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For the Inventor, By the Inventor

Wako, Japan

Masao Ichikawa

This inventor holds 15 USPTO granted patents, primarily in Polymer Electrolytes. Top assignees: Honda Giken Kogyo Kabushiki Kaisha, Honda Motor Co., Ltd., Kyoto University. Active years: 1991-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masao Ichikawa. Retrieved from https://idiyas.com/inventor/masao-ichikawa

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

Calculating rank
USPTO Granted Patents = 15

% Patents Active = 86.7

Average Co-Inventor Count = 4.3

ph-index = 8

Forward Citations = 213(Granted Patents)


Location History:

  • Saitama, JP (1991 - 1994)
  • Wako, JP (1998 - 2019)

Company Filing History:

goldMedal14 out of 10,092 
 
Honda Giken Kogyo Kabushiki Kaisha
 patents
silverMedal1 out of 22,006 
 
Honda Motor Co., Ltd.
 patents
bronzeMedal1 out of 872 
 
Kyoto University
 patents
4. 1 out of 39,010 
 
Toyota Jidosha Kabushiki Kaisha
 patents
where one patent can have more than one assignee

Years Active: 1991-2019

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Areas of Expertise:
Fluoride Ion Battery
Polymer Electrolyte
Composite Polymer Membrane
Proton Conducting Polymer
Solid Polymer Electrolytes
Heat-Resistant Alloys
Fiber-Reinforced Composite
Aluminum Alloy
Magnesium Alloy
Sintering Process
Electrode Production
High Strength Materials
15 patents (USPTO):Explore Patents
1. 10297831 - Anode layer for fluoride ion battery and fluoride ion battery (2019-05-21),
2. 6872286 - Water electrolysis cell (2005-03-29),
3. 6770393 - Proton conducting polymer, method for producing the same, solid polymer electrolyte and electrode (2004-08-03),
4. 6767664 - Proton conducting polymer, method for producing the same, solid polymer electrolyte and electrode (2004-07-27),
5. 6523699 - Sulfonic acid group-containing polyvinyl alcohol, solid polymer electrolyte, composite polymer membrane, method for producing the same and electrode (2003-02-25),
6. 6478987 - Proton conducting polymer, method for producing the same, solid polymer electrolyte and electrode (2002-11-12),
7. 6465120 - Composite polymer membrane, method for producing the same and solid polymer electrolyte membrane (2002-10-15),
8. 6303053 - Method for producing meta type polyaniline (2001-10-16),
9. 6124060 - Solid polymer electrolytes (2000-09-26),
10. 5811058 - Heat-resistant magnesium alloy (1998-09-22),
11. 5308410 - Process for producing high strength and high toughness aluminum alloy (1994-05-03),
12. 5198167 - Process for producing fiber molding for fiber-reinforced composite (1993-03-30),
13. 5168014 - Silicon carbide-reinforced light alloy composite material (1992-12-01),
14. 5076866 - Heat resistant slide member for internal combustion engine (1991-12-31),
15. 5022918 - Heat-resistant aluminum alloy sinter and process for production of the (1991-06-11),

Title: Masao Ichikawa: Innovator in Fluoride Ion Battery Technology

Introduction

Masao Ichikawa is a prominent inventor based in Wako, Japan, known for his significant contributions to battery technology. With a total of 15 patents to his name, Ichikawa has made remarkable advancements in the field of fluoride ion batteries and water electrolysis cells. His innovative work continues to influence the energy sector.

Latest Patents

Ichikawa's latest patents include an anode layer for fluoride ion batteries and a water electrolysis cell. The anode layer is designed to minimize the decomposition of binders, enhancing the performance of fluoride ion batteries. This anode layer comprises an anode active material and a non-fluorine-based binder with aromatic properties. Additionally, his water electrolysis cell boasts high energy efficiency over extended periods. It features a pair of catalytic layers and an electrolyte membrane, with the anode catalytic layer containing a catalyst made from an alloy of ruthenium, iridium, and selected metals such as iron, nickel, or cobalt.

Career Highlights

Ichikawa has had a distinguished career, working with notable companies such as Honda and Toyota. His experience in these leading automotive firms has allowed him to apply his innovative ideas in practical applications, contributing to advancements in energy storage and efficiency.

Collaborations

Throughout his career, Ichikawa has collaborated with esteemed colleagues, including Hiroshi Akita and Hiroyuki Oyanagi. These partnerships have fostered a creative environment that has led to groundbreaking developments in battery technology.

Conclusion

Masao Ichikawa's contributions to the field of battery technology, particularly in fluoride ion batteries and water electrolysis cells, highlight his role as a key innovator. His work continues to pave the way for advancements in energy efficiency and storage solutions.

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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