% Expired Patents = 9.1

Forward Citations = 255

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8 inventors (with patents filed for the assignee):

Yuji Oshikubo (6 out of 6 patents)

Yuuji Oshikubo (2 out of 2 patents)

Susumu Nakano (1 out of 22 patents)

4. Masashi Kobayashi (1 out of 20 patents)

5. Nobuyuki Baba (1 out of 2 patents)

6. Yuju Oshikubo (1 out of 1 patent)

7. Saijiro Suzuki (1 out of 1 patent)

8. Sadakazu Tanabe (1 out of 1 patent)

11 patents: Sort by Forward Citations

1. 6715369 - Hybrid pipette (2004-04-06),

2. 6006800 - Apparatus and method for automatic distribution (1999-12-28),

3. 5747709 - Repetitive pipette (1998-05-05),

4. 5021217 - Multipipet (1991-06-04),

5. 4909991 - Variable pipette (1990-03-20),

6. 4591072 - Repeating dispenser (1986-05-27),

7. 4399712 - Semi-automatic electro-mechanical pipette with controlled tip remover (1983-08-23),

8. 4306670 - Liquid dispensing device (1981-12-22),

9. 4261205 - Pipetting device (1981-04-14),

10. 4141251 - Pipetting device (1979-02-27),

11. 4091677 - Pipetting apparatus (1978-05-30),

Company Overview

Nichiryo Co., Ltd. is a prominent Japanese company specializing in the development and manufacturing of medical devices and laboratory equipment. With a focus on innovative solutions, Nichiryo is dedicated to enhancing healthcare and research capabilities through advanced technology. The company operates primarily in the medical and scientific sectors, providing products that support various applications, including diagnostics and laboratory analysis. Its commitment to quality and innovation positions Nichiryo as a key player in the global healthcare landscape.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

11 Patents

#1,808 in Tokyo

#4,139 in Japan

#51,801 in the World

Tokyo, Japan

Nichiryo Co., Ltd.

Forward Citations = 255

8 inventors:

Yuji Oshikubo (6 out of 6 patents)

Yuuji Oshikubo (2 out of 2 patents)

Susumu Nakano (1 out of 22 patents)

4. Masashi Kobayashi (1 out of 20 patents)

5. Nobuyuki Baba (1 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Nichiryo Co., Ltd.. Retrieved from https://idiyas.com/company/nichiryo-company

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

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]