Mariko Matsumoto

This inventor holds 29 USPTO granted patents and 5 published patent applications, plus 1 CIPO patent and 4 EPO patents, primarily in Mobile Communication Systems. Top assignees: Nec Corporation, Nec C Orporation, Ntt Docomo, Inc.. Active years: 1995-2013.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Mariko Matsumoto. Retrieved from https://idiyas.com/inventor/mariko-matsumoto

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

USPTO Granted Patents = 29 (Patent Applications = 5)

% Patents Active = 62.1

CIPO Patents = 1

EPO Patents = 4 (Patent Applications = 6)

Average Co-Inventor Count = 1.3

ph-index = 9

Forward Citations = 259(Granted Patents)

Location History:

Tokyo, JP (1995 - 2012)
Minato-ku, JP (2012 - 2013)

Company Filing History:

where one patent can have more than one assignee

Years Active: 1995-2013

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Areas of Expertise:

Mobile Communication

MIMO Technology

CDMA Devices

Wireless Apparatus

Transmission Device

Radio Receiver

Synchronization Method

Noise Correction

Equalizer

Data Sampling

Portable Radio Terminal

Automatic Gain Control

29 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 8489133 - Communication system, transmission device, reception device, and synchronization method (2013-07-16),

2. 8265675 - MIMO wireless communication system and method by a plurality of base stations and mobile station (2012-09-11),

3. 8102898 - Channel estimating apparatus, CDMA receiving apparatus, and channel estimating method (2012-01-24),

4. 7796680 - Mobile communication system and wireless apparatus to be used for the same (2010-09-14),

5. 7715487 - Wireless apparatus employing multi-level QAM and method for estimating threshold value (2010-05-11),

6. 7649964 - Radio receiver and noise estimated value correction method (2010-01-19),

7. 7606545 - Portable radio terminal and AFC control method (2009-10-20),

8. 7574226 - System and method for mobile communication (2009-08-11),

9. 7406122 - Equalizer and method of setting initial value for same (2008-07-29),

10. 7403789 - Synchronization establishment between a mobile station and base station system and method used for them (2008-07-22),

11. 7356022 - Mobile communication system, mobile station, base station, and packet communication method used therefor (2008-04-08),

12. 7327799 - Wireless mobile station and system in which rake unit and finger units perform a shared arithmetic operation (2008-02-05),

13. 7305219 - Portable radio terminal and AFC control method (2007-12-04),

14. 7292556 - CDMA radio device and simple path estimating method employed therefor (2007-11-06),

15. 7209762 - Mobile radio communication system and base station, and mobile radio communication method used therefor (2007-04-24),

Title: Mariko Matsumoto: Innovator in Wireless Communication

Introduction

Mariko Matsumoto, located in Tokyo, Japan, is a prominent inventor with an impressive portfolio of 29 patents. His contributions to the field of communication technology are significant, focusing particularly on innovative systems that enhance data transmission and synchronization methods.

Latest Patents

Matsumoto's latest patents include advanced technologies such as a communication system that involves a transmission device and a reception device that utilizes a synchronization method. The receiver in this system is designed to sequentially switch a preset frequency change amount in stages, progressing from a large value to a smaller one. This process involves calculating a reception side frequency candidate to detect synchronization signals effectively. Moreover, he introduced a method in which the transmission side frequency candidate is determined based on the optimal frequency change calculated according to the bandwidth of the synchronization signal.

His other notable work features a MIMO (Multiple Input Multiple Output) wireless communication system that significantly improves transmission rates, even for mobile stations that are far from base stations. This innovation allows the mobile station to intelligently assess propagation line quality and coordinate data transmissions between multiple base stations, ensuring high efficiency and reliability.

Career Highlights

Mariko Matsumoto has worked at NEC Corporation, where he has been instrumental in developing cutting-edge communication technologies. His expertise in the field has positioned him as a key figure in several innovative projects at the company.

Collaborations

Throughout his career, Matsumoto has collaborated with talented professionals such as Nahoko Takano and Kojiro Hamabe. Their joint efforts have led to advancements in communication systems, pushing the boundaries of modern technological capabilities.

Conclusion

With a remarkable track record of innovations and patents, Mariko Matsumoto continues to influence the wireless communication landscape. His work not only streamlines communication processes but also sets a foundation for future technological developments in the industry.

Profile summary based on public USPTO records.