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For the Inventor, By the Inventor

Sakura, Japan

Yuji Oshikubo

This inventor holds 6 USPTO granted patents. Top assignee: Nichiryo Co., Ltd.. Active years: 1978-1990.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yuji Oshikubo. Retrieved from https://idiyas.com/inventor/yuji-oshikubo

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

USPTO Granted Patents = 6

% Patents Active = 100.0

Average Co-Inventor Count = 1.2

ph-index = 6

Forward Citations = 94(Granted Patents)


Location History:

  • Sakura, JA (1978)
  • Sakura, JP (1979 - 1986)
  • Chiba, JP (1990)

Company Filing History:

goldMedal6 out of 11 
 
Nichiryo Co., Ltd.
 patents

Years Active: 1978-1990

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6 patents (USPTO):Explore Patents
1. 4909991 - Variable pipette (1990-03-20),
2. 4591072 - Repeating dispenser (1986-05-27),
3. 4399712 - Semi-automatic electro-mechanical pipette with controlled tip remover (1983-08-23),
4. 4261205 - Pipetting device (1981-04-14),
5. 4141251 - Pipetting device (1979-02-27),
6. 4091677 - Pipetting apparatus (1978-05-30),

Title: Innovations by Yuji Oshikubo

Introduction

Yuji Oshikubo is a notable inventor based in Sakura, Japan. He has made significant contributions to the field of laboratory equipment, particularly in the design of pipettes and dispensers. With a total of six patents to his name, his work has enhanced the accuracy and reliability of liquid handling in scientific research.

Latest Patents

One of his latest inventions is a variable pipette. This innovative device allows for a variable volumetric capacity for sucking and discharging samples. The design includes a first-stage stroke that is independent of the body of the pipette, ensuring that temperature-induced expansion does not affect its performance. This feature significantly improves the reproducibility of quantitative determinations, thereby enhancing the reliability of the device.

Another notable invention is a repeating dispenser. This device is designed to dispense uniform quantities of liquid efficiently. It features an actuator that is rotatably connected to an actuating button, which is biased upward by a spring. The design allows for repeated dispensing of liquid in a controlled manner, making it a valuable tool in laboratory settings.

Career Highlights

Yuji Oshikubo has dedicated his career to advancing laboratory technology. His work at Nichiryo Co., Ltd. has positioned him as a key figure in the development of innovative liquid handling solutions. His patents reflect a commitment to improving the accuracy and efficiency of laboratory processes.

Collaborations

Throughout his career, Yuji has collaborated with notable colleagues such as Sadakazu Tanabe and Saijiro Suzuki. These partnerships have contributed to the successful development of his inventions and have fostered a collaborative environment for innovation.

Conclusion

Yuji Oshikubo's contributions to laboratory equipment through his innovative patents have significantly impacted the field. His work continues to enhance the reliability and efficiency of liquid handling in scientific research.

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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