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For the Inventor, By the Inventor

Omihachiman, Japan

Hideo Iwai

This inventor holds 4 USPTO granted patents. Top assignees: Sekisui Kagaku Kogyo Kabushiki Kaisha, The Zenitaka Corporation, Sekisui Kagaku Kogyo K.k.. Active years: 1994-1998.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hideo Iwai. Retrieved from https://idiyas.com/inventor/hideo-iwai

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

Calculating rank
USPTO Granted Patents = 4

% Patents Active = 100.0

Average Co-Inventor Count = 5.0

ph-index = 3

Forward Citations = 55(Granted Patents)


Location History:

  • Shiga, JP (1994 - 1995)
  • Oumihachiman, JP (1997 - 1998)

Company Filing History:

goldMedal3 out of 232 
 
Sekisui Kagaku Kogyo Kabushiki Kaisha
 patents
silverMedal2 out of 2 
 
The Zenitaka Corporation
 patents
bronzeMedal1 out of 5 
 
Sekisui Kagaku Kogyo K.k.
 patents
where one patent can have more than one assignee

Years Active: 1994-1998

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4 patents (USPTO):Explore Patents
1. 5759849 - Sludge treatment tank thereof construction method thereof (1998-06-02),
2. 5672506 - Sludge treatment tank and construction method thereof (1997-09-30),
3. 5458831 - Method for manufacturing a fiber reinforced foam resin using adjustable (1995-10-17),
4. 5340300 - An apparatus for continuously manufacturing a fiber reinforced resin (1994-08-23),

Title: Hideo Iwai: Innovator in Sludge Treatment Technology

Introduction

Hideo Iwai is a notable inventor based in Oumihachiman, Japan. He has made significant contributions to the field of sludge treatment technology, holding a total of 4 patents. His innovative approaches have improved construction methods and materials used in this essential area of environmental management.

Latest Patents

Iwai's latest patents include a construction method for sludge treatment tanks that utilizes members made of a glass long-fiber reinforced foamed plastic composite material. This composite material serves as formworks during construction and remains as an inside wall member. The innovative design not only provides insulating and corrosion-resistant properties but also enhances labor efficiency, creates a better working environment, and reduces the overall construction period.

Career Highlights

Throughout his career, Hideo Iwai has worked with prominent companies such as Sekisui Kagaku Kogyo and the Zenitaka Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas in sludge treatment technology.

Collaborations

Iwai has collaborated with notable coworkers, including Noriyasu Saeki and Koichi Watanabe. Their combined expertise has contributed to the advancement of technologies in their respective fields.

Conclusion

Hideo Iwai's contributions to sludge treatment technology exemplify the impact of innovation on environmental management. His patents reflect a commitment to improving construction methods and materials, showcasing the importance of creativity in addressing modern challenges.

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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