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For the Inventor, By the Inventor

Isesaki, Japan

Ryosaku Tagaya

This inventor holds 11 USPTO granted patents. Top assignee: Eisai Company, Limited. Active years: 1976-1997.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Ryosaku Tagaya. Retrieved from https://idiyas.com/inventor/ryosaku-tagaya

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 11

% Patents Active = 100.0

Average Co-Inventor Count = 1.8

ph-index = 7

Forward Citations = 96(Granted Patents)


Location History:

  • Isezaka, JA (1976)
  • Isezaki, JA (1977)
  • Gunma, JP (1985 - 1986)
  • Isesaki, JP (1979 - 1997)

Company Filing History:

goldMedal11 out of 677 
 
Eisai Company, Limited
 patents

Years Active: 1976-1997

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11 patents (USPTO):Explore Patents
1. 5615007 - Method of detecting crack and chip in flange of syringe (1997-03-25),
2. 4664525 - Method and apparatus for detecting inferior container (1987-05-12),
3. 4615622 - Process for detecting resident air in a liquid charged receptacle and (1986-10-07),
4. 4577969 - Testing method for subjects to be tested and a device for said method (1986-03-25),
5. 4551022 - Testing method by a spectroscopic photometry using three wavelengths of (1985-11-05),
6. 4274745 - Method and apparatus for detecting foreign matters in liquids (1981-06-23),
7. 4241256 - Apparatus for detecting foreign matters in liquids (1980-12-23),
8. 4158625 - Method and apparatus for detecting and screening foreign matters (1979-06-19),
9. 4058737 - Method and apparatus for detecting extraneous solid substances contained (1977-11-15),
10. 4058736 - Method and apparatus for inspecting extraneous solid substances (1977-11-15),
11. 3942897 - Method and apparatus for detecting solid substances contained in liquid (1976-03-09),

Title: Ryosaku Tagaya: Innovator in Detection Technologies

Introduction

Ryosaku Tagaya is a prominent inventor based in Isesaki, Japan. He has made significant contributions to the field of detection technologies, holding a total of 11 patents. His innovative methods have advanced the way we identify flaws in various containers and medical devices.

Latest Patents

One of Tagaya's latest patents is a method of detecting cracks and chips in the flange of a syringe. This method involves illuminating light from the side of the flange and processing the image signal from the reflected light using a TV or CCD camera. By analyzing the irregularities in the image signal, cracks or chips can be easily recognized. Another notable patent is a method and apparatus for detecting inferior containers. In this method, light beams are projected in two different directions onto a transparent or semitransparent test container while it is rotated. Both transmitted and reflected beams are received by a common photo-receptive surface, allowing for the detection of inferior containers through shadows formed in the composite image.

Career Highlights

Ryosaku Tagaya is associated with Eisai Company, Limited, where he has been able to apply his innovative ideas in practical settings. His work has not only contributed to the company's success but has also enhanced safety and quality in medical and packaging industries.

Collaborations

Tagaya has collaborated with notable coworkers, including Toshio Takahashi and Mikio Tagaya. Their combined expertise has fostered a creative environment that encourages innovation and the development of new technologies.

Conclusion

Ryosaku Tagaya's contributions to detection technologies exemplify the impact of innovation in improving safety and quality in various applications. His patents reflect a commitment to advancing technology for better outcomes in medical and packaging fields.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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