Location History:
- Tokyo, JP (1995)
- Oota, JP (1996)
- Ohta, JP (1995 - 1997)
Company Filing History:
9 out of 2,208 
2 out of 2,861 
Years Active: 1995-1997
Title: Manpei Tamamura: Innovator in Vehicle Noise Reduction Technology
Introduction
Manpei Tamamura is a notable inventor based in Ohta, Japan. He has made significant contributions to the field of vehicle technology, particularly in noise reduction systems. With a total of 10 patents to his name, Tamamura's work has had a considerable impact on enhancing the driving experience.
Latest Patents
Tamamura's latest patents include a vehicle internal noise reduction system and the method thereof. This innovative system reduces noise by producing a canceling sound from a speaker based on a tap value formed and updated in an adaptive filter. The system is characterized by forming the tap value of the adaptive filter by convoluting a filter coefficient that has a similar band pass characteristic to the frequency characteristic of the speaker. This approach ensures stable operation of the noise reduction system without causing distortion or divergence. Another notable patent is a vehicle internal noise reduction system and method that attenuates vehicle internal noise sounds by generating a canceling sound synthesized with an engine-originated vibration noise source signal. This method prevents remaining noise sounds caused by insufficient follow-up characteristics of the adaptive filter during rapid deceleration or acceleration conditions of the engine.
Career Highlights
Throughout his career, Tamamura has worked with prominent companies such as Fuji Jukogyo Kabushiki Kaisha and Pioneer Electronic Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas in vehicle technology.
Collaborations
Tamamura has collaborated with several talented individuals in his field, including Hiroshi Iidaka and Eiji Shibata. These collaborations have contributed to the advancement of his projects and the successful implementation of his inventions.
Conclusion
Manpei Tamamura's contributions to vehicle noise reduction technology demonstrate his innovative spirit and dedication to improving the automotive industry. His patents reflect a commitment to enhancing the driving experience through advanced engineering solutions.