Company Filing History:

6 out of 259

Toyo Kohan Co., Ltd.

The Japan Steel Works, Ltd.

patents

where one patent can have more than one assignee

Years Active: 1980-2004

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8 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6777863 - Material for aperture grill for color picture tube, process for making the same, aperture grill, and picture tube (2004-08-17),

2. 6641682 - Method for manufacturing an aperture grill material for color picture tube (2003-11-04),

3. 6617776 - Color picture tube shadow mask material (2003-09-09),

4. 6583545 - Aperture grill material for color picture tube, production method thereof, aperture grill and picture tube (2003-06-24),

5. 6306229 - Method for production of invar alloy steel sheet material for shadow mask (2001-10-23),

6. 4729789 - Process of manufacturing an extruder screw for injection molding (1988-03-08),

7. 4427446 - Corrosion-resistant and abrasive wear-resistant composite material for (1984-01-24),

8. 4194900 - Hard alloyed powder and method of making the same (1980-03-25),

Title: **Innovative Contributions of Tsuneyuki Ide in Color Picture Tube Technology**

Introduction

Tsuneyuki Ide, an inventive mind based in Yamaguchi-ken, Japan, boasts an impressive portfolio of eight patents. His work primarily revolves around the development of advanced materials and processes for color picture tubes, significantly impacting the technology used in television displays.

Latest Patents

Among his latest contributions, Ide has developed a noteworthy material for aperture grills used in color picture tubes. This material demonstrates superior yield strength, high-temperature creep strength, and outstanding magnetic characteristics compared to traditional materials. The innovation involves cold-rolling a low carbon sheet containing 9 to 30 weight % of Nickel (Ni) or a combination of Nickel and Cobalt (Co), followed by the annealing of the cold-rolled steel sheet at temperatures ranging from 400 to 500 degrees Celsius. Furthermore, he has designed a method for manufacturing this aperture grill material, emphasizing excellent tensile strength and high-temperature creep characteristics. The production method utilizes a low-carbon alloy steel sheet, incorporating specific weight percentages of Copper (Cu), Phosphorus (P), Chromium (Cr), and Molybdenum (Mo), which enhances the performance of the final product.

Career Highlights

Throughout his career, Tsuneyuki Ide has been associated with Toyo Kohan Co., Ltd., where he applied his expertise in materials science to advance the field of color display technology. His dedication to innovation has positioned him as a vital contributor in the industry.

Collaborations

Ide's impressive track record includes collaborations with notable colleagues, such as Yasuo Tahara and Hironao Okayama. These partnerships have fostered a vibrant exchange of ideas and techniques, further promoting advancements in the technology underlying color picture tubes.

Conclusion

Tsuneyuki Ide's inventive spirit and commitment to improvement have established him as a significant figure in the realm of color picture tube technology. His patents reflect a profound understanding of material properties and manufacturing processes that continue to influence the display industry today.

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