Masayoshi Matsumoto

This inventor holds 8 USPTO granted patents, plus 1 CIPO patent and 3 EPO patents. Top assignees: Dowa Metals & Mining Co., Ltd., Toyo Ink Manufacturing Company, Dowa Metals & Minning Co., Ltd.. Active years: 2001-2012.

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

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

USPTO Granted Patents = 8

% Patents Active = 75.0

CIPO Patents = 1

EPO Patents = 3 (Patent Applications = 5)

Average Co-Inventor Count = 5.6

ph-index = 3

Forward Citations = 37(Granted Patents)

Location History:

Chuo-ku, JP (2003)
Tokyo, JP (2001 - 2012)

Company Filing History:

4 out of 14

Dowa Metals & Mining Co., Ltd.

patents

2 out of 223

Toyo Ink Manufacturing Company

patents

1 out of 1

Dowa Metals & Minning Co., Ltd.

Years Active: 2001-2012

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8 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 8147779 - Method of alkali processing substance containing arsenic (2012-04-03),

2. 8110162 - Method of processing copper arsenic compound (2012-02-07),

3. 8097228 - Method of processing diarsenic trioxide (2012-01-17),

4. 8092765 - Method of processing non-ferrous smelting intermediates containing arsenic (2012-01-10),

5. 8092764 - Method of processing non-ferrous smelting intermediate containing arsenic (2012-01-10),

6. 6504163 - Electron beam irradiation process and an object irradiated with an electron beam (2003-01-07),

7. 6228218 - Water-disintegratable cleaning sheet containing alkylcellulose (2001-05-08),

8. 6188075 - Electron beam irradiating method and object to be irradiated with electron beam (2001-02-13),

Title: Masayoshi Matsumoto: Innovator in Arsenic Processing Technologies

Introduction

Masayoshi Matsumoto is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of arsenic processing, holding a total of 8 patents. His innovative methods focus on improving the efficiency and safety of processing arsenic contained in non-ferrous smelting intermediates.

Latest Patents

Matsumoto's latest patents include a method of alkali processing substances containing arsenic. This method aims to generate scorodite with good reproducibility and ease, without complicated operations. It satisfies the elution standard set by the Japanese Environment Agency and ensures good filterability and stability for processing arsenic, particularly in the diarsenic trioxide form. Another notable patent is a method of processing copper arsenic compounds. This method allows for the easy production of stable scorodite with excellent filtering properties, achieved through a series of leaching, solution adjusting, and crystallizing steps.

Career Highlights

Throughout his career, Matsumoto has worked with notable companies such as Dowa Metals & Mining Co., Ltd. and Toyo Ink Manufacturing Company. His work has significantly advanced the methods used in the processing of arsenic, contributing to safer and more efficient industrial practices.

Collaborations

Matsumoto has collaborated with several professionals in his field, including Yusuke Sato and Hironobu Mikami. These collaborations have further enhanced the development of innovative solutions for arsenic processing.

Conclusion

Masayoshi Matsumoto's contributions to arsenic processing technologies highlight his role as a leading inventor in this specialized field. His innovative methods and collaborations continue to influence the industry positively.

Profile summary based on public USPTO records.