Location History:
- Yuki, JP (2001 - 2012)
- Oyama, JP (2006 - 2015)
- Yuuki, JP (1999 - 2017)
- Chiyoda-ku, JP (2017)
- Tokyo, JP (2021 - 2024)
Company Filing History:
13 out of 2,737 
4 out of 228 
Years Active: 1999-2025
Title: Celebrating the Innovations of Tadashi Iijima: The Hinge Device Inventor
Introduction: Tadashi Iijima, an innovative inventor based in Tokyo, JP, has made significant contributions to mechanical engineering with his unique invention of a hinge device. With one patent to his name, Iijima's work reflects his dedication to enhancing functionality and efficiency in everyday mechanisms.
Latest Patents: Iijima's noteworthy patent describes a sophisticated hinge device that combines a damper hinge and a gravity hinge. The gravity hinge plays a critical role by converting the gravitational force of the door into rotational force, guiding the door's movement towards a closing direction. Complementing this is the damper hinge, which is designed to reduce the rotational force acting on the door as it closes. This mechanism cleverly incorporates a linear damper and dual cam members, providing a smooth and controlled closing action. His innovative approach ensures that as the door rotates and descends, the linear damper responds accordingly through cam interactions, enhancing the overall user experience.
Career Highlights: Throughout his career, Tadashi Iijima has been committed to exploring and developing mechanical solutions that address practical challenges. His background in engineering has equipped him with the skills necessary to design and patent devices that merge functionality with reliability. Iijima's invention of the hinge device serves as a testament to his innovative thinking and engineering expertise.
Collaborations: Iijima's patent journey has not been a solitary endeavor. He has collaborated with fellow inventor Kazuma Mori, demonstrating the value of teamwork in the innovative process. Their joint efforts have led to advancements in mechanical design, enriching the field with new ideas and solutions.
Conclusion: Tadashi Iijima stands out as a prominent figure in the realm of invention, showcasing the importance of innovation in everyday devices. His patented hinge device exemplifies the potential for engineering to address functional needs, proving that even the simplest mechanisms can benefit from creative ingenuity. As technology continues to evolve, inventors like Iijima will undoubtedly inspire future innovations and pave the way for further advancements in engineering design.