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For the Inventor, By the Inventor

Kashiwa, Japan

Yasuo Hashino

This inventor holds 7 USPTO granted patents. Top assignees: Asahi Kasei Kogyo Kabushiki Kaisha, Morishita Pharm.. Active years: 1976-1989.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yasuo Hashino. Retrieved from https://idiyas.com/inventor/yasuo-hashino

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

USPTO Granted Patents = 7

% Patents Active = 100.0

Average Co-Inventor Count = 3.2

ph-index = 7

Forward Citations = 156(Granted Patents)


Location History:

  • Matsudoshi, JA (1976)
  • Fujishi, JA (1977)
  • Matsudo, JP (1980)
  • Fuji, JP (1981)
  • Kashiwa, JP (1980 - 1989)

Company Filing History:

goldMedal7 out of 1,297 
 
Asahi Kasei Kogyo Kabushiki Kaisha
 patents
silverMedal1 out of 1 
 
Morishita Pharm.
 patent
where one patent can have more than one assignee

Years Active: 1976-1989

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7 patents (USPTO):Explore Patents
1. 4822489 - Aromatic polysulfone type resin hollow fiber membrane and a process for (1989-04-18),
2. 4267053 - Inline intravenous final filter unit (1981-05-12),
3. 4208508 - Semipermeable membranes of polyaryl ether sulfones (1980-06-17),
4. 4181694 - Method for producing hollow fibers of acrylonitrile polymers for (1980-01-01),
5. 4061821 - Semipermeable composite membranes (1977-12-06),
6. 4002567 - Ultrafiltration apparatus (1977-01-11),
7. 3933653 - Membranes of acrylonitrile polymers for ultrafilter and method for (1976-01-20),

Title: Yasuo Hashino: Innovator in Medical Filtration Technology

Introduction

Yasuo Hashino is a prominent inventor based in Kashiwa, Japan. He has made significant contributions to the field of medical technology, particularly in the development of filtration systems for intravenous applications. With a total of 7 patents to his name, Hashino's work has had a lasting impact on patient care and safety.

Latest Patents

Among his latest innovations is the aromatic polysulfone type resin hollow fiber membrane. This technology is crucial for creating an inline intravenous final filter unit, specifically designed to retain bacteria. The filter unit features a casing with an inlet cap on one end and an outlet cap on the other. Inside, it contains at least one porous hollow fiber arranged parallel to the casing's longitudinal direction. The hollow fiber has a porosity rating of 0.1 to 5 micrometers, ensuring effective filtration. The design includes a securing member that tightly fixes the hollow fiber to the inner wall of the casing, with a filtration area to casing capacity ratio of at least 4:1.

Career Highlights

Yasuo Hashino has worked with notable companies in the industry, including Asahi Kasei Kogyo Kabushiki Kaisha and Morishita Pharmaceutical Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to advancements in medical technology.

Collaborations

Throughout his career, Hashino has collaborated with esteemed colleagues such as Fusakazu Hayano and Tsugio Konno. These partnerships have fostered innovation and have been instrumental in the development of his patented technologies.

Conclusion

Yasuo Hashino's contributions to medical filtration technology exemplify his dedication to improving patient care. His innovative patents and collaborations highlight his role as a key figure in the field.

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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