Yoshikazu Fujisawa

This inventor holds 29 USPTO granted patents, primarily in Exhaust Emission Control. Top assignees: Honda Giken Kogyo Kabushiki Kaisha, Nippon Chemical Industrial Co., Ltd.. Active years: 1988-2003.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshikazu Fujisawa. Retrieved from https://idiyas.com/inventor/yoshikazu-fujisawa

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

Calculating rank

USPTO Granted Patents = 29

% Patents Active = 100.0

Average Co-Inventor Count = 3.9

ph-index = 8

Forward Citations = 225(Granted Patents)

Location History:

Saitama-ken, JP (1997)
Saitama, JP (1988 - 2000)
Wako, JP (2000 - 2003)

Company Filing History:

29 out of 10,092

Honda Giken Kogyo Kabushiki Kaisha

patents

1 out of 163

Nippon Chemical Industrial Co., Ltd.

patents

where one patent can have more than one assignee

Years Active: 1988-2003

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Areas of Expertise:

Heat-Resistant HC Adsorbent

Exhaust Emission Control Catalyst

NOx Sensor

Thermoelectric Module

Fiber-Reinforced Piston Ring

Inorganic Skin Film

Slide Surface Construction

Aluminum Alloy Members

Internal Combustion Engine

Diffusion-Preventive Layer

Nitrogen Oxides Adsorbent

Tubular Thermoelectric Material

29 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6602815 - Exhaust system comprising a heat-resistant HC adsorbent (2003-08-05),

2. 6096966 - Tubular thermoelectric module (2000-08-01),

3. 6096674 - Heat-resistant HC adsorbent (2000-08-01),

4. 6008155 - Exhaust emission control catalyst and process for producing the same (1999-12-28),

5. 5965802 - NO.sub.x sensor for exhaust gas, and process for producing the same (1999-10-12),

6. 5886390 - Thermoelectric material with diffusion-preventive layer (1999-03-23),

7. 5804526 - Adsorbent for nitrogen oxides and exhaust emission control catalyst (1998-09-08),

8. 5800783 - NOx sensor for exhaust gas and method for producing same (1998-09-01),

9. 5632879 - Process for forming inorganic skin film (1997-05-27),

10. 5597657 - Slide surface construction (1997-01-28),

11. 5503942 - Inorganic skin film (1996-04-02),

12. 5468567 - Slide member (1995-11-21),

13. 5445684 - Slide surface construction having orientation specific B.C.C. metal layer (1995-08-29),

14. 5443920 - Slide member (1995-08-22),

15. 5443919 - Slide member (1995-08-22),

Title: The Innovative Work of Yoshikazu Fujisawa

Introduction: Yoshikazu Fujisawa, based in Saitama, Japan, is a prominent inventor known for his extensive contributions to the field of engineering and material science. With a remarkable portfolio of 29 patents, Fujisawa has made significant strides in innovative technologies, particularly in the realm of exhaust systems and heat-resistant materials.

Latest Patents: Among his noteworthy inventions, Fujisawa's latest patent is an "Exhaust system comprising a heat-resistant HC adsorbent." This innovation features a unique heat-resistant HC adsorbent made from an MFI metallo-silicate that includes gallium (Ga) and indium (In) as key skeleton-forming elements. Furthermore, it incorporates a metal component that contains one or more alkali metals or alkaline earth metals in a specified weight percentage, ensuring excellent heat resistance for the exhaust system.

Career Highlights: Throughout his career, Yoshikazu Fujisawa has worked with renowned companies such as Honda and Nippon Chemical Industrial Co., Ltd. His professional journey reflects a commitment to advancing technology and improving existing systems through innovative solutions.

Collaborations: Fujisawa has collaborated with esteemed colleagues such as Takeshi Narishige and Takahiro Gunji. These partnerships demonstrate his ability to work effectively within teams, leveraging collective expertise to drive forward-thinking inventions and technologies.

Conclusion: Yoshikazu Fujisawa's dedication to innovation is evident through his impressive array of patents and collaborations. His latest advancements in heat-resistant materials and exhaust systems signify his vital role in the engineering landscape, marking him as a key figure in the development of sustainable and efficient technologies.

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]