Tatsutoshi Nakajima

This inventor holds 10 USPTO granted patents, plus 2 CIPO patents. Top assignees: Nippon Filcon Co., Limited, Menicon Co., Ltd., Toyo Contact Lens Company, Limited. Active years: 1979-2010.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tatsutoshi Nakajima. Retrieved from https://idiyas.com/inventor/tatsutoshi-nakajima

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

USPTO Granted Patents = 10

% Patents Active = 90.0

CIPO Patents = 2 (Patent Applications = 2)

Average Co-Inventor Count = 2.4

ph-index = 5

Forward Citations = 234(Granted Patents)

Location History:

Nagoya, JP (1979 - 1992)
Tokyo, JP (1994 - 1999)
Kasugai, JP (1989 - 2000)
Shizuoka, JP (2009 - 2010)

Company Filing History:

4 out of 92

Nippon Filcon Co., Limited

Toyo Contact Lens Company, Limited

patents

Years Active: 1979-2010

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10 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7651588 - Dewatering and thickening belt having improved guide performance and manufacturing method thereof (2010-01-26),

2. 7478655 - Press fabric for pulp machine (2009-01-20),

3. 6018001 - Process for producing contact lens with hydrophilic surface and contact (2000-01-25),

4. 5946766 - Cleaning belt for an industrial belt (1999-09-07),

5. 5274893 - Belt for fabricating a non-woven fabric with projections and method for (1994-01-04),

6. 5118537 - Method for treating the surface of an oxygen permeable hard contact lens (1992-06-02),

7. 4980208 - Method for treating the surface of an oxygen permeable hard contact lens (1990-12-25),

8. 4829126 - High water-absorptive soft contact lens (1989-05-09),

9. 4451629 - Contact lens and process for preparing the same (1984-05-29),

10. 4139513 - Copolymer for soft contact lens, its preparation and soft contact lens (1979-02-13),

Title: Innovations of Tatsutoshi Nakajima

Introduction

Tatsutoshi Nakajima is a prominent inventor based in Nagoya, Japan. He has made significant contributions to the field of engineering, particularly in the development of advanced materials and manufacturing processes. With a total of 10 patents to his name, Nakajima has demonstrated a commitment to innovation and excellence in his work.

Latest Patents

One of Nakajima's latest patents is for a dewatering and thickening belt that features improved guide performance. This invention includes an endless fabric woven with synthetic resin filaments, a bending-resistant element, and a guide protrusion. The guide protrusion is fusion-bonded to a bending-resistant portion, ensuring that its outer end is positioned inside the fabric's end portion. The inner end of the guide protrusion is strategically located 20 to 50 mm outside the inner end of the bending-resistant element.

Another notable patent is for a press fabric designed for pulp machines. This fabric has a multilayer structure and is woven using a monofilament as a warp. The wefts consist of yarns formed by bundling small diameter raw yarns, creating fine water-sucking spaces. The arrangement of the wefts allows the press fabric to maintain its dewatering channel effectively throughout its usage.

Career Highlights

Throughout his career, Tatsutoshi Nakajima has worked with several notable companies, including Nippon Filcon Co., Limited and Toyo Contact Lens Company, Limited. His experience in these organizations has contributed to his expertise in developing innovative solutions in his field.

Collaborations

Nakajima has collaborated with several talented individuals, including Kyoichi Tanaka and Shinji Kanome. These partnerships have fostered a creative environment that has led to the successful development of various inventions.

Conclusion

Tatsutoshi Nakajima is a distinguished inventor whose work has significantly impacted the engineering landscape. His innovative patents and collaborations reflect his dedication to advancing technology and improving manufacturing processes.

Profile summary based on public USPTO records.