Location History:
- Kanagawa, JP (2010 - 2020)
- Yokohama, JP (2003 - 2022)
Company Filing History:
8 out of 586 
4 out of 210 
3 out of 107 
Years Active: 2003-2024
Title: **Norihisa Hirota: A Pioneer in Aluminum Can Innovations**
Introduction
Norihisa Hirota is a distinguished inventor based in Kanagawa, Japan, known for his impactful contributions to the field of aluminum can design and manufacturing. With a total of 13 patents to his name, Hirota has made significant advancements in enhancing the functionality and aesthetics of aluminum cans.
Latest Patents
Among his latest innovations, Hirota has developed a unique aluminum can that features a maximum height of roughness Rz1 of not more than 0.5 μm on the outer surface of its thinnest portion. This design, as observed from the side surface, maintains a ratio Ra1/Ra2 ranging from 0.8 to 1.2, where Ra1 and Ra2 represent the mean surface roughness in the circumferential direction at different portions of the can.
Another notable patent involves an aluminum can that possesses a ratio C/C of 0.6 to 1.4 when assessed using the LCH method with a multi-angle spectral colorimeter. This innovative design ensures the saturation value of light reflected at specified angles exhibits optimized characteristics, enhancing both the can's appearance and reflective properties.
Career Highlights
Hirota has held key positions at renowned companies such as Toyo Seikan Kaisha, Ltd. and Toyo Seikan Group Holdings, Ltd., where he has been instrumental in driving forward innovative packaging solutions. His career at these companies has solidified his reputation as a leading inventor in the industry.
Collaborations
Throughout his career, Hirota has collaborated with notable colleagues, including Yutaka Asano and Jotaro Nagao. Together, they have contributed to the development of advanced packaging technologies that meet the evolving needs of manufacturers and consumers alike.
Conclusion
Norihisa Hirota stands out as a remarkable inventor whose work in aluminum can technology has paved the way for improved product designs in the packaging industry. His patents exemplify a commitment to innovation and quality, ultimately contributing to enhanced user experience and environmental sustainability in can manufacturing.