Company Filing History:

19 out of 39,237

Fujitsu Corporation

where one patent can have more than one assignee

Years Active: 1986-2007

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19 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7269215 - Equalization processing method and the apparatus for periodic fluctuation of transmission line characteristic (2007-09-11),

2. 7114120 - Data processing apparatus and data processing method (2006-09-26),

3. 7113557 - Noise canceling method and apparatus (2006-09-26),

4. 6968497 - Error correction device and error correction method (2005-11-22),

5. 6411650 - PLL control method in data receiving apparatus (2002-06-25),

6. 6298036 - Multiplex transmission system wherein analog signal is transformed to base band, random-transformed and superimposed on dispersed signal points in vector signal space (2001-10-02),

7. 6282246 - Frequency modulation method and modem unit employing such method (2001-08-28),

8. 6282237 - Multiple transmission system wherein analog signal is transformed to base band, random-transformed and superimposed on dispersed signal points in vector signal space (2001-08-28),

9. 6226302 - Multiplex transmission system wherein analog signal is transformed to base band, random-transformed and superimposed on dispersed signal points in vector signal space (2001-05-01),

10. 6052410 - Transmission apparatus, reception apparatus and communication apparatus (2000-04-18),

11. 6044109 - Modem signal transmitter, modem signal transmitting method, modem signal (2000-03-28),

12. 6002724 - Transmission apparatus and control method therefor (1999-12-14),

13. 5896420 - Transmission apparatus having echo cancellation facility (1999-04-20),

14. 5825818 - Apparatus and method of recovering a timing signal in a transmission (1998-10-20),

15. 5710754 - Multiplex transmission system wherein analog signal is transformed to (1998-01-20),

Title: The Innovative Work of Ryoji Okita in Kawasaki, Japan

Introduction

Ryoji Okita is a notable inventor based in Kawasaki, Japan, known for his significant contributions to technology through his impressive portfolio of 19 patents. His work primarily focuses on communication technologies and signal processing, which have made considerable impacts in various industries.

Latest Patents

Among his latest inventions, Okita has introduced an **Equalization Processing Method and the Apparatus for Periodic Fluctuation of Transmission Line Characteristics**. This innovative method enhances equalization processing by detecting changes in transmission line characteristics through received reference signals. By extracting basic frequency signals and adjusting corresponding vectors to be symmetrical, he has enabled more effective judgment during fluctuation intervals of transmission line characteristics.

Another one of his significant contributions is the **Noise Canceling Method and Apparatus**. This technology offers a solution for improving communication quality by adaptively canceling noise, particularly in frequency bands where noise is prevalent. By recognizing the distribution of noise within a reception signal that contains specific signals, Okita's method predicts and cancels out noise, thus restoring original transmission signals and greatly enhancing the signal-to-noise ratio.

Career Highlights

Ryoji Okita has displayed remarkable expertise throughout his career, working with esteemed companies such as Fujitsu Corporation and Ricoh Company, Ltd. His technical ingenuity has not only led to numerous patents but has also positioned him as a key figure in developing advanced communication technologies that benefit various sectors.

Collaborations

Throughout his journey as an inventor, Okita has collaborated with noted professionals in the field, including Takashi Kaku and Noboru Kawada. These collaborations have fostered a rich environment for innovation and have led to several impactful technological advancements.

Conclusion

In conclusion, Ryoji Okita's inventive spirit and contributions have significantly advanced communication technologies. His latest patents reflect his dedication to improving signal processing techniques, enhancing both the reliability and quality of communications. His work continues to inspire future innovations and sets a standard in the field of technology.

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