Inventors with similar research interests:
Location History:
- Hitachi, JA (1976 - 1977)
- Tarrytown, NY (US) (1989)
- Hitachi, JP (1978 - 1998)
Company Filing History:
54 out of 42,485 
3 out of 152 Years Active: 1976-1998
Title: Innovations by Takao Sasayama: A Pioneer in Engine Technology and Pressure Sensors
Introduction
Takao Sasayama, an esteemed inventor based in Hitachi, Japan, boasts an impressive portfolio of 54 patents. His work primarily focuses on enhancing the efficiency and reliability of multi-cylinder engines and innovative pressure sensing technologies, making significant contributions to the engineering and automotive industries.
Latest Patents
Among his recent innovations, two standout patents illustrate his groundbreaking work:
1. **In-cylinder Pressure Sensing Apparatus for Multi-cylinder Engine**: This invention involves a sophisticated apparatus designed for detecting internal pressures across multiple cylinders of an engine. It includes several sensing parts strategically packaged between the cylinder head and the cylinder block. A detection circuit connects these sensing parts in series, allowing for overlapping detection of signals indicative of each cylinder's internal pressure. A reference signal generator further enhances the precision of this system by aiding in the separation of individual cylinder signals from an overlapped output.
2. **Optical Fiber Pressure Sensor**: This sensor utilizes the principle of optical power loss to measure pressure based on configuration changes in an optical fiber. It features a luminescence device connected to the optical fiber, coupled with a light intercepting device that captures the light reflected through the fiber. Notably, the sensor is designed to function optimally when the normalization frequency V value is less than 90% of a defined cut-off frequency, ensuring accurate pressure measurements.
Career Highlights
Sasayama has had a distinguished career at notable companies such as Hitachi, Ltd. and Hitachi Automotive Engineering Co., Ltd. His experience in these organizations has facilitated his development of innovative technologies, contributing to advancements in automotive engineering and sensor technology.
Collaborations
Throughout his career, Sasayama has collaborated with esteemed colleagues, including Kazuo Kato and Matsuo Amano. These partnerships have fostered a productive environment for creativity and technological advancement, leading to numerous patented inventions.
Conclusion
Takao Sasayama continues to be a prominent figure in the landscape of mechanical engineering and sensor technologies. His impressive array of patents not only demonstrates his innovative spirit but also paves the way for future advancements in engine efficiency and pressure sensing methodologies. Through his contributions, Sasayama has undoubtedly left a lasting impact on the industry.
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