This inventor holds 3 USPTO granted patents. Top assignee: Sakura Color Products Corporation. Active years: 1997-2000.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Higashinari-ku, JP (1997)
- Osaka, JP (1998)
- Higashiosaka, JP (2000)
Company Filing History:
Years Active: 1997-2000
Title: The Innovative Contributions of Masakazu Yokoi
Introduction
Masakazu Yokoi is a notable inventor based in Higashiosaka, Japan. He has made significant contributions to the field of ink compositions, particularly for marking pens. With a total of 3 patents to his name, Yokoi's work showcases his dedication to innovation and quality in product development.
Latest Patents
Yokoi's latest patents include an ink composition for oil marking pens. This innovative ink composition comprises a coloring agent, an organic polar solvent, an oil-soluble resin, and an organically modified silicone. The organically modified silicone is selected from various types, including dimethyl silicone and alkyl-modified silicones, and is present in a proportion of 0.005 wt % to 10 wt %. The organic polar solvent is chosen from alcohol solvents and glycol ether solvents, while the oil-soluble resin includes options such as ketone resins and phenol resins. This composition is particularly effective on nonabsorbent surfaces like metal and plastic.
Another of his patents focuses on an ink composition for marking pens. This formulation includes a leafing type fine metal powder with a median particle size ranging from about 4 µm to about 11 µm. The powder is present in an amount between 10% to 38% by weight and is selected from materials such as copper alloy and aluminum. Additionally, the composition contains a petroleum resin and at least two kinds of hydrocarbon solvents, ensuring a high-quality product suitable for various applications.
Career Highlights
Masakazu Yokoi is associated with Sakura Color Products Corporation, a company renowned for its high-quality art supplies and writing instruments. His work at this organization has allowed him to develop innovative products that meet the needs of consumers and professionals alike.
Collaborations
Yokoi has collaborated with talented individuals such as Hirofumi Yamasaki and Yasuji Okuda. These partnerships have contributed to the successful development of his patented ink compositions.
Conclusion
Masakazu Yokoi's contributions to the field of ink compositions demonstrate his innovative spirit and commitment to quality. His patents reflect a deep understanding of materials and their applications, making him a valuable figure in the industry.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile