Inventors with similar research interests:
Company Filing History:
53 out of 53 
7 out of 349 
2 out of 127 Years Active: 1978-2023
Areas of Expertise:
Title: Hirofumi Kawashima: Innovator in Quartz Crystal Technology
Introduction: Hirofumi Kawashima, a prominent inventor based in Tokyo, Japan, has made significant contributions to the field of quartz crystal technology. With an impressive portfolio of 64 patents, Kawashima has established himself as a key figure in the development of innovative quartz crystal resonators, units, and oscillators.
Latest Patents: Among his latest inventions are several patents related to quartz crystal systems. One notable patent describes a quartz crystal unit featuring a resonator with a base portion and first and second tuning fork arms. The design includes specific measurements, such as the base portion being less than 0.5 mm in length and the tuning fork arms having widths less than 0.1 mm. Additionally, grooves formed in the tuning fork arms contribute to the unit's functionality. Another patent highlights a quartz crystal unit with multiple components, including a case and a resonator with distinct widths and lengths for optimal performance. These inventions demonstrate Kawashima's commitment to advancing quartz crystal technology.
Career Highlights: Throughout his career, Hirofumi Kawashima has worked with notable companies in the electronics sector, such as Piedek Technical Laboratory and Kabushiki Kaisha Daini Seikosha. His tenure at these organizations has allowed him to develop and refine cutting-edge technologies related to quartz crystals.
Collaborations: Kawashima has collaborated with several talented individuals in his field, including Akira Watanabe and Yasunori Ebihara. These partnerships have fostered a creative environment, enabling the development of innovative solutions that have contributed to the advancement of quartz crystal applications.
Conclusion: Hirofumi Kawashima stands out as a distinguished inventor whose work in quartz crystal technology continues to influence the industry. His extensive patent portfolio and collaborative efforts reflect a dedication to innovation and excellence in his field. As advancements in technology progress, Kawashima's contributions will likely remain significant in shaping the future of quartz crystal applications.