Itsuka Ohno

Title: Innovations of Itsuka Ohno in Thermochromic Ink Technology

Introduction

Itsuka Ohno is a notable inventor based in Tokyo-to, Japan. He has made significant contributions to the field of ink technology, particularly with his innovative work on thermochromic ink compositions. His inventions have the potential to enhance the functionality and appeal of writing instruments.

Latest Patents

Ohno holds a patent for an "Aqueous ink composition for reversibly thermochromic writing instrument, and refill and aqueous ballpoint pen incorporating aqueous ink composition for reversibly thermochromic writing instrument." This patent describes a reversibly thermochromic aqueous ink composition that boasts excellent writability and minimizes issues such as colorant aggregation, increased viscosity, and reduced handwriting density. The composition includes a reversibly thermochromic microcapsule pigment encapsulated in a microcapsule formed from an organic resin, an N-vinyl-2-pyrrolidone polymer, glycerin, and water. The specific ratios of these components are crucial for achieving the desired properties of the ink.

Career Highlights

Ohno is associated with Kabushiki Kaisha Pilot Corporation, a company renowned for its innovative writing instruments. His work has contributed to the development of advanced writing technologies that cater to both functional and aesthetic needs.

Collaborations

Ohno collaborates with talented individuals such as Naoto Masushige and Mamiko Ogura, who contribute to the innovative environment at Pilot Corporation. Their teamwork fosters creativity and drives the development of cutting-edge products.

Conclusion

Itsuka Ohno's contributions to thermochromic ink technology exemplify the intersection of creativity and functionality in writing instruments. His innovative work continues to influence the industry and enhance user experience.