Hisatoshi Tanaka

Title: Hisatoshi Tanaka: Inventor in Recording Technologies.

Introduction

Hisatoshi Tanaka is an inventor associated with Kawasaki, Japan, and Kabushiki Kaisha Toshiba. His patent work includes technologies for ink-jet recording and reversible data storage. His portfolio includes 4 patents.

Latest Patents

Tanaka’s listed patents address two distinct approaches to recording and displaying information.

- **Ink jet recording apparatus and recording method for using ink walls in …** describes an ink-jet apparatus that uses ink containing fine particles whose apparent viscosity changes in response to an electric field. A voltage-applying unit forms the field, aligning the particles into ink walls that create flow channels. The apparatus uses those channels to discharge ink and form images on a recording medium according to recording information.

- **Recording medium using reversible recording material and method of …** describes a data-storage medium with two display portions on a substrate. The first portion uses a recording material that stores data with one recording energy and can erase stored usage-history data with a specified erasing energy. The second portion displays the same data but uses a different recording energy, and its stored data cannot be erased.

Career Highlights

Tanaka’s listed inventions demonstrate work on controlling ink flow through electrically formed particle structures and on recording media that combine erasable and non-erasable data. Both inventions concern how information is recorded or presented through specialized materials and apparatus.

Collaborations

His listed coworkers include Shinichi Itoh and Takashi Yamaguchi. The provided information does not specify their roles or the details of their collaboration.

Conclusion

Hisatoshi Tanaka’s patent portfolio reflects contributions to image formation and data-storage technologies, including electrically controlled ink-jet channels and recording media with distinct data-retention properties.