This inventor holds 3 USPTO granted patents. Top assignees: Kabushiki Kaisha Suwa Seikosha, Shinshu Seiki Kabushiki Kaisha. Active years: 1976-1978.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Matsumoto, JA (1976)
- Shiojiri, JA (1978)
Company Filing History:
3 out of 446 
3 out of 60 Years Active: 1976-1978
Title: Hiroshi Kamakura: Innovator in Circuit Design
Introduction
Hiroshi Kamakura is a notable inventor based in Matsumoto, Japan. He has made significant contributions to the field of circuit design, holding a total of 3 patents. His work focuses on improving the efficiency and functionality of electronic circuits.
Latest Patents
One of Kamakura's latest patents is a reference voltage circuit. This innovative circuit provides a fixed reference voltage while minimizing power consumption. It includes a fixed voltage element that is referenced to a stable voltage. A charge storage element is connected in series with a uni-directional current gating element, which is then coupled in parallel with the fixed voltage element. A voltage supply intermittently applies a referencing voltage across the fixed voltage element, allowing the charge storage element to be charged to a fixed reference voltage for a predetermined period.
Another significant patent is the stabilized brushless motor drive circuit. This circuit features at least one Hall effect element and a drive transistor circuit designed to energize two drive coils that operate the brushless motor. The amplitude of the signal applied to the drive coils is determined by the current supplied to the drive transistor circuit. A control circuit regulates the supplied current based on the motor's speed, ensuring consistent performance.
Career Highlights
Throughout his career, Hiroshi Kamakura has worked with prominent companies such as Kabushiki Kaisha Suwa Seikosha and Shinshu Seiki Kabushiki Kaisha. His experience in these organizations has contributed to his expertise in circuit design and innovation.
Collaborations
Kamakura has collaborated with notable coworkers, including Yoshihiro Mitsui and Takeshi Endo. Their combined efforts have led to advancements in the field of electronics and circuit design.
Conclusion
Hiroshi Kamakura is a distinguished inventor whose work in circuit design has led to several important patents. His contributions continue to influence the development of efficient electronic systems.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile