This inventor holds 15 USPTO granted patents and 4 published patent applications and 2 EPO patents, primarily in Medical Devices. Top assignees: Nec Corporation, Kyocera Corporation, Nec Viewtechnology, Ltd.. Active years: 1990-2023.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Osaka, JP (1990 - 1998)
- Osaka-fu, JP (2001)
- Tokyo, JP (1999 - 2023)
Company Filing History:





Years Active: 1990-2023
Areas of Expertise:
Title: Innovator Katsuyuki Takeuchi - A Pioneer in Syringe Technology
Introduction: Katsuyuki Takeuchi, a prominent inventor based in Tokyo, Japan, holds an impressive portfolio of 15 patents. His innovations particularly focus on syringe technology, enhancing both usability and functionality in medical applications.
Latest Patents: Among his latest achievements, Takeuchi has developed a syringe barrel and pre-filled syringe. The syringe barrel features a hollow body portion designed to accommodate a gasket that can be slidably inserted. This innovative design incorporates resin that allows for a total light transmittance of 80% or more. A crucial aspect is the scale, which is displayed on either the inner or outer circumferential surface, enabling easy visibility for liquid measurement. The scale utilizes a stepped structure with a height range from 0.001 to 0.15 mm or an embossment for accurate readings. Furthermore, Takeuchi's syringe body for pre-filled syringes consists of a hollow body portion with a proximal-end opening and a distal-end nozzle. Constructed from cyclic olefin polymer or copolymer, this design emphasizes a sturdy structure, with the thick body portion accounting for 80% or more of its length, boasting a wall thickness between 2.23 to 2.40 mm.
Career Highlights: Takeuchi has made significant contributions to the field through his work at leading technology companies, such as NEC Corporation and NEC Viewtechnology, Ltd. His innovative designs have positioned him at the forefront of medical technology, focusing on improving the efficiency of syringes.
Collaborations: Throughout his career, Takeuchi has collaborated with esteemed colleagues, including Ryuuji Yamada and Nobukazu Akaike. These partnerships have spurred further innovation and research, adding depth to his works and contributing to the advancement of the syringe industry.
Conclusion: Katsuyuki Takeuchi's inventive spirit is exemplified through his extensive patents and collaborations. His dedication to enhancing syringe technology continues to influence medical practices, solidifying his reputation as a valuable inventor in this domain.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile