2021 (Gyo-Ke) 10097 <Otaka> — General Principles for Amendments Adding Claims

日本語原文 / Japanese original

Article information

Article type: Case note

Category: Patents

Topics: —

First published on this website: 2026-11-01

Display and classification checked: November 2, 2026

Originally published on Ameblo: 2024-12-13 (Japan time). Full English translation.

https://ameblo.jp/hideki-takaishi/entry-12878473969.html

2021 (Gyo-Ke) 10097 <Otaka>

*General principles for amendments adding claims

“If a new claim after amendment limits the defining features of a particular corresponding pre-amendment claim …, it constitutes … narrowing.”

⇒ Here, the amendment was held not to narrow the claims and to violate the amendment requirements.

*For amendments adding claims, see Tokugikon No. 307.

http://www.tokugikon.jp/gikonshi/307/307kiko1.pdf

https://www.courts.go.jp/app/files/hanrei_jp/141/091141_hanrei.pdf

Consultation guide by purpose

Update history

The first-published date remains unchanged. Display maintenance, classification changes, related-article updates, and text corrections are recorded separately.

November 1, 2026: First published on this website.

November 2, 2026: Added article information, classification, topics, language navigation, related articles where the same case was confirmed, consultation guidance, and SEO. The original text and first-published date were preserved.