Advanced Titanium Sintered Body: High-Performance Innovation

Publication ID: 24-11857034_0001_PTD

Published: October 27, 2025

Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Advanced Titanium Sintered Body: High-Performance Innovation,” Published Technical Disclosure No. 24-11857034_0001_PTD, Published October 27, 2025, available at https://archive.pr1or.art/24-11857034_0001_PTD

This technical disclosure describes improvements that would be readily apparent to a Person Having Ordinary Skill In The Art (PHOSITA) when considered in combination with the foundational architecture disclosed in U.S. Patent No. 11,857,034.

Background and Problem Solved

The original patent disclosed a titanium sintered body with a high mechanical strength and excellent corrosion resistance. However, the existing invention had limitations in terms of surface finish, scratch resistance, and overall aesthetic appeal. The present invention addresses these limitations by introducing novel enhancements to the titanium sintered body, resulting in improved corrosion resistance, scratch resistance, and aesthetic appeal.

Novelty and Inventive Step

The new claims introduce novel enhancements to the titanium sintered body, including the passivation process, nano-coating, and surface modification process, which are not disclosed in the original patent. These enhancements provide improved corrosion resistance, scratch resistance, and aesthetic appeal, thereby distinguishing the present invention from the original patent.

Alternative Embodiments and Variations

Alternative embodiments of the invention could include varying the composition of the titanium alloy powder, adjusting the parameters of the passivation process, or using different types of nano-coatings to achieve optimal scratch resistance. Additionally, the surface modification process could be adapted for use in other applications beyond timepieces, such as in medical devices or aerospace components.

Potential Commercial Applications and Market

The enhanced titanium sintered body has significant commercial potential in the luxury goods industry, particularly in the production of high-end ornaments and timepieces. The improved corrosion resistance, scratch resistance, and aesthetic appeal make the invention attractive to manufacturers seeking to differentiate their products in a competitive market.

CPC Classifications

Section	Class	Group
A	A44	A44C27/003
B	B22	B22F1/06
B	B22	B22F3/15
B	B22	B22F3/24
B	B22	B22F5/106
C	C22	C22C1/0458
C	C22	C22C14/00
B	B22	B22F5/00
B	B22	B22F2003/247
B	B22	B22F2201/01
B	B22	B22F2201/10
B	B22	B22F2301/205

Section 103 Obviousness Analysis (PHOSITA)

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Field of Art

Powder metallurgy and advanced materials engineering, specifically focusing on titanium alloy sintering techniques, surface treatments, and manufacturing processes for precision components like timepieces and ornaments

Person of Ordinary Skill (PHOSITA) Profile

A materials engineer with expertise in powder metallurgy, surface modification techniques, and metallurgical processing, holding at least a master's degree with 3-5 years of industrial experience in titanium alloy fabrication

Obviousness Rationale

A person of ordinary skill would recognize that the PTD's surface treatment and modification techniques represent predictable engineering variations of the source patent's titanium sintered body. The proposed passivation, nano-coating, and surface finishing processes are standard optimization techniques in materials engineering that would naturally emerge from the existing titanium sintering technology disclosed in the source patent.

Obvious Combinations & Variations

Source Patent Element

Titanium sintered body with specific crystal grain diameter parameters

PTD Variation

Addition of nano-coating and surface passivation to enhance corrosion and scratch resistance

Obviousness Reasoning

Surface modification of metal components is a well-known technique for improving material properties, and a PHOSITA would recognize these enhancements as predictable improvements to the base sintered body design

Source Patent Element

Titanium sintered body used in ornaments and timepieces

PTD Variation

Implementing surface finishing processes to enhance aesthetic appeal and wear resistance

Obviousness Reasoning

Aesthetic optimization and wear resistance are standard design considerations for precision components, representing an obvious extension of the original manufacturing approach

Source Patent Element

Titanium alloy powder composition with α-phase stabilizing elements

PTD Variation

Introducing controlled surface treatments to modify material characteristics

Obviousness Reasoning

Manipulating surface properties through post-processing is a standard metallurgical technique for fine-tuning material performance, which would be obvious to a skilled practitioner

Source Patent Element

Sintering process for titanium-based powders

PTD Variation

Adding protective clear coating to prevent tarnishing and maintain appearance

Obviousness Reasoning

Protective coatings are a routine method for preserving metal surface integrity, representing a predictable solution for maintaining material aesthetics

35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11857034, a person having ordinary skill in the art would find the surface modification techniques, nano-coating processes, and protective treatments disclosed herein to be obvious variations of the existing titanium sintered body technology. The proposed modifications represent predictable engineering solutions that would be readily conceived by a skilled practitioner seeking to optimize the performance and aesthetic qualities of titanium-based precision components.

Original Patent Information

Patent Number	US 11,857,034
Title	Titanium sintered body, ornament, and timepiece
Assignee(s)	Seiko Epson Corporation