Kabushiki Kaisha, a company renowned for its contributions to musical instrument manufacturing. His work has significantly impacted the design and functionality of electronic musical instruments, making them more user-friendly and versatile.

Collaborations

Ishii has collaborated with notable coworkers, including Teruo Hiyoshi and Akira Nakada. Their combined expertise has contributed to the advancement of technology in the field of electronic music.

Conclusion

Shigeki Ishii's innovative patents and contributions to electronic musical instruments have made a lasting impact on the industry. His work continues to inspire advancements in music technology, enhancing the creative possibilities for musicians worldwide.