# US 2018/0022607 A1 · Ozone Gas Generator and Method for Manufacturing Ozone Gas Generator

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- Number: US 2018/0022607 A1
- Document ID: US20180022607A1
- Status: Published application
- Kind: A1
- Application number: 15/546,848
- Filed: 2016-02-10
- Published: 2018-01-25
- Earliest claimed: 2015-03-18
- Assignees: Sumitomo Precision Products Co., Ltd.
- Applicants: Sumitomo Precision Products Co., Ltd.
- Inventors: Takashi MATSUNO
- Web page: https://patentgrep.com/patent/US20180022607A1

## CPC

- C01B 13/115: {characterised by the electrical circuits producing the electrical discharge}
- C01B 13/11: by electric discharge
- C01B 2201/30: Dielectrics used in the electrical dischargers
- C01B 2201/34: Composition of the dielectrics
- C01B: NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; {METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C}

## Abstract

This ozone gas generator includes a pair of electrodes disposed at a predetermined interval to face each other, a pair of dielectrics provided on surfaces of the pair of electrodes that face each other, respectively, and a functional film provided on at least one of surfaces of the pair of dielectrics that face each other. The functional film contains a crystalline compound of a titanium oxide and a niobium oxide.

## Claims

### Claim 1

An ozone gas generator comprising:
a pair of electrodes disposed at a predetermined interval to face each other;
a pair of dielectrics provided on surfaces of the pair of electrodes that face each other, respectively; and
a functional film provided on at least one of surfaces of the pair of dielectrics that face each other, wherein
the functional film contains a crystalline compound of a titanium oxide and a niobium oxide.

### Claim 2 (depends on 1)

The ozone gas generator according to claim 1, wherein
the crystalline compound of the titanium oxide and the niobium oxide of the functional film is produced from a titanium oxide and a niobium oxide in which a molar number of Nb2O5 is at least 0.1 times and not more than 6 times a molar number of TiO2.

### Claim 3 (depends on 1)

The ozone gas generator according to claim 1, wherein
the functional film further contains a solid solution of a titanium oxide.

### Claim 4 (depends on 1)

The ozone gas generator according to claim 1, wherein
the crystalline compound of the titanium oxide and the niobium oxide of the functional film contains at least one of TiNb2O7 and Ti2Nb10O29.

### Claim 5

A method for manufacturing an ozone gas generator, comprising:
producing a crystalline compound of a titanium oxide and a niobium oxide by heating the titanium oxide and the niobium oxide at 1000□ C or more;
providing a pair of electrodes disposed at a predetermined interval to face each other;
providing a pair of dielectrics on surfaces of the pair of electrodes that face each other, respectively; and
providing a functional film that contains the crystalline compound of the titanium oxide and the niobium oxide on at least one of surfaces of the pair of dielectrics that face each other.

### Claim 6 (depends on 5)

The method for manufacturing an ozone gas generator according to claim 5, wherein
the producing of the crystalline compound of the titanium oxide and the niobium oxide includes mixing the titanium oxide and the niobium oxide, producing the crystalline compound by heating the mixed titanium oxide and niobium oxide at 1000□ C or more, and milling the produced compound.

### Claim 7 (depends on 5)

The method for manufacturing an ozone gas generator according to claim 5, wherein
the providing of the functional film includes applying the produced crystalline compound of the titanium oxide and the niobium oxide and a solid solution of a titanium oxide to the dielectrics.