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For the Inventor, By the Inventor

Tokyo, Japan

Izumi Waki

This inventor holds 58 USPTO granted patents and 7 published patent applications and 7 EPO patents, primarily in Mass Spectrometry (CPC class G01N). Top assignees: Hitachi, Ltd., Hitachi-High-Technologies Corporation, National Research Institute of Police Science. Active years: 1997-2017.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Izumi Waki. Retrieved from https://idiyas.com/inventor/izumi-waki

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

USPTO Granted Patents = 58 

% Patents Active = 50.0

 

Average Co-Inventor Count = 3.3

ph-index = 11

Forward Citations = 520(Granted Patents)

Forward Citations (Not Self Cited) = 489(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Asaka, JP (1997 - 2006)
  • Tokyo, JP (2005 - 2017)

Company Filing History:

goldMedal31 out of 42,731 
 
Hitachi, Ltd.
 patents
silverMedal27 out of 2,874 
 
Hitachi-High-Technologies Corporation
 patents
bronzeMedal2 out of 3 
 
National Research Institute of Police Science
 patents
4. 1 out of 496 
 
Applera Corporation
 patents
where one patent can have more than one assignee

Years Active: 1997-2017

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Areas of Expertise:
Solid-Phase Extraction
Mass Analyzing Apparatus
Ionization Method
Specimen Processing
Immunoanalytical Method
Gas Component Collector
Chemical Substance Detection
Ion Trap Mass Spectrometer
Gas Monitoring Apparatus
Ion-Mobility Spectrometer
Mass Spectrometric Apparatus
Mass Analysis Method
58 patents (USPTO):Explore Patents
1. 9597612 - Analysis device including solid-phase extraction material filling and discharging mechanisms (2017-03-21),
2. 9494496 - Solid-phase extraction apparatus and viscosity measurement apparatus (2016-11-15),
3. 9377445 - Ionization method, ionization apparatus, and mass analysis system (2016-06-28),
4. 9207152 - Pretreatment apparatus and mass analyzing apparatus equipped with the same (2015-12-08),
5. 9176037 - Specimen processing system (2015-11-03),
6. 8926903 - Pretreatment apparatus and mass spectrometer equipped with the same apparatus (2015-01-06),
7. 8865418 - Immunoanalytical method and system using mass spectrometry technology (2014-10-21),
8. 8730459 - Examination device and examination method (2014-05-20),
9. 8604425 - Sample pretreatment apparatus and mass spectrometer provided with the same (2013-12-10),
10. 8586916 - Adhering matter inspection equipment and method for inspecting adhering matter (2013-11-19),
11. 8319179 - Sample pretreatment apparatus and mass spectrometer provided with the same (2012-11-27),
12. 8217339 - Adhering matter inspection equipment and method for inspecting adhering method (2012-07-10),
13. 8080786 - Mass spectrometer (2011-12-20),
14. 8049169 - Ion guide device, ion reactor, and mass analyzer (2011-11-01),
15. 7882754 - Gas component collector, gas component collecting device, filter producing method, and gas component analyzing apparatus (2011-02-08),

Title: Innovations and Contributions of Izumi Waki in Analytical Technology

Introduction

Izumi Waki, based in Tokyo, Japan, is a prolific inventor with a remarkable portfolio of 58 patents. His innovative work primarily focuses on analytical technology, particularly in solid-phase extraction and viscosity measurement apparatus.

Latest Patents

One of Waki's notable inventions is an analysis device featuring mechanisms for solid-phase extraction material filling and discharging. This analyzer effectively reduces waste generation and lowers running costs while performing solid-phase extraction of measurement components in sample solutions. The device includes a specialized solid-phase extraction container and a supplying mechanism that collectively enhance the efficiency of the analysis process.

Another significant patent is his solid-phase extraction apparatus, designed for highly accurate extraction by automatically controlling liquid-permeation speeds. This invention ensures consistent processing ability across varying sample viscosities. The apparatus incorporates a sample dispensing unit and a converting unit that measures viscosity, ultimately optimizing the pressure applied during the extraction process.

Career Highlights

Waki has worked at esteemed companies, including Hitachi, Ltd. and Hitachi High-Technologies Corporation, where he has contributed to advancing analytical technologies. His extensive experience in these reputable firms has significantly influenced his innovative pursuits and patent developments.

Collaborations

Throughout his career, Izumi Waki has collaborated with talented professionals, including Takashi Baba and Yuichiro Hashimoto. These partnerships have fostered a collaborative environment that nurtures groundbreaking innovations in analytical technology.

Conclusion

Izumi Waki's contributions to the field of analytical technology through his numerous patents highlight his dedication to innovation. His work not only enhances accuracy in analytical processes but also minimizes waste, reflecting a commitment to efficiency and sustainability. As he continues to develop new technologies, Waki remains an influential figure in the realm of scientific advancements.

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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