Yoshio Katayama

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Kuwana, JP

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Patents Grantslast 30 patents

Information Patent Grant
Water-treating ceramic filter unit
- Patent number 11,819,787
- Issue date Nov 21, 2023
- PROTERIAL, LTD.
- Yoshio Katayama
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Water-treating ceramic filter module
- Patent number 11,712,648
- Issue date Aug 1, 2023
- PROTERIAL, LTD.
- Yoshio Katayama
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Adsorption structure, adsorption structure unit, and method for man...
- Patent number 11,472,718
- Issue date Oct 18, 2022
- Hitachi Metals, Ltd.
- Keiko Nakano
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Electrically weldable pipe joint and production method thereof
- Patent number 5,916,468
- Issue date Jun 29, 1999
- Hitachi Metals Ltd.
- Saburo Akiyama
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Rotary plug valve
- Patent number 4,572,231
- Issue date Feb 25, 1986
- Hitachi Metals, Ltd.
- Yoshio Katayama
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
WATER-TREATING CERAMIC FILTER UNIT
- Publication number 20210252439
- Publication date Aug 19, 2021
- Hitachi Metals, Ltd.
- Yoshio KATAYAMA
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Application
WATER-TREATING CERAMIC FILTER MODULE
- Publication number 20200346149
- Publication date Nov 5, 2020
- Hitachi Metals, Ltd.
- Yoshio KATAYAMA
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
ADSORPTION STRUCTURE, ADSORPTION STRUCTURE UNIT, AND METHOD FOR MAN...
- Publication number 20200048110
- Publication date Feb 13, 2020
- Hitachi Metals, Ltd.
- Keiko NAKANO
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL