Company Filing History:

16 out of 1,252

Konishiroku Photo Industry Co., Ltd.

Years Active: 1980-1999

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26 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5863689 - Electrophotographic photoreceptor (1999-01-26),

2. 5679488 - Electrophotography photoreceptor (1997-10-21),

3. 5434027 - Photorecptor for electrophotography and image forming method (1995-07-18),

4. 5403691 - Method for preparing an electrophotographic photoreceptor (1995-04-04),

5. 5349426 - Toner guide roller for image-forming process and apparatus applied (1994-09-20),

6. 5134050 - Photoreceptor comprising the combined use of a quinone and azo compound (1992-07-28),

7. 5075189 - Electrophotographic photoreceptor comprising an undercoat layer (1991-12-24),

8. 4952470 - Electrophotographic photosensitive member (1990-08-28),

9. 4931372 - Polycarbonate-containing photoreceptors containing a hindered phenol (1990-06-05),

10. 4888262 - Image forming method (1989-12-19),

11. 4835080 - Photoreceptor having photosensitive layer comprising a brominated (1989-05-30),

12. 4637971 - Photoreceptor having polycarbonate layers and process for the (1987-01-20),

13. 4599287 - Positive charging photorecptor (1986-07-08),

14. 4591542 - Light-sensitive member and preparation thereof for use in (1986-05-27),

15. 4540651 - Electrophotographic photosensitive member (1985-09-10),

Title: Yoshiaki Takei - Innovator in Electrophotographic Technology

Introduction

Yoshiaki Takei, located in Hachioji, Japan, is a distinguished inventor recognized for his contributions to the field of electrophotographic technology. With an impressive portfolio of 26 patents, Takei has significantly impacted the quality and durability of electrophotographic photoreceptors.

Latest Patents

Among his latest innovations is a patent for an electrophotographic photoreceptor, which features an electrically conductive support and a light-sensitive layer. This layer contains carrier generation materials, carrier transport materials, and a binder resin. Notably, the light-sensitive layer consists of a copolymer with specific structural units, designed to enhance sensitivity and durability. Additionally, another patent involves an electrophotographic photoreceptor comprising a conductive support layered with an intermediate layer, carrier generation layer, and carrier transport layer. The outermost layer features silica particles containing precise amounts of aluminum, calcium, and iron, providing improved performance characteristics.

Career Highlights

Throughout his career, Yoshiaki Takei has held prominent roles in several respected companies, including Konishiroku Photo Industry Co., Ltd. and Konica Corporation. His expertise and innovative spirit have been vital in advancing the technologies utilized within these organizations.

Collaborations

Takei has worked alongside noted industry experts, including Hiroyuki Nomori and Yoshihide Fujimaki. These collaborations have fostered a creative environment that has driven significant advancements in the electrophotographic field.

Conclusion

Yoshiaki Takei's numerous patents and collaborations highlight his dedication to innovation in electrophotographic technology. His work continues to influence the industry, ensuring high-quality and durable solutions for modern imaging needs.

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Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.