Yoichiro Iwase

This inventor holds 29 USPTO granted patents and 15 published patent applications, plus 1 CIPO patent and 17 EPO patents, primarily in Drug Delivery Devices. Top assignee: Terumo Kabushiki Kaisha. Active years: 2014-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoichiro Iwase. Retrieved from https://idiyas.com/inventor/yoichiro-iwase

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

USPTO Granted Patents = 29 (Patent Applications = 15)

% Patents Active = 96.6

CIPO Patents = 1

EPO Patents = 17 (Patent Applications = 27)

Average Co-Inventor Count = 2.5

ph-index = 4

Forward Citations = 50(Granted Patents)

Location History:

Ashigarakami-gun, JP (2014 - 2016)
Yamanashi, JP (2016 - 2020)
Kanagawa, JP (2014 - 2024)

Company Filing History:

29 out of 2,427

Terumo Kabushiki Kaisha

patents

Years Active: 2014-2025

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Areas of Expertise:

Injection Needle

Syringe Assembly

Liquid Medicine

Drug Injection

Needle Assembly

Pharmaceutical Device

Intraderma Injection

Medication Injector

Injection Apparatus

Drug Administration

Injection Aid

Syringe Holder

29 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12296143 - Liquid medicine administration device (2025-05-13),

2. 11938305 - Cap, syringe assembly and manufacturing method thereof (2024-03-26),

3. 11813440 - Intradermal needle, packaged article, and injection device (2023-11-14),

4. 11717617 - Intradermal needle, packaging article thereof, and injection device (2023-08-08),

5. 11672920 - Intradermal needle, packaged article, and injection device (2023-06-13),

6. 11511050 - Needle assembly (2022-11-29),

7. 10967134 - Injection needle assembly and medicine injection device (2021-04-06),

8. 10702653 - Syringe holder and pharmaceutical liquid administration set (2020-07-07),

9. 10688252 - Injection needle assembly and medicine injection apparatus (2020-06-23),

10. 10413681 - Syringe for injecting drug solution into upper layer of skin (2019-09-17),

11. 10413680 - Injection needle assembly and injector provided therewith for injecting drug solution into upper layer of skin (2019-09-17),

12. 10406289 - Drug injection syringe (2019-09-10),

13. 10398851 - Injection needle assembly and medicine injection device (2019-09-03),

14. 10335551 - Needle assembly and drug injection device (2019-07-02),

15. 10034981 - Syringe and syringe assembly (2018-07-31),

Title: Yoichiro Iwase: Champion of Innovation in Kanagawa

Introduction:

Yoichiro Iwase, a distinguished inventor based in Kanagawa, JP, has left an indelible mark on the world of innovation with his relentless pursuit of pushing boundaries and exploring new possibilities.

Latest Patents:

Iwase's latest patents showcase his ingenuity and commitment to improving medical devices. His inventions include a unique syringe assembly featuring a plate-shaped seal member and a tubular cover member, as well as an intradermal needle designed for enhanced precision and efficiency in healthcare applications.

Career Highlights:

With an impressive portfolio of 28 patents, Yoichiro Iwase has demonstrated his exceptional talent for devising innovative solutions across various fields. His contributions to companies like Terumo Kabushiki Kaisha have significantly impacted the medical industry, elevating standards and enhancing patient care.

Collaborations:

Throughout his career, Iwase has collaborated with esteemed professionals in the field, such as Kazunori Koiwai and Junichi Ogawa. Together, they have worked on groundbreaking projects that have set new benchmarks in the realm of medical technology.

Conclusion:

Yoichiro Iwase's legacy as a visionary inventor continues to inspire aspiring inventors and creators to embrace creativity and tenacity in their pursuits. His innovative spirit and unwavering dedication ensure that his impact will endure for generations to come, shaping the future of innovation in profound ways.

Profile summary based on public USPTO records.